C — https://mainichi.jp | BeaverCheck Audit

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Well-optimized for search — your content is discoverable.

Solid infrastructure — fast server responses across the board.

Mostly compliant — a few items need attention.

Rich content metadata — your pages look great everywhere.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Cart Functionality sites average 72

At average

Better than 16% of Cart Functionality sites See full Cart Functionality benchmark →

Amazon ALB sites average 71

At average

See full Amazon ALB benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

Cookie 'AWSALB' is missing the Secure flag

Security gaps expose your site and users to attacks, eroding trust.

Security › Cookie Security

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

24 image-only link(s) without alt text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Link & Button Quality

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Embed this badge

Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fmainichi.jp)](https://beavercheck.com/results/1e1ae878-07f0-41d3-b79c-d991dc5f811e)

HTML

<a href="https://beavercheck.com/results/1e1ae878-07f0-41d3-b79c-d991dc5f811e"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fmainichi.jp" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fmainichi.jp

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. The 4 security gaps leave your users exposed — modern browsers increasingly warn visitors about insecure sites. Addressing the critical issues below would have the most immediate impact on your user trust.

4 security gaps detected — browsers may warn visitors about your site.

1 accessibility issue excludes users who rely on assistive technology.

Return on Investment

¥28,000 investment → ¥311,015/month returns + JPY 100,000,000 risk avoided

Payback period: < 1 month First-year ROI: +13229%

Investment

¥28,000

4h · 5 findings

Monthly returns

¥311,015 /mo

~¥3,732,184 / year

Conversions recovered ¥310,902
Bandwidth savings ¥113

Regulatory risk avoided

JPY 100,000,000

if kept compliant

APPI JPY 100,000,000

Payback period

0 12mo 24mo

¥16,000 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

¥28,000

3.5 developer hours at ¥8000/hr

Based on Japan rates (¥8000/hr)

Quick wins

¥16,000 4 fixes in ~120 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

¥ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

¥8,333,447 / month at risk

~¥100,001,359 / year if left unfixed

Compliance Risk

¥100,000,000

APPI

No privacy policy link detected
APPI: JPY 100,000 – JPY 100,000,000
8 advertising/retargeting trackers detected
APPI: JPY 100,000 – JPY 100,000,000
Trackers detected but no cookie policy found
APPI: JPY 100,000 – JPY 100,000,000

+2 more

Bandwidth Waste

¥113 /mo

9485.3 MB/mo × 11.940 JPY/GB

Optimize transfer: save ~949 KB per page load
Saves ¥113/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.47 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

12.24 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

3.75 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.008

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

9.82 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

32.45 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
asset.fwpub1.com/js/embed-feed.js	1800.0 s	118.2 KiB
code.piano.io/api/tinypass.min.js	14400.0 s	132.4 KiB
cdn.mainichi.jp/vol1/images/v2/sp/index/bnr_podcast_sp.webp	0.0 ms	86.2 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.4 KiB
c.amazon-adsystem.com/aax2/apstag.js	3600.0 s	90.9 KiB
cdn.mainichi.jp/vol1/images/v2/sp/index/bnr_medical.webp	0.0 ms	70.1 KiB
cdn.mainichi.jp/vol1/2022/10/10/20221010hpr00m010002000q/10.webp?1	0.0 ms	69.0 KiB
cdn.mainichi.jp/vol1/2023/08/24/20230824hpr00m040002000q/10.webp?1	0.0 ms	61.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp?1	0.0 ms	53.2 KiB
cdn.mainichi.jp/vol1/2025/12/23/20251223hpr00m040002000q/10.webp?1	0.0 ms	49.0 KiB
anymind360.com/js/8523/ats.js	1200.0 s	52.9 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040141000p/0c7.jpg?1	0.0 ms	44.6 KiB
/signals/config/990943682127685?v=2.9.298&r=stable&domain...	1200.0 s	44.4 KiB
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js	0.0 ms	31.0 KiB
scdn.cxense.com/cx.js	3600.0 s	38.1 KiB
cdn.cxense.com/cx.js	3600.0 s	38.1 KiB
cdn.cxense.com/cx.js	3600.0 s	38.1 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415ddm001070137000p/0c7.jpg?1	0.0 ms	30.4 KiB
asset.fwpub1.com/js/chunks/fwn/5789-98da68aaeeb0cb2772dc.js	1800.0 s	21.9 KiB
dmp.im-apps.net/sdk/log.2.js	5410.0 s	22.7 KiB
cdn.webpush.jp/js/pushone.js	0.0 ms	15.3 KiB
/signals/config/1771352443188203?v=2.9.298&r=stable&domai...	1200.0 s	16.0 KiB
cdn.webpush.jp/js/thirdparty/firebase.11.0.2.js	0.0 ms	13.3 KiB
asset.fwpub1.com/js/chunks/fwn/1657-94117e39298f2fec788d.js	1800.0 s	15.3 KiB
cdn.adjust.com/adjust-smart-banner-latest.min.js	3600.0 s	13.9 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js	600.0 s	11.8 KiB
scripts.clarity.ms/0.8.60-beta/clarity.js	86400.0 s	25.0 KiB
cdn.mainichi.jp/vol1/css/v2/sp/module_top_sp.min.css?20241202	0.0 ms	7.2 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000097000p/0c3.webp?1	0.0 ms	6.1 KiB
asset.fwpub1.com/js/chunks/fwn/4649-902be6faf8ee9da262fa.js	1800.0 s	6.7 KiB
cdn.mainichi.jp/vol1/2026/04/10/20260410k0000m040312000p/0c3.webp?2	0.0 ms	5.6 KiB
asset.fwpub1.com/js/chunks/fwn/1092-a7c9dc530ac13b355767.js	1800.0 s	6.3 KiB
scdn.cxense.com/cx.cce.js	3600.0 s	6.8 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040288000p/0c3.webp?1	0.0 ms	5.1 KiB
asset.fwpub1.com/js/chunks/fwn/2389-4b7e1b3d3181136aff21.js	1800.0 s	5.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/img_noimage_144.png	0.0 ms	5.0 KiB
cdn.cxense.com/track_banners_init.js	3600.0 s	6.3 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm004070114000p/0c3.webp?2	0.0 ms	5.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_mainichi_zukai.jpg	0.0 ms	4.8 KiB
asset.fwpub1.com/js/chunks/fwn/2878-fd463ccd505005b3228e.js	1800.0 s	5.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040141000p/0c3.webp?1	0.0 ms	4.7 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000093000p/0c3.webp?1	0.0 ms	4.6 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm001070110000p/0c3.webp?1	0.0 ms	4.6 KiB
asset.fwpub1.com/js/chunks/fwn/2373-b25119322a28e974963d.js	1800.0 s	5.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo.svg	0.0 ms	4.3 KiB
cdn.mainichi.jp/vol1/css/v2/sp/common_sp.min.css?20241001	0.0 ms	3.9 KiB
asset.fwpub1.com/js/assets/2756875147bf6e7de183f725c308c631.png	1800.0 s	4.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030034000p/0c3.webp?1	0.0 ms	3.7 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_hanasone.png	0.0 ms	3.6 KiB
csm.cxpublic.com/Mainichi/domain/mainichi.jp.js?2026041523	3600.0 s	4.5 KiB
csm.cxpublic.com/Mainichi.js	3600.0 s	4.4 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414k0000m030006000p/0c3.webp?2	0.0 ms	3.5 KiB
asset.fwpub1.com/js/chunks/fwn/2044-814fafba44f1e627f929.js	1800.0 s	4.0 KiB
cdn.mainichi.jp/vol1/css/v2/sp/index_sp.min.css?20251202	0.0 ms	3.4 KiB
cdn.mainichi.jp/vol1/2026/04/13/20260413k0000m030157000p/0c3.webp?1	0.0 ms	3.3 KiB
cdn.smartnews-ads.com/i/pixel.js	150.0 s	3.3 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000099000p/0c3.webp?1	0.0 ms	2.9 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm005070108000p/0c3.webp?1	0.0 ms	2.8 KiB
cdn.mainichi.jp/vol1/2026/04/13/20260413k0000m030158000p/0c3.webp?1	0.0 ms	2.8 KiB
asset.fwpub1.com/js/chunks/fwn/5720-157308b8334b29ea9266.js	1800.0 s	3.1 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm005070109000p/0c3.webp?1	0.0 ms	2.7 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/icon_member_privilege.svg	0.0 ms	2.4 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040020000p/0c3.webp?1	0.0 ms	2.4 KiB
experience-ap.piano.io/xbuilder/experience/load?aid=gmsPBEZtpj	1800.0 s	2.6 KiB
cdn.mainichi.jp/vol1/js/v2/sp/script_top_sp.min.js?202310	0.0 ms	2.2 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030184000p/0c3.webp?1	0.0 ms	2.1 KiB
asset.fwpub1.com/js/chunks/fwn/2942-1c8cfe05a4ac0997ea15.js	1800.0 s	2.3 KiB
www.npttech.com/advertising.js	28800.0 s	3.0 KiB
cdn.opecloud.com/ope-mediaconsortium.js	604800.0 s	17.7 KiB
cdn.mainichi.jp/vol1/libs/v2/jquery.cookie.js	0.0 ms	1.7 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414k0000m030210000p/0c3.webp?1	0.0 ms	1.6 KiB
asset.fwpub1.com/js/chunks/fwn/1647-2f17fe8bb1a9883373ed.js	1800.0 s	1.7 KiB
asset.fwpub1.com/js/chunks/fwn/8098-e261125af6e167d1c686.js	1800.0 s	1.6 KiB
cdn.mainichi.jp/vol1/libs/v2/lazyload.min.js	0.0 ms	1.3 KiB
asset.fwpub1.com/js/chunks/fwn/8740-0c731e7855ea1d5b07c2.js	1800.0 s	1.4 KiB
dmp.im-apps.net/js/1014416/0001/itm.js	10957.0 s	1.5 KiB
cdn.mainichi.jp/vol1/images/v2/common/icon_key.svg	0.0 ms	1.0 KiB
d.line-scdn.net/n/line_tag/public/release/v1/lt.js	2107307.0 s	10.1 KiB
asset.fwpub1.com/js/chunks/fwn/1155-143f41f853f41762b025.js	1800.0 s	1.1 KiB
cdn.mainichi.jp/vol1/images/v2/common/icon_close_popup.svg	0.0 ms	805 B
/coins_webapi/fcm/setting/fe40d9e1c0637bd2ff56caa27db29d0...	0.0 ms	734 B
cdn.mainichi.jp/vol1/images/v2/sp/plus_gnav.svg	0.0 ms	680 B
cdn.mainichi.jp/vol1/images/v2/common/icon_close.svg	0.0 ms	658 B
asset.fwpub1.com/js/chunks/fwn/i18next-6ea18556f38fdf7a81e7.js	1800.0 s	761 B
cdn.mainichi.jp/vol1/images/v2/sp/arrow_gnav.svg	0.0 ms	647 B
cdn.mainichi.jp/vol1/images/v2/common/arrow_blue.svg	0.0 ms	646 B
config.aps.amazon-adsystem.com/configs/3677	3600.0 s	791 B
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo0o9aphqha66l42&sid=...	0.0 ms	411 B
/p?id=1c439b70d8e6b38d597dc905&t=1776295133&url=https%3A%...	0.0 ms	225 B
/tr/?id=990943682127685&ev=PageView&dl=https%3A%2F%2Fmain...	0.0 ms	16 B
/tr/?id=1771352443188203&ev=PageView&dl=https%3A%2F%2Fmai...	0.0 ms	16 B
/tr/?id=990943682127685&ev=MyCustomEvent&dl=https%3A%2F%2...	0.0 ms	16 B
/tr/?id=1771352443188203&ev=MyCustomEvent&dl=https%3A%2F%...	0.0 ms	16 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	45 ms
/s/roboto/v48/KFOMCnqEu92Fr1ME7kSn66aGLdTylUAMQXC89YmC2DP...	35 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:161.105 source:map[column:449 line:19 type:source-location url:/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads-contributor.ContributorServingResponseClientJs.en_US.WQSjKtkEYiM.es5.O/d=1/exm=kernel_loader,loader_js_executable/ed=1/rs=AJlcJMwIx8fty2eKv_YgAn45g2tx1JaJ2w/m=web_iab_tcf_v2_wall_executable urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
毎日新聞PODCAST `div.mb-36 > a > picture > img`	cdn.mainichi.jp/vol1/images/v2/sp/index/bnr_podcast_sp.webp	85.7 KiB	55.7 KiB
a > div.featurelist-image > picture > img.is-webp `a > div.featurelist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2022/10/10/20221010hpr00m010002000q/10.webp?1	68.6 KiB	47.0 KiB
a > div.featurelist-image > picture > img.is-webp `a > div.featurelist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2023/08/24/20230824hpr00m040002000q/10.webp?1	61.1 KiB	39.5 KiB
毎日メディカル `div.mb-36 > a > picture > img`	cdn.mainichi.jp/vol1/images/v2/sp/index/bnr_medical.webp	69.7 KiB	34.5 KiB
夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影 `div.toppickup-item > div.toppickup-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp?1	52.8 KiB	33.7 KiB
a > div.featurelist-image > picture > img.is-webp `a > div.featurelist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2025/12/23/20251223hpr00m040002000q/10.webp?1	48.6 KiB	27.1 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:1172.9899990234376 label:Time to first byte subpart:timeToFirstByte] map[duration:12.4790009765625 label:Resource load delay subpart:resourceLoadDelay] map[duration:888.307 label:Resource load duration subpart:resourceLoadDuration] map[duration:862.304 label:Element render delay subpart:elementRenderDelay]]

lhId: page-4-IMG

nodeLabel: 夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影

path: 1,HTML,1,BODY,8,DIV,1,DIV,4,DIV,0,DIV,1,DIV,0,SECTION,1,DIV,0,A,0,DIV,0,DIV,0,PICTURE,1,IMG

selector: div.toppickup-item > div.toppickup-image > picture > img.is-webp

snippet: <img class="is-webp" src="https://cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp…" width="1200" height="630" alt="夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-4-IMG

nodeLabel: 夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影

path: 1,HTML,1,BODY,8,DIV,1,DIV,4,DIV,0,DIV,1,DIV,0,SECTION,1,DIV,0,A,0,DIV,0,DIV,0,PICTURE,1,IMG

selector: div.toppickup-item > div.toppickup-image > picture > img.is-webp

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
cdn.mainichi.jp/vol1/libs/v2/jquery.cookie.js	1.7 KiB	166 ms
cdn.mainichi.jp/vol1/css/v2/sp/module_top_sp.min.css?20241202	7.2 KiB	333 ms
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js	31.0 KiB	333 ms
cdn.mainichi.jp/vol1/css/v2/sp/index_sp.min.css?20251202	3.4 KiB
cdn.mainichi.jp/vol1/css/v2/sp/common_sp.min.css?20241001	3.9 KiB	1.5 s
anymind360.com/js/8523/ats.js	52.9 KiB	1.8 s
fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap	2.0 KiB	880 ms
scdn.cxense.com/cx.js	38.1 KiB	1.5 s

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.0 s

URL	Time Spent
mainichi.jp/	1.1 s

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 1.7 s 910.1 KiB

URL	Transfer Size	Est Savings
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	186.4 KiB	128.6 KiB
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js	188.1 KiB	84.9 KiB
code.piano.io/api/tinypass.min.js	131.7 KiB	84.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-KX3Q99SS&l=itm_dl1_1014416	139.1 KiB	67.3 KiB
/gtag/destination?id=AW-350911520&cx=c&gtm=4e64e1&bs=ctrl	136.8 KiB	65.4 KiB
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1&bs=ctrl	176.6 KiB	58.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-5M48NC	177.8 KiB	56.8 KiB
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js	74.5 KiB	41.7 KiB
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js	74.5 KiB	40.6 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.4 KiB	39.0 KiB
fundingchoicesmessages.google.com/i/41213723?ers=3	68.8 KiB	36.2 KiB
asset.fwpub1.com/js/embed-feed.js	117.6 KiB	33.5 KiB
connect.facebook.net/en_US/fbevents.js	96.3 KiB	33.1 KiB
scdn.cxense.com/cx.js	37.5 KiB	31.5 KiB
scdn.cxense.com/cx.js	37.5 KiB	31.5 KiB
cdn.cxense.com/cx.js	37.5 KiB	31.5 KiB
anymind360.com/js/8523/ats.js	52.0 KiB	25.5 KiB
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js	30.7 KiB	20.2 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
mainichi.jp/	2.9 s	757 ms	6.8 ms
asset.fwpub1.com/js/embed-feed.js	1.1 s	901 ms	27 ms
Unattributable	1.1 s	227 ms	0.0 ms
/f/AGSKWxVO8SEyWnXXEYluBpxdps0MFAu79xK97Ed-QJPaHL29cJ46P6...	891 ms	161 ms	37 ms
asset.fwpub1.com/js/chunks/fwn/8740-0c731e7855ea1d5b07c2.js	674 ms	649 ms	0.3 ms
www.googletagmanager.com/gtm.js?id=GTM-5M48NC	495 ms	405 ms	53 ms
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1&bs=ctrl	422 ms	339 ms	39 ms
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	380 ms	323 ms	43 ms
c.amazon-adsystem.com/aax2/apstag.js	315 ms	273 ms	25 ms
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js	302 ms	242 ms	41 ms
code.piano.io/api/tinypass.min.js	243 ms	190 ms	32 ms
scripts.clarity.ms/0.8.60-beta/clarity.js	231 ms	181 ms	7.7 ms
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js	224 ms	163 ms	59 ms
scdn.cxense.com/cx.js	220 ms	135 ms	39 ms
fundingchoicesmessages.google.com/i/41213723?ers=3	165 ms	148 ms	15 ms
www.googletagmanager.com/gtm.js?id=GTM-KX3Q99SS&l=itm_dl1_1014416	158 ms	126 ms	28 ms
connect.facebook.net/en_US/fbevents.js	153 ms	88 ms	25 ms
/signals/config/1771352443188203?v=2.9.298&r=stable&domai...	118 ms	99 ms	7.9 ms
/gtag/destination?id=AW-350911520&cx=c&gtm=4e64e1&bs=ctrl	110 ms	83 ms	27 ms
/signals/config/990943682127685?v=2.9.298&r=stable&domain...	109 ms	96 ms	13 ms
csm.cxpublic.com/Mainichi/domain/mainichi.jp.js?2026041523	102 ms	97 ms	1.1 ms
www.npttech.com/advertising.js	96 ms	70 ms	1.0 ms
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js	64 ms	47 ms	10.0 ms
static.ads-twitter.com/uwt.js	60 ms	48 ms	11 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	58 ms	50 ms	7.9 ms
anymind360.com/js/8523/ats.js	57 ms	37 ms	18 ms
cdn.treasuredata.com/sdk/3.1/td.min.js	56 ms	51 ms	4.7 ms
asset.fwpub1.com/js/chunks/fwn/2878-fd463ccd505005b3228e.js	52 ms	51 ms	1.0 ms
asset.fwpub1.com/js/chunks/fwn/5789-98da68aaeeb0cb2772dc.js	51 ms	42 ms	5.2 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	7.1 s
Style & Layout	2.4 s
Other	1.2 s
Script Parsing & Compilation	680 ms
Rendering	252 ms
Garbage Collection	181 ms
Parse HTML & CSS	125 ms

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 14.1 KiB

URL	Transfer Size	Est Savings
.fc-consent-root .fc-dialog-container.fc-fullscreen { height: 100% !important; … } …	16.3 KiB	14.1 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js	188.4 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	186.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-5M48NC	178.3 KiB
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1&bs=ctrl	176.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-KX3Q99SS&l=itm_dl1_1014416	139.1 KiB
/gtag/destination?id=AW-350911520&cx=c&gtm=4e64e1&bs=ctrl	136.9 KiB
code.piano.io/api/tinypass.min.js	132.4 KiB
asset.fwpub1.com/js/embed-feed.js	118.2 KiB
connect.facebook.net/en_US/fbevents.js	96.4 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.9 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.


div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 15 user timings

●Avoid long main-thread tasks 20 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 270 ms

●Server Backend Latencies 1,120 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○Avoid non-composited animations

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
トップニュース `ul.maintab-list > li.is-active > span > button`
最新記事 `ul.maintab-list > li > span > button`
ランキング `ul.maintab-list > li > span > button`
緊迫する中東情勢 `ul.maintab-list > li > span > button`
高市政権の行方 `ul.maintab-list > li > span > button`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div.l-container > div.global-header > button#openmenu `body > div.l-container > div.global-header > button#openmenu`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open `div.gnav-inner > ul.gnav-list > li.gnav-list-item > button.gnav-list-submenu-open`
div#pi-sp-all-popup > div.popuppanel > div.popuppanel4 > button.popuppanel-close `div#pi-sp-all-popup > div.popuppanel > div.popuppanel4 > button.popuppanel-close`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
4/16 01:52 `div.toppickup-item > div.toppickup-detail > div.articletag > span.articletag-date`
4/15 20:39 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 06:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
京都・南丹の男児死亡　死体遺棄の疑いで逮捕の父親、容疑認める `a > div.toppickup-item > div.toppickup-detail > h3.toppickup-title`

These are opportunities to improve keyboard navigation in your application.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Image elements have `[alt]` attributes

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

●Definition list items are wrapped in `<dl>` elements

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Image elements do not have `[alt]` attributes that are redundant text.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

Trust and Safety

Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source
cdn.webpush.jp/js/thirdparty/firebase.11.0.2.js line 10, col 41088

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Topics	anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js line 89, col 1182
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598468&cb=167378707&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=0512fc75-fcd0-47bd-8593-05fff5d25d42&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Ftop%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598469&cb=82264437688&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=b8a7e476-2af1-472b-bd3c-c7d2d5f0fdbb&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Ftop%2Frec2&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598470&cb=90613651516&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=22551ac1-76dd-447a-b364-3df9b1012442&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Ftop%2Fsticky&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598471&cb=74154630650&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=5bac39c6-f521-4fbf-b914-c1ce3f1dd1ed&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Fchannel%2Fsticky&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598472&cb=73419726926&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=7986707d-82bc-4792-86aa-b9b56feffe1e&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Farticle%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598473&cb=36129207612&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=96a8b6aa-33fa-436e-89f4-0c14f46102e8&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Farticle%2Frec2&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598474&cb=23378641696&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=423bad0b-6850-4c6a-a3c4-abd5fcbf6eb7&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Farticle%2Frec3&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598475&cb=42833428912&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=38dd4fa3-ab88-46c1-803b-8acfe624043c&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Farticle%2Fsticky&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598476&cb=48372070212&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=65305827-265d-476f-8bc3-f793ed859aa1&ua=Mozilla%2F5.0%20(Linux%3B%20Android%2011%3B%20moto%20g%20power%20(2022))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Mobile%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FSP%2Farticle%2Frec_free&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=412&sh=823&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Fbanner1&tagId=44217%3A1000299601&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec_free&tagId=44217%3A1000299600&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec1&tagId=44217%3A1000299606&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec2&tagId=44217%3A1000299602&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec3&tagId=44217%3A1000299599&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Fsticky&tagId=44217%3A1000299604&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Fchannel%2Fbanner1&tagId=44217%3A1000299502&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Fchannel%2Fsticky&tagId=44217%3A1000299501&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Fbanner1&tagId=44217%3A1000299499&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Frec1&tagId=44217%3A1000299605&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Frec2&tagId=44217%3A1000299603&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Fsticky&tagId=44217%3A1000299500&groupId=1000188809' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Attestation check for Protected Audience on https://grid-bidder.criteo.com failed.`
mainichi.jp/	`Attestation check for Protected Audience on https://hbopenbid.pubmatic.com failed.`
mainichi.jp/	`Attestation check for Protected Audience on https://htlb.casalemedia.com failed.`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec1&tag...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Fchannel%2Fsticky&t...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Fbanner1&tagI...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec_free...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Fsticky&tagId...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Fchannel%2Fbanner1&...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Fbanner1&...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598468&cb=167378707&charse...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598469&cb=82264437688&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598470&cb=90613651516&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598471&cb=74154630650&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598473&cb=36129207612&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598472&cb=73419726926&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598474&cb=23378641696&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598475&cb=42833428912&char...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec2&tag...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Frec3&tag...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Farticle%2Fsticky&t...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Frec1&tagId=4...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FSP%2Ftop%2Frec2&tagId=4...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598476&cb=48372070212&char...	`Failed to load resource: net::ERR_FAILED`
api.rlcdn.com/api/identity/envelope?pid=13378	`Failed to load resource: the server responded with a status of 451 ()`
	ReferenceError: gtag is not defined at <anonymous>:1:1 at f.ba (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:239:229) at f.ka (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:238:427) at f.Y (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:236:407) at f.F (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:234:445) at f.write (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:234:70) at f (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:241:215) at e (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:240:279) at q.streams (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:242:30) at d (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:973:303)
www.googletagmanager.com/gtm.js?id=GTM-5M48NC line 231, col 503	`Uncaught [object Object]`

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.49 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

3.45 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

470 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.137

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.79 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

7.48 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
asset.fwpub1.com/js/embed-feed.js	1800.0 s	118.2 KiB
code.piano.io/api/tinypass.min.js	14400.0 s	132.4 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.4 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_podcast_pc.webp	0.0 ms	82.2 KiB
c.amazon-adsystem.com/aax2/apstag.js	3600.0 s	90.9 KiB
cdn.mainichi.jp/vol1/2022/10/10/20221010hpr00m010002000q/10.webp?1	0.0 ms	69.0 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_medical_s.webp	0.0 ms	64.9 KiB
cdn.mainichi.jp/vol1/2023/08/24/20230824hpr00m040002000q/10.webp?1	0.0 ms	61.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp?1	0.0 ms	53.2 KiB
cdn.mainichi.jp/vol1/2025/12/23/20251223hpr00m040002000q/10.webp?1	0.0 ms	49.0 KiB
anymind360.com/js/8523/ats.js	1200.0 s	52.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_medical.jpg	0.0 ms	42.1 KiB
/signals/config/990943682127685?v=2.9.298&r=stable&domain...	1200.0 s	44.4 KiB
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.css	0.0 ms	31.2 KiB
cdn.mainichi.jp/vol1/libs/v2/swiper.js	0.0 ms	31.2 KiB
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js	0.0 ms	31.0 KiB
scdn.cxense.com/cx.js	3600.0 s	38.1 KiB
cdn.cxense.com/cx.js	3600.0 s	38.1 KiB
cdn.cxense.com/cx.js	3600.0 s	38.1 KiB
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.min.css?20250318	0.0 ms	27.4 KiB
cdn.mainichi.jp/vol1/2026/04/02/20260402hrc00m040001000q/0.png?1	0.0 ms	24.9 KiB
cdn.mainichi.jp/vol1/2026/04/06/20260406mpj00m040097000p/0c6.webp?1	0.0 ms	23.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040298000p/0c6.webp?1	0.0 ms	22.9 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m010333000p/0c6.webp?1	0.0 ms	21.5 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000097000p/0c6.webp?1	0.0 ms	21.0 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/ogp_tsunagaru.webp	0.0 ms	20.1 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040235000p/0c6.webp?1	0.0 ms	19.3 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040254000p/0c6.webp?1	0.0 ms	19.2 KiB
asset.fwpub1.com/js/chunks/fwn/5789-98da68aaeeb0cb2772dc.js	1800.0 s	21.9 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10001173063000p/0c6.webp?1	0.0 ms	17.9 KiB
dmp.im-apps.net/sdk/log.2.js	5386.0 s	22.7 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000093000p/0c6.webp?1	0.0 ms	16.9 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415mpj00m040001000p/0c6.webp?1	0.0 ms	16.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040288000p/0c6.webp?1	0.0 ms	15.6 KiB
cdn.webpush.jp/js/pushone.js	0.0 ms	15.3 KiB
/signals/config/1771352443188203?v=2.9.298&r=stable&domai...	1200.0 s	16.0 KiB
cdn.webpush.jp/js/thirdparty/firebase.11.0.2.js	0.0 ms	13.3 KiB
asset.fwpub1.com/js/chunks/fwn/1657-94117e39298f2fec788d.js	1800.0 s	15.3 KiB
cdn.mainichi.jp/vol1/libs/v2/customscrollbar.js	0.0 ms	13.2 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c6.webp?1	0.0 ms	11.9 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416mpj00m040004000p/0c6.webp?1	0.0 ms	11.8 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m010281000p/0c6.webp?1	0.0 ms	11.6 KiB
cdn.mainichi.jp/vol1/2026/04/12/20260412k0000m040077000p/0c6.webp?1	0.0 ms	11.5 KiB
cdn.adjust.com/adjust-smart-banner-latest.min.js	3600.0 s	13.9 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js	600.0 s	11.8 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10001173079000p/0c6.webp?1	0.0 ms	10.7 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415s10001173455000p/0c6.webp?1	0.0 ms	10.7 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_economist.png?20260106	0.0 ms	10.6 KiB
scripts.clarity.ms/0.8.60-beta/clarity.js	86400.0 s	25.0 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040313000p/0c6.webp?1	0.0 ms	9.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_24colorpens.png	0.0 ms	8.9 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416k0000m030004000p/0c6.webp?1	0.0 ms	8.7 KiB
cdn.mainichi.jp/vol1/js/v2/common/mypage.js?20240522	0.0 ms	8.5 KiB
cdn.mainichi.jp/vol1/js/v2/pc/script_pc.js?20230929	0.0 ms	8.5 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_mainichi_kotoba_plus.jpg	0.0 ms	8.2 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030272000p/0c6.webp?1	0.0 ms	8.0 KiB
cdn.mainichi.jp/vol1/2026/04/08/20260408k0000m020235000p/0c6.webp?1	0.0 ms	8.0 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415s10001173477000p/0c6.webp?1	0.0 ms	7.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030324000p/0c6.webp?1	0.0 ms	7.4 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000099000p/0c6.webp?1	0.0 ms	7.4 KiB
/vol1/images/v2/pc/index/logo_member_wallstreetjournal.pn...	0.0 ms	7.1 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_digital.png?20241001	0.0 ms	6.3 KiB
cdn.mainichi.jp/vol1/2026/04/08/20260408k0000m010409000p/0c3.webp?2	0.0 ms	6.1 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000096000p/0c6.webp?1	0.0 ms	5.9 KiB
asset.fwpub1.com/js/chunks/fwn/4649-902be6faf8ee9da262fa.js	1800.0 s	6.7 KiB
/ng/common/i18n/platform-translation-map_en_US.js?version...	86400.0 s	14.0 KiB
cdn.mainichi.jp/vol1/2026/04/10/20260410k0000m040312000p/0c3.webp?2	0.0 ms	5.6 KiB
cdn.mainichi.jp/vol1/2025/11/21/20251121k0000m010368000p/0c6.webp?2	0.0 ms	5.5 KiB
asset.fwpub1.com/js/chunks/fwn/1092-a7c9dc530ac13b355767.js	1800.0 s	6.3 KiB
/_sam/H4sIAAAAAAAA_z3IwQ6AIAgA0B9KmJ76m4bJHI6oBa7f7-bt7eE...	603371.0 s	54.4 KiB
scdn.cxense.com/cx.cce.js	3600.0 s	6.8 KiB
eus.rubiconproject.com/usync.js	57761.0 s	11.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040288000p/0c3.webp?1	0.0 ms	5.1 KiB
cdn.mainichi.jp/vol1/2026/04/09/20260409mmd00m414001000p/0c6.webp?1	0.0 ms	5.1 KiB
asset.fwpub1.com/js/chunks/fwn/2389-4b7e1b3d3181136aff21.js	1800.0 s	5.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/img_noimage_144.png	0.0 ms	5.0 KiB
cdn.cxense.com/track_banners_init.js	3600.0 s	6.3 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm004070114000p/0c3.webp?2	0.0 ms	5.0 KiB
cdn.mainichi.jp/vol1/libs/v2/colorbox.js	0.0 ms	5.0 KiB
cdn.mainichi.jp/vol1/css/v2/pc/common_pc.css	0.0 ms	4.9 KiB
cdn.mainichi.jp/vol1/2026/04/01/20260401dde012010054000p/0c3.webp?2	0.0 ms	4.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_mainichi_zukai.jpg	0.0 ms	4.8 KiB
cdn.mainichi.jp/vol1/2022/04/01/20220401hpr00m030001000q/0c6.webp?2	0.0 ms	4.8 KiB
asset.fwpub1.com/js/chunks/fwn/2878-fd463ccd505005b3228e.js	1800.0 s	5.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040141000p/0c3.webp?1	0.0 ms	4.7 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm001070110000p/0c3.webp?1	0.0 ms	4.6 KiB
cdn.mainichi.jp/vol1/2026/04/03/20260403k0000m100095000p/0c3.webp?1	0.0 ms	4.4 KiB
cdn.mainichi.jp/vol1/css/v2/common/customscrollbar.min.css	0.0 ms	4.4 KiB
asset.fwpub1.com/js/chunks/fwn/2373-b25119322a28e974963d.js	1800.0 s	5.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo.svg	0.0 ms	4.3 KiB
cdn.mainichi.jp/vol1/css/v2/pc/common_pc.min.css?20250416	0.0 ms	4.3 KiB
cdn.mainichi.jp/vol1/2026/03/15/20260315biz00m020001000p/0c6.webp?1	0.0 ms	4.2 KiB
cdn.mainichi.jp/vol1/css/v2/pc/index_pc.min.css?20260317	0.0 ms	4.1 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414wom00m404007000p/0c6.webp?2	0.0 ms	4.1 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_studyenglish.svg?20251031	0.0 ms	4.1 KiB
asset.fwpub1.com/js/assets/2756875147bf6e7de183f725c308c631.png	1800.0 s	4.5 KiB
cdn.mainichi.jp/vol1/css/v2/pc/mypage_pc.min.css?20240522	0.0 ms	3.8 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_syougakuseishinbun.png	0.0 ms	3.8 KiB
/showtemplate/general/loadTranslationMap?aid=gmsPBEZtpj&v...	86400.0 s	9.4 KiB
buy-ap.piano.io/widget/dist/template/css/template.bundle.1.0.css	14400.0 s	5.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030034000p/0c3.webp?1	0.0 ms	3.7 KiB
cdn.mainichi.jp/vol1/css/v2/common/swiper.min.css	0.0 ms	3.6 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_hanasone.png	0.0 ms	3.6 KiB
csm.cxpublic.com/Mainichi/domain/mainichi.jp.js?2026041523	3600.0 s	4.5 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_sodan.png	0.0 ms	3.6 KiB
csm.cxpublic.com/Mainichi.js	3600.0 s	4.4 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414k0000m030006000p/0c3.webp?2	0.0 ms	3.5 KiB
asset.fwpub1.com/js/chunks/fwn/2044-814fafba44f1e627f929.js	1800.0 s	4.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_kishanome.png	0.0 ms	3.4 KiB
cdn.mainichi.jp/vol1/2026/04/13/20260413k0000m030157000p/0c3.webp?1	0.0 ms	3.3 KiB
cdn.smartnews-ads.com/i/pixel.js	150.0 s	3.3 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm005070108000p/0c3.webp?1	0.0 ms	2.8 KiB
cdn.mainichi.jp/vol1/2026/04/13/20260413k0000m030158000p/0c3.webp?1	0.0 ms	2.8 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_keizaipremier.png	0.0 ms	2.7 KiB
asset.fwpub1.com/js/chunks/fwn/5720-157308b8334b29ea9266.js	1800.0 s	3.1 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm005070109000p/0c3.webp?1	0.0 ms	2.7 KiB
cdn.mainichi.jp/vol1/2026/03/29/20260329k0000m200054000p/0c3.webp?1	0.0 ms	2.5 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/icon_member_privilege.svg	0.0 ms	2.4 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040020000p/0c3.webp?1	0.0 ms	2.4 KiB
cdn.mainichi.jp/vol1/2026/04/07/20260407k0000m010233000p/0c3.webp?1	0.0 ms	2.3 KiB
experience-ap.piano.io/xbuilder/experience/load?aid=gmsPBEZtpj	1800.0 s	2.6 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_ringbell.png?20241001	0.0 ms	2.2 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_economist.png	0.0 ms	2.1 KiB
dmp.im-apps.net/sdk/im-uid.js	10800.0 s	3.0 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030184000p/0c3.webp?1	0.0 ms	2.1 KiB
cdn.mainichi.jp/vol1/2026/04/09/20260409k0000m200168000p/0c3.webp?1	0.0 ms	2.0 KiB
asset.fwpub1.com/js/chunks/fwn/2942-1c8cfe05a4ac0997ea15.js	1800.0 s	2.3 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_suudoku.svg?20241001	0.0 ms	2.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_kimochi.png	0.0 ms	1.8 KiB
www.npttech.com/advertising.js	28800.0 s	3.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_editorial.png	0.0 ms	1.8 KiB
cdn.opecloud.com/ope-mediaconsortium.js	604800.0 s	17.7 KiB
buy-ap.piano.io/widget/dist/template/css/img/fail-icon.png	14400.0 s	2.6 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_seijipremier.png	0.0 ms	1.7 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_yoroku.png	0.0 ms	1.7 KiB
cdn.mainichi.jp/vol1/libs/v2/jquery.cookie.js	0.0 ms	1.7 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414k0000m030210000p/0c3.webp?1	0.0 ms	1.6 KiB
cdn.mainichi.jp/vol1/js/v2/common/morelink.js?20220906	0.0 ms	1.6 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_sundaymainichi.png	0.0 ms	1.5 KiB
asset.fwpub1.com/js/chunks/fwn/1647-2f17fe8bb1a9883373ed.js	1800.0 s	1.7 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_zukai.svg?202411071150	0.0 ms	1.5 KiB
asset.fwpub1.com/js/chunks/fwn/8098-e261125af6e167d1c686.js	1800.0 s	1.6 KiB
ads.pubmatic.com/AdServer/js/userSync.js	128826.0 s	3.9 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_db.svg?20241001	0.0 ms	1.3 KiB
cdn.mainichi.jp/vol1/libs/v2/lazyload.min.js	0.0 ms	1.3 KiB
cdn.mainichi.jp/vol1/css/v2/common/colorbox.min.css	0.0 ms	1.3 KiB
asset.fwpub1.com/js/chunks/fwn/8740-0c731e7855ea1d5b07c2.js	1800.0 s	1.4 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_tokutoku.svg?20241001	0.0 ms	1.2 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_maipo.svg	0.0 ms	1.1 KiB
dmp.im-apps.net/js/1014416/0001/itm.js	10934.0 s	1.5 KiB
cdn.mainichi.jp/vol1/images/v2/common/icon_key.svg	0.0 ms	1.0 KiB
d.line-scdn.net/n/line_tag/public/release/v1/lt.js	2107283.0 s	10.1 KiB
asset.fwpub1.com/js/chunks/fwn/1155-143f41f853f41762b025.js	1800.0 s	1.1 KiB
cdn.mainichi.jp/vol1/images/v2/common/icon_close_popup.svg	0.0 ms	806 B
/coins_webapi/fcm/setting/fe40d9e1c0637bd2ff56caa27db29d0...	0.0 ms	734 B
asset.fwpub1.com/js/chunks/fwn/i18next-6ea18556f38fdf7a81e7.js	1800.0 s	762 B
cdn.mainichi.jp/vol1/images/v2/common/arrow_blue.svg	0.0 ms	650 B
config.aps.amazon-adsystem.com/configs/3677	3600.0 s	790 B
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo0o9sxrjhr8vpl2&sid=...	0.0 ms	412 B
/dmpsynclog/log.gif?distributorid=&event=69&event_name=sy...	0.0 ms	308 B
/p?id=1c439b70d8e6b38d597dc905&t=1776295156&url=https%3A%...	0.0 ms	225 B
/tr/?id=990943682127685&ev=PageView&dl=https%3A%2F%2Fmain...	0.0 ms	16 B
/tr/?id=1771352443188203&ev=PageView&dl=https%3A%2F%2Fmai...	0.0 ms	16 B
/tr/?id=990943682127685&ev=MyCustomEvent&dl=https%3A%2F%2...	0.0 ms	16 B
/tr/?id=1771352443188203&ev=MyCustomEvent&dl=https%3A%2F%...	0.0 ms	16 B
d.line-scdn.net/n/line_tag/public/release/v1/lt.js	2107283.0 s	0 B
scdn.cxense.com/cx.cce.js	3600.0 s	0 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.1367] map[node:map[boundingRect:map[bottom:940 height:50 left:0 right:1350 top:890 width:1350] lhId:page-1-DIV nodeLabel:body > div#pianoj_ribbon path:1,HTML,1,BODY,75,DIV selector:body > div#pianoj_ribbon snippet:<div id="pianoj_ribbon" style="position: fixed; bottom: 0px; left: 0px; width: 100%; z-index: 9999;"> type:node] score:0.072284 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-2-LINK nodeLabel:head > link path:1,HTML,0,HEAD,157,LINK selector:head > link snippet:<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:940 height:50 left:0 right:1350 top:890 width:1350] lhId:page-1-DIV nodeLabel:body > div#pianoj_ribbon path:1,HTML,1,BODY,75,DIV selector:body > div#pianoj_ribbon snippet:<div id="pianoj_ribbon" style="position: fixed; bottom: 0px; left: 0px; width: 100%; z-index: 9999;"> type:node] score:0.064416]]

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	45 ms
/s/roboto/v48/KFOMCnqEu92Fr1ME7kSn66aGLdTylUAMQXC89YmC2DP...	35 ms
/s/roboto/v48/KFOMCnqEu92Fr1ME7kSn66aGLdTylUAMQXC89YmC2DP...	30 ms

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:223.21 source:map[column:31237 line:4 type:source-location url:https://cdn.mainichi.jp/vol1/libs/v2/customscrollbar.js urlProvider:network]]]

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:223.21 source:map[column:31435 line:3 type:source-location url:https://cdn.mainichi.jp/vol1/libs/v2/customscrollbar.js urlProvider:network]] map[reflowTime:241.989 source:map[type:text value:[unattributed]]] map[reflowTime:0.05 source:map[column:23219 line:1 type:source-location url:https://scripts.clarity.ms/0.8.60-beta/clarity.js urlProvider:network]]]

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:483.94 label:Time to first byte subpart:timeToFirstByte] map[duration:1063.854 label:Resource load delay subpart:resourceLoadDelay] map[duration:49.437 label:Resource load duration subpart:resourceLoadDuration] map[duration:1046.953 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-IMG

nodeLabel: 夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影

path: 1,HTML,1,BODY,12,DIV,1,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,SECTION,0,DIV,0,DIV,1,DIV,0,A,0,DIV,0,DIV,0,PICTURE,1,IMG

selector: div.toppickup-item > div.toppickup-image > picture > img.is-webp

snippet: <img class="is-webp" loading="lazy" src="https://cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp…" width="394" height="263" alt="夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG

nodeLabel: 夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影

path: 1,HTML,1,BODY,12,DIV,1,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,SECTION,0,DIV,0,DIV,1,DIV,0,A,0,DIV,0,DIV,0,PICTURE,1,IMG

selector: div.toppickup-item > div.toppickup-image > picture > img.is-webp

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
cdn.mainichi.jp/vol1/js/v2/common/mypage.js?20240522	8.5 KiB
cdn.mainichi.jp/vol1/css/v2/pc/index_pc.min.css?20260317	4.1 KiB
cdn.mainichi.jp/vol1/js/v2/common/morelink.js?20220906	1.6 KiB
cdn.mainichi.jp/vol1/css/v2/pc/mypage_pc.min.css?20240522	3.8 KiB
cdn.mainichi.jp/vol1/css/v2/pc/common_pc.min.css?20250416	4.3 KiB
cdn.mainichi.jp/vol1/libs/v2/colorbox.js	5.0 KiB
cdn.mainichi.jp/vol1/libs/v2/swiper.js	31.2 KiB	112 ms
cdn.mainichi.jp/vol1/css/v2/common/colorbox.min.css	1.3 KiB	56 ms
cdn.mainichi.jp/vol1/css/v2/common/customscrollbar.min.css	4.4 KiB
cdn.mainichi.jp/vol1/css/v2/common/swiper.min.css	3.6 KiB	304 ms
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.min.css?20250318	27.4 KiB	112 ms
cdn.mainichi.jp/vol1/libs/v2/customscrollbar.js	13.2 KiB	56 ms
fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;0,700;1,500&display=swap	2.2 KiB	319 ms
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js	31.0 KiB	56 ms
cdn.mainichi.jp/vol1/libs/v2/jquery.cookie.js	1.7 KiB	56 ms
cdn.mainichi.jp/vol1/libs/v2/lazyload.min.js	1.3 KiB
scdn.cxense.com/cx.js	38.1 KiB	286 ms
anymind360.com/js/8523/ats.js	52.9 KiB	363 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
毎日新聞PODCAST `div.mt-32 > a > picture > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_podcast_pc.webp	81.7 KiB	75.7 KiB
a > div.featurelist-image > picture > img.is-webp `a > div.featurelist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2022/10/10/20221010hpr00m010002000q/10.webp?1	68.6 KiB	66.7 KiB
a > div.featurelist-image > picture > img.is-webp `a > div.featurelist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2023/08/24/20230824hpr00m040002000q/10.webp?1	61.1 KiB	59.3 KiB
毎日メディカル `div.mb-32 > a > picture > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_medical_s.webp	64.5 KiB	56.8 KiB
a > div.featurelist-image > picture > img.is-webp `a > div.featurelist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2025/12/23/20251223hpr00m040002000q/10.webp?1	48.6 KiB	46.8 KiB
夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影 `div.toppickup-item > div.toppickup-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp?1	52.8 KiB	41.1 KiB
head > link `head > link`	cdn.mainichi.jp/vol1/2026/04/02/20260402hrc00m040001000q/0.png?1	24.4 KiB	24.0 KiB
「不可解すぎる」　京都の11歳行方不明、見えてきた二つの謎 `div.siderankinglist-item > div.siderankinglist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/06/20260406mpj00m040097000p/0c6.webp?1	23.1 KiB	22.2 KiB
家宅捜索が入った安達結希さんの自宅＝京都府南丹市で2026年4月15日午前10時35分、本社ヘリから北村隆夫撮影 `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040298000p/0c6.webp?1	22.4 KiB	18.4 KiB
皇族数確保について協議に臨む与野党の議員ら＝東京都千代田区の衆院議長公邸で2026年4月15日午後3時1分、和田大典撮影 `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m010333000p/0c6.webp?1	21.1 KiB	17.1 KiB
瀧本美織の公式インスタグラム（＠mioritakimoto_official）から `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000097000p/0c6.webp?1	20.6 KiB	16.6 KiB
つながる毎日新聞 `section#index-tsunagaru > a > picture > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/ogp_tsunagaru.webp	19.7 KiB	15.6 KiB
時間外労働の上限規定 `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040235000p/0c6.webp?1	18.9 KiB	14.9 KiB
東京地裁＝東京都千代田区で2020年1月15日午前10時36分、米田堅持撮影 `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040254000p/0c6.webp?1	18.8 KiB	14.8 KiB
京都・南丹11歳死亡　急展開で刑事事件に発展　残る多くの謎 `div.siderankinglist-item > div.siderankinglist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040288000p/0c6.webp?1	15.2 KiB	14.2 KiB
＜ソ・楽＞勝利しタッチを交わす村林（左から3人目）ら楽天ナイン（撮影・岡田　丈靖） `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/16/20260416s10001173063000p/0c6.webp?1	17.5 KiB	13.5 KiB
三上悠亜公式インスタグラム(@yua_mikami)から `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000093000p/0c6.webp?1	16.5 KiB	12.7 KiB
次々と警察車両が集まる安達結希さんの自宅周辺＝京都府南丹市で2026年4月15日午前7時4分、資野亮太撮影 `div.panellist-item > div.panellist-image > picture > img.is-webp`	cdn.mainichi.jp/vol1/2026/04/15/20260415mpj00m040001000p/0c6.webp?1	16.2 KiB	12.4 KiB
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_economist.png?20260106	10.2 KiB	9.6 KiB
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	/vol1/images/v2/pc/index/logo_member_wallstreetjournal.pn...	6.7 KiB	6.0 KiB
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_digital.png?20241001	5.9 KiB	5.5 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
body > div#pianoj_ribbon `body > div#pianoj_ribbon`	0.072
body > div#pianoj_ribbon `body > div#pianoj_ribbon`	0.064

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 39.6 KiB

URL	Transfer Size	Est Savings
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.min.css?20250318	27.0 KiB	25.6 KiB
.fc-consent-root .fc-dialog-container.fc-fullscreen { height: 100% !important; … } …	16.3 KiB	14.1 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 390 ms 902.9 KiB

URL	Transfer Size	Est Savings
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...	186.4 KiB	126.9 KiB
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js	188.1 KiB	85.1 KiB
code.piano.io/api/tinypass.min.js	131.7 KiB	72.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-KX3Q99SS&l=itm_dl1_1014416	139.1 KiB	67.3 KiB
/gtag/destination?id=AW-350911520&cx=c&gtm=4e64e1h1&bs=ctrl	136.8 KiB	65.4 KiB
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1h1&bs=ctrl	176.6 KiB	58.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-5M48NC	177.8 KiB	57.3 KiB
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js	74.5 KiB	40.6 KiB
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js	74.5 KiB	40.0 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.4 KiB	39.0 KiB
fundingchoicesmessages.google.com/i/41213723?ers=3	68.8 KiB	36.2 KiB
connect.facebook.net/en_US/fbevents.js	96.3 KiB	33.5 KiB
asset.fwpub1.com/js/embed-feed.js	117.6 KiB	33.5 KiB
scdn.cxense.com/cx.js	37.5 KiB	31.5 KiB
scdn.cxense.com/cx.js	37.5 KiB	31.5 KiB
cdn.cxense.com/cx.js	37.5 KiB	31.5 KiB
cdn.mainichi.jp/vol1/libs/v2/swiper.js	30.9 KiB	27.4 KiB
anymind360.com/js/8523/ats.js	52.0 KiB	25.5 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
mainichi.jp/	1.5 s	148 ms	1.7 ms
Unattributable	354 ms	63 ms	0.0 ms
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js	314 ms	60 ms	1.6 ms
asset.fwpub1.com/js/chunks/fwn/8740-0c731e7855ea1d5b07c2.js	188 ms	175 ms	0.1 ms
asset.fwpub1.com/js/embed-feed.js	151 ms	117 ms	6.4 ms
www.googletagmanager.com/gtm.js?id=GTM-5M48NC	144 ms	120 ms	14 ms
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js	126 ms	110 ms	12 ms
code.piano.io/api/tinypass.min.js	99 ms	77 ms	7.7 ms
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1h1&bs=ctrl	96 ms	85 ms	10 ms
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...	92 ms	65 ms	10 ms
asset.fwpub1.com/js/chunks/fwn/1657-94117e39298f2fec788d.js	87 ms	72 ms	0.7 ms
scdn.cxense.com/cx.js	81 ms	37 ms	9.6 ms
/f/AGSKWxX3A0yDG9tFB-rOHfRhFg6K-4hDs5rbgTJ5_QXdZvhElbqxI-...	78 ms	39 ms	8.5 ms
c.amazon-adsystem.com/aax2/apstag.js	75 ms	64 ms	6.2 ms
scripts.clarity.ms/0.8.60-beta/clarity.js	72 ms	58 ms	1.2 ms
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js	60 ms	45 ms	15 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	1.9 s
Style & Layout	1.5 s
Other	431 ms
Script Parsing & Compilation	174 ms
Rendering	121 ms
Garbage Collection	55 ms
Parse HTML & CSS	39 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
The page has an unload handler in a sub frame.	Actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js	188.4 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...	186.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-5M48NC	178.3 KiB
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1h1&bs=ctrl	176.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-KX3Q99SS&l=itm_dl1_1014416	139.1 KiB
/gtag/destination?id=AW-350911520&cx=c&gtm=4e64e1h1&bs=ctrl	136.9 KiB
code.piano.io/api/tinypass.min.js	132.4 KiB
asset.fwpub1.com/js/embed-feed.js	118.2 KiB
connect.facebook.net/en_US/fbevents.js	96.4 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.9 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_zukai.svg?202411071150
つながる毎日新聞 `section#index-tsunagaru > a > picture > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/ogp_tsunagaru.webp
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_maipo.svg
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	/vol1/images/v2/pc/index/logo_member_wallstreetjournal.pn...
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_economist.png?20260106
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_ringbell.png?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_digital.png?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_studyenglish.svg?20251031
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_tokutoku.svg?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_db.svg?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img `div.topmember-item > div.topmember-item-inner > div.topmember-image > img`	cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_suudoku.svg?20241001
毎日新聞社 `div.footer-bottom > div.footer-logo > a > img`

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Document request latency

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 15 user timings

●Avoid long main-thread tasks 13 long tasks found

●Network Requests

●Network Round Trip Times 270 ms

●Server Backend Latencies 640 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 450 ms

○INP breakdown

○Avoid non-composited animations

Accessibility

ARIA

Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
トップニュース `div.maintab > ul.maintab-list > li.is-active > button`
ランキング `div.maintab > ul.maintab-list > li > button`
緊迫する中東情勢 `div.maintab > ul.maintab-list > li.text-ellipsis-1 > button.text-ellipsis-1`
高市政権の行方 `div.maintab > ul.maintab-list > li.text-ellipsis-1 > button.text-ellipsis-1`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div#pi-pc-all-popupleft > div.popuppanel4 > button.popuppanel-close `body > div#pi-pc-all-popupleft > div.popuppanel4 > button.popuppanel-close`

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div#pianoj_ribbon > div.tp-container-inner > iframe#offer_762df4d1ce1a6fda5189-0 `body > div#pianoj_ribbon > div.tp-container-inner > iframe#offer_762df4d1ce1a6fda5189-0`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
4/16 01:52 `div.toppickup-item > div.toppickup-detail > div.articletag > span.articletag-date`
4/15 20:39 `div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date`
4/16 06:00 `div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date`
4/16 07:00 `div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date`
4/16 05:00 `div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date`
4/16 06:00 `div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date`
4/16 05:00 `div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date`
4/16 02:04 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 02:04 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 02:04 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 02:02 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 17:37 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 05:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/13 18:01 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/13 17:15 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
広告 `div.l-listmain > aside#index-remarkable > h2.title-block > span.topremarkable-title-sub`
4/16 06:00 `li > a > div.articletag > span.articletag-date`
4/16 05:31 `li > a > div.articletag > span.articletag-date`
4/13 06:01 `li > a > div.articletag > span.articletag-date`
4/16 08:15 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 08:11 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 08:07 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 08:05 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 08:00 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 08:00 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 08:00 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 08:00 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 11:30 `div.toptile-item > div.toptile-detail > div.articletag > span.articletag-date`
4/16 02:45 `div.toptile-item > div.toptile-detail > div.articletag > span.articletag-date`
4/16 01:05 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 06:00 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 05:30 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 05:30 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 02:04 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/16 01:22 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 22:34 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 22:33 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 22:23 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 22:18 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 21:44 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 21:05 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 20:23 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 20:20 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 20:19 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
4/15 19:28 `div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date`
宅配無料 `div.topmember-label > ul > li > span.memberlabel-takuhai-free`
宅配プレミアム `div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium`
スタンダード `div.topmember-label > ul > li > span.memberlabel-standard`
宅配プレミアム `div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium`
スタンダード `div.topmember-label > ul > li > span.memberlabel-standard`
宅配無料 `div.topmember-label > ul > li > span.memberlabel-takuhai-free`
宅配プレミアム `div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium`
スタンダード `div.topmember-label > ul > li > span.memberlabel-standard`
宅配無料 `div.topmember-label > ul > li > span.memberlabel-takuhai-free`
宅配プレミアム `div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium`
スタンダード `div.topmember-label > ul > li > span.memberlabel-standard`
宅配無料 `div.topmember-label > ul > li > span.memberlabel-takuhai-free`
宅配プレミアム `div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium`
宅配無料 `div.topmember-label > ul > li > span.memberlabel-takuhai-free`
宅配プレミアム `div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium`
宅配無料 `div.topmember-label > ul > li > span.memberlabel-takuhai-free`
宅配プレミアム `div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium`
4/16 01:52 `div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date`
4/15 20:39 `div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date`
4/16 01:22 `div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date`
4/12 21:26 `div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date`
4/6 18:57 `div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date`
4/16 07:45 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 07:15 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 07:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 06:45 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 06:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 05:45 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 05:45 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 05:30 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 02:03 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 20:53 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 20:42 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 20:19 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 06:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 21:44 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 20:31 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 20:23 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 20:19 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 19:31 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 06:02 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 06:01 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 06:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 01:05 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 00:59 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 22:34 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 08:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 23:12 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 21:20 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 19:25 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 19:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/14 22:59 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 07:15 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 21:44 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 20:27 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 19:03 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 13:15 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/15 13:00 `div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date`
4/16 07:00 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 07:45 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 06:15 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 05:03 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 05:45 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 08:00 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 05:04 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 05:05 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`
4/16 05:02 `div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date`

These are opportunities to improve the legibility of your content.

Navigation

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
京都・南丹の男児死亡　死体遺棄の疑いで逮捕の父親、容疑認める `a > div.toppickup-item > div.toppickup-detail > h3.toppickup-title`

These are opportunities to improve keyboard navigation in your application.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Image elements have `[alt]` attributes

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

●Definition list items are wrapped in `<dl>` elements

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○ARIA IDs are unique

○No form fields have multiple labels

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Image elements do not have `[alt]` attributes that are redundant text.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

Trust and Safety

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source
cdn.webpush.jp/js/thirdparty/firebase.11.0.2.js line 10, col 41088

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Topics	anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js line 89, col 1182
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598477&cb=80738661154&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=ff25a80f-18a5-42e0-a330-8fdf3633e32d&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Ftop%2Fbillboard&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598478&cb=97920162339&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=ddcb266f-3c71-4373-9f2a-914f8d49aabd&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Ftop%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598479&cb=43752917832&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=f8faecf6-ad92-49e0-b77c-709d61bd7c17&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Fchannel%2Fbillboard&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598480&cb=46060287924&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=923ce8ee-e6c5-419c-b200-d9e78a65f519&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Fchannel%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598481&cb=97169137249&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=f442575d-2a0e-427b-bd4e-d3afdcbc445c&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Fchannel%2Frec2&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598482&cb=23805622472&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=3241dfe0-8c99-465c-bafc-f361bf3df581&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Farticle%2Fbillboard&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598483&cb=66949100428&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=eb845df5-3a49-4a37-b2bd-78b2cc8777f4&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Farticle%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598484&cb=68532302928&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=30340184-a35c-47d9-bc4c-bf7d1d7c6034&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Farticle%2Frec2&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Fbillboard&tagId=44216%3A1000299611&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Finread&tagId=44216%3A1000299504&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec1&tagId=44216%3A1000299608&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec2&tagId=44216%3A1000299607&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Fbillboard&tagId=44216%3A1000299505&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec1&tagId=44216%3A1000299612&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec2&tagId=44216%3A1000299609&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Fbillboard&tagId=44216%3A1000299503&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Frec1&tagId=44216%3A1000299610&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
mainichi.jp/	`Attestation check for Protected Audience on https://grid-bidder.criteo.com failed.`
mainichi.jp/	`Attestation check for Protected Audience on https://hbopenbid.pubmatic.com failed.`
mainichi.jp/	`Attestation check for Protected Audience on https://htlb.casalemedia.com failed.`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec2&tag...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Fbillboar...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Frec1&tagId=4...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec1&tag...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Fbillboard&ta...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec2&tag...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec1&tag...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Fbillboar...	`Failed to load resource: net::ERR_FAILED`
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Finread&t...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598477&cb=80738661154&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598478&cb=97920162339&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598484&cb=68532302928&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598483&cb=66949100428&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598479&cb=43752917832&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598482&cb=23805622472&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598481&cb=97169137249&char...	`Failed to load resource: net::ERR_FAILED`
/yie/ld/api/ad_call/v2?zoneid=1598480&cb=46060287924&char...	`Failed to load resource: net::ERR_FAILED`
api.rlcdn.com/api/identity/envelope?pid=13378	`Failed to load resource: the server responded with a status of 451 ()`
	ReferenceError: gtag is not defined at <anonymous>:1:1 at f.ba (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:239:229) at f.ka (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:238:427) at f.Y (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:236:407) at f.F (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:234:445) at f.write (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:234:70) at f (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:241:215) at e (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:240:279) at q.streams (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:242:30) at d (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:973:303)
www.googletagmanager.com/gtm.js?id=GTM-5M48NC line 231, col 503	`Uncaught [object Object]`

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

100

SEO

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

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