D — https://b.hatena.ne.jp | BeaverCheck Audit

Site Health

Score: 68 / 100

Based on 8 categories, 0 sections

Room to improve — your 4.9s load time is above Google's 2.5s 'Good' threshold.

Several missing protections leave your users and data exposed.

Major barriers for users with disabilities — up to 15% of your audience.

Well-optimized for search — your content is discoverable.

Solid infrastructure — fast server responses across the board.

Mostly compliant — a few items need attention.

Missing metadata means poor previews on social media and search.

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

Amazon Route 53 · 669 peers

You 68

Avg 72

At average

0 50 100

Better than 4% of Amazon Route 53 sites See full Amazon Route 53 benchmark →

Google Search Console · 2306 peers

You 68

Avg 73

At average

0 50 100

Better than 3% of Google Search Console sites See full Google Search Console benchmark →

Top Priorities (5)

Content-Security-Policy 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

Page weighs 7.1 MB (3.9 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

125 image-only link(s) without alt text

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

Accessibility › Link & Button Quality

2 button(s) with no accessible 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%2Fb.hatena.ne.jp)](https://beavercheck.com/results/1dd0b317-c17a-478c-8e93-ee33b43192d0)

HTML

<a href="https://beavercheck.com/results/1dd0b317-c17a-478c-8e93-ee33b43192d0"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fb.hatena.ne.jp" alt="BeaverCheck Score"></a>

Image URL

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

This badge auto-updates with your latest scan result.

What fixing these means

Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 4.9s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

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

Your LCP is 4.9s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

2 accessibility issues exclude users who rely on assistive technology.

Could reach Estimate based on resolving critical issues

Conversion Barriers

2 critical 7 warning

9 barrier(s) likely increasing bounce by ~31%.

Speed (2)

Page takes 4.9s to load

+12% bounce

Users abandon at ~3s — you're 2.4s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 1.2s

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (1)

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (1)

2 form field(s) without a label

+4% bounce

Screen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes

Fix: Associate every input with a visible <label for="…">; add autocomplete attributes

Content (2)

No Open Graph tags

+2% bounce

Links shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop

Fix: Add og:title, og:description, og:image, og:url to the page head

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Navigation (3)

97 link(s) with generic text ("click here", "read more")

+1% bounce

Screen-reader users navigating by link list see no context — and search engines can't infer relevance

Fix: Rewrite with descriptive phrases that identify the destination

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

1 broken link(s) on the page

+2% bounce

Clicks land on 404s — trust drops and the session often ends

Fix: Fix or remove the broken destinations surfaced on the Content tab

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

¥48,000 investment → ¥381,753/month returns + JPY 100,000,000 risk avoided

Payback period: < 1 month First-year ROI: +9444%

Investment

¥48,000

6h · 5 findings

Monthly returns

¥381,753 /mo

~¥4,581,030 / year

Conversions recovered ¥381,606
Bandwidth savings ¥147

Regulatory risk avoided

JPY 100,000,000

if kept compliant

APPI JPY 100,000,000

Payback period

0 12mo 24mo

¥8,000 — 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

¥48,000

6.0 developer hours at ¥8000/hr

Based on Japan rates (¥8000/hr)

Quick wins

¥8,000 2 fixes in ~60 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

¥8,333,480 / month at risk

~¥100,001,762 / year if left unfixed

Compliance Risk

¥100,000,000

APPI

No privacy policy link detected
APPI: JPY 100,000 – JPY 100,000,000
3 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

+1 more

Bandwidth Waste

¥147 /mo

12296.3 MB/mo × 11.940 JPY/GB

Optimize transfer: save ~1.2 MB per page load
Saves ¥147/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.

2.66 s

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

4.87 s

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

1.16 s

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

0.070

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

4.89 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.

23.60 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.

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.

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
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	cdn.ad-hatena.com/files/creatives/1975280704677741180/uci4jl8k51cd6qqa/image	389.1 KiB	350.0 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/51902d4a6157e075fbe7c2dcb6569b085bb5c998/ba...	286.6 KiB	262.6 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/308dcdfd415433a495c9a6104c21b0e7546d14b5/ba...	271.4 KiB	247.4 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/5467d2729f64fb2b32241bd267a228d765ffa82b/ba...	176.9 KiB	152.9 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/663943c1d8a98006bd8afef63de6acefb814a91a/ba...	132.3 KiB	108.3 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/20b811ffa039aa61cb44354c10365e2dced5401b/ba...	82.7 KiB	58.7 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/33a6f997fb2a1545453402d591462e3c2b57f715/ba...	78.0 KiB	54.0 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	cdn.ad-hatena.com/files/creatives/1975280704677741105/hm6rhx5u67d7080b/image	62.8 KiB	53.4 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/9120ce3a3602c6bddd3ff635a9ad01162e3b5d5b/ba...	70.9 KiB	50.5 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/32b4bb09aa767a57e5307fcf323c19fbd3e46330/ba...	54.8 KiB	30.8 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	cdn.ad-hatena.com/files/creatives/1975280704677741174/egr0nuc8qctwvog2/image	153.0 KiB	30.0 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/a68581d3e8cc95bcbd3d5f9a5f0cbc2a2dcceb5c/ba...	42.1 KiB	18.1 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/115ef29295cd16413ee121fe18da3bd05742b4b4/ba...	38.4 KiB	14.4 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/a401e8d0f2deff6d5bf9393f295f9751a09d278c/ba...	37.9 KiB	13.9 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/a49c944dcd2399f629595b4ec3dc14fd5c30f1e8/ba...	37.8 KiB	13.8 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/acdc8dd65c2dce19710fde26f10ef412a3f53766/ba...	33.0 KiB	9.0 KiB
div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon `div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon`	cdn.ad-hatena.com/files/creatives/1975280704677741105/hm6rhx5u67d7080b/logo	8.3 KiB	8.3 KiB
div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon `div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon`	/image/favicon2/bdac47ea8a276d1d2e2bd977e8d745a80756aa02/...	6.2 KiB	6.1 KiB
div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon `div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon`	/image/favicon2/fc6ba937f4fe39f0937c8d6a1a33004c81cb72a8/...	5.9 KiB	5.8 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/9649c6ff115c1069122d37d4647d6f9995f50051/ba...	28.6 KiB	4.6 KiB

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

value: no origins were preconnected

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

value: No additional origins are good candidates for preconnecting

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
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/css/v4/bookmark.css	69.7 KiB	1.1 s
/116a7de8864867a289b7ab7681242073a2bc7a2a/css/v4/bookmark...	4.2 KiB	153 ms

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
cdn.pool.st-hatena.com/valve/valve.js	900.0 s	141.9 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741180/uci4jl8k51cd6qqa/image	1209600.0 s	390.0 KiB
btloader.com/tag?o=5085785915654144&upapi=true	300.0 s	31.2 KiB
dmp.im-apps.net/sdk/log.js	10800.0 s	22.7 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741174/egr0nuc8qctwvog2/image	1209600.0 s	153.6 KiB
cdn.ad-hatena.com/js/river.js	0.0 ms	11.7 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
eus.rubiconproject.com/usync.js	26978.0 s	11.5 KiB
cdn.pool.st-hatena.com/valve/dmp.js	900.0 s	7.8 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741105/hm6rhx5u67d7080b/image	1209600.0 s	63.3 KiB
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	417752.0 s	12.3 KiB
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	417752.0 s	12.3 KiB
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	417752.0 s	12.3 KiB
dmp.im-apps.net/mtm/tracker.min.js	3600.0 s	1.2 KiB
dmp.im-apps.net/js/6604/0001/itm.js	2459.0 s	1.1 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741105/hm6rhx5u67d7080b/logo	1209600.0 s	8.8 KiB
/image/favicon2/b92ab43cb221e48fd66b8568b720d1bd8b76bd76/...	0.0 ms	685 B
cdn.audiencedata.net/js/v1/pageview.js?owner_id=6604&site_id=hatena	259200.0 s	2.6 KiB
i.socdm.com/sdk/js/adg-azs-container.js	444424.0 s	3.3 KiB
s.yimg.jp/images/listing/tool/yads/yads-timeline-ex.js	600.0 s	439 B
cdn.ad-hatena.com/files/creatives/1975280704677741174/egr0nuc8qctwvog2/logo	1209600.0 s	3.3 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741180/uci4jl8k51cd6qqa/logo	1209600.0 s	790 B

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

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: 1.1 s

URL	Time Spent
b.hatena.ne.jp/	1.2 s

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: 330 ms 63.7 KiB

URL	Transfer Size	Est Savings
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/css/v4/bookmark.css	69.1 KiB	63.7 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
b.hatena.ne.jp/	3.3 s	251 ms	5.4 ms
Unattributable	1.0 s	133 ms	0.0 ms
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js	740 ms	580 ms	79 ms
scripts.clarity.ms/0.8.59/clarity.js	483 ms	457 ms	8.3 ms
www.googletagmanager.com/gtm.js?id=GTM-5TDHQX	287 ms	232 ms	40 ms
www.googletagmanager.com/gtag/js?id=G-LZZ5Y9M58K&cx=c&gtm=4e64h1	283 ms	232 ms	47 ms
/gtag/destination?id=DC-10208769&l=itm_dl1&cx=c&gtm=4e64h1	212 ms	183 ms	27 ms
www.googletagmanager.com/gtm.js?id=GTM-PWRB9N&l=itm_dl1	212 ms	173 ms	34 ms
cdn.pool.st-hatena.com/valve/valve.js	190 ms	153 ms	34 ms
btloader.com/tag?o=5085785915654144&upapi=true	117 ms	105 ms	8.1 ms
www.google-analytics.com/analytics.js	88 ms	83 ms	4.3 ms
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	69 ms	59 ms	2.8 ms
cdn.ad-hatena.com/js/river.js	60 ms	52 ms	2.6 ms
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	57 ms	49 ms	3.1 ms
static.ads-twitter.com/uwt.js	51 ms	46 ms	4.1 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	3.1 s
Style & Layout	2.5 s
Other	1.2 s
Script Parsing & Compilation	329 ms
Rendering	293 ms
Parse HTML & CSS	152 ms
Garbage Collection	30 ms

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: 0.0 ms 565.1 KiB

URL	Transfer Size	Est Savings
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js	302.6 KiB	218.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-PWRB9N&l=itm_dl1	139.4 KiB	76.4 KiB
cdn.pool.st-hatena.com/valve/valve.js	141.4 KiB	66.3 KiB
/gtag/destination?id=DC-10208769&l=itm_dl1&cx=c&gtm=4e64h1	130.0 KiB	62.4 KiB
www.googletagmanager.com/gtag/js?id=G-LZZ5Y9M58K&cx=c&gtm=4e64h1	148.9 KiB	59.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-5TDHQX	142.5 KiB	58.9 KiB
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.star.js	29.6 KiB	22.8 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
cdn.ad-hatena.com/files/creatives/1975280704677741180/uci4jl8k51cd6qqa/image	390.0 KiB
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js	303.2 KiB
/image/square/51902d4a6157e075fbe7c2dcb6569b085bb5c998/ba...	287.2 KiB
/image/square/308dcdfd415433a495c9a6104c21b0e7546d14b5/ba...	272.0 KiB
/image/square/5467d2729f64fb2b32241bd267a228d765ffa82b/ba...	177.4 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741174/egr0nuc8qctwvog2/image	153.6 KiB
www.googletagmanager.com/gtag/js?id=G-LZZ5Y9M58K&cx=c&gtm=4e64h1	149.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-5TDHQX	142.9 KiB
cdn.pool.st-hatena.com/valve/valve.js	141.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-PWRB9N&l=itm_dl1	139.4 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
App Storeからダウンロード `ul > li.footer-list-item > a > img`	/116a7de8864867a289b7ab7681242073a2bc7a2a/images/v4/publi...
Google Playで手に入れよう `ul > li.footer-list-item > a > img`	/116a7de8864867a289b7ab7681242073a2bc7a2a/images/v4/publi...
はてなブックマークアプリ `a.link-app-banner-btn > div.link-app-banner-btn-detail > div.link-app-banner-icon > img`	b.hatena.ne.jp/images/v4/public/app/ic-ios.svg

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

●Layout shift culprits

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 6 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 290 ms

●Server Backend Latencies 330 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○LCP request discovery

○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.

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.fixed-header > div.drawer-menu > button.drawer-menu-button `body.fixed-header > div.drawer-menu > button.drawer-menu-button`

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
div#entrylist-ad-rectangle-middle > div#adg-slot-wrapper-entrylist-ad-rectangle-middle > div > iframe `div#entrylist-ad-rectangle-middle > div#adg-slot-wrapper-entrylist-ad-rectangle-middle > div > iframe`
div#entrylist-ad-rectangle-bottom > div#adg-slot-wrapper-entrylist-ad-rectangle-bottom > div > iframe `div#entrylist-ad-rectangle-bottom > div#adg-slot-wrapper-entrylist-ad-rectangle-bottom > div > iframe`
div#touch-footer-ad > div#adg-slot-wrapper-touch-footer-ad > div > iframe `div#touch-footer-ad > div#adg-slot-wrapper-touch-footer-ad > div > iframe`

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
header#global-header > div#header > h2#gh-logo > a `header#global-header > div#header > h2#gh-logo > a`

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
アプリで開く `body.fixed-header > div.link-app-banner > a.link-app-banner-btn > div.link-app-banner-btn-open`
ユーザー登録 `div.is-guest > ul.gh-service-menu > li > a.gh-guest-register`
今週のブクマ数ランキング（2026年4月第3週） `div.top-notification > a.top-notification-button > p.top-notification-text > span.top-notification-body`
人気 `div.navi-page > ul.touch-tab-menu-3column > li.is-current > a`
265 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
265 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
96 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
96 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
68 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
68 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
223 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
223 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
73 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
73 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
177 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
177 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
91 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
91 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
210 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
210 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
130 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
130 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
180 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
180 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
8 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
107 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
107 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
164 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
164 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
29 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
29 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
84 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
84 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
52 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
52 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
235 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
235 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
227 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
227 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
73 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
73 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
61 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
61 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
210 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
210 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
86 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
86 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
41 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
41 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
72 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
72 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
67 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
67 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
40 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
40 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
102 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
102 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
216 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
216 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
210 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
210 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
14 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
14 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
108 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
108 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
154 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
154 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
22 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
22 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
人気エントリーをすべて読む `div.entrylist-wrapper > section.entrylist-unit > p.entrylist-readmore > a`
あとで読むランキング `div#container > div.entrylist-wrapper > section.entrylist-unit > h2.entrylist-title`
週間 `div#container > div.entrylist-wrapper > section.entrylist-unit > label.entrylist-readlater-ranking-tabs-label`
1157 users `div.entrylist-readlater-ranking-body > div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable`
1157 `div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable > span`
773 users `div.entrylist-readlater-ranking-body > div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable`
773 `div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable > span`
763 users `div.entrylist-readlater-ranking-body > div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable`
763 `div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable > span`
738 users `div.entrylist-readlater-ranking-body > div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable`
738 `div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable > span`
713 users `div.entrylist-readlater-ranking-body > div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable`
713 `div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable > span`
653 users `div.entrylist-readlater-ranking-body > div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable`
653 `div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-users-bottom > a.js-keyboard-entry-page-openable > span`
おすすめ特集「セキュリティ」 `div#container > div.entrylist-wrapper > section.entrylist-unit > h2.entrylist-title`
139 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
139 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
125 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
125 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
183 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
183 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
269 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
269 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
157 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
157 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
228 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
228 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
もっと読む `div.entrylist-wrapper > section.entrylist-unit > p.entrylist-readmore > a`

These are opportunities to improve the legibility of your content.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
265 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.bengo4.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
96 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
shonenjumpplus.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
68 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
itrend.kikkakeagent.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
223 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
news.web.nhk `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
73 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.nintendo.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
177 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
av.watch.impress.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
91 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
bunshun.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
210 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.cnn.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
130 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
to-ti.in `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
180 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
anond.hatelabo.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
8 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
soredoko.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
107 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.tokyo-np.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
164 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.famitsu.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
29 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.47news.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
84 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
togetter.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
52 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.bbc.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
235 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.ben54.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
227 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
note.com/suthio `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
73 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
posfie.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
61 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
games.toei.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
210 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
rookie.shonenjump.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
86 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
forest.watch.impress.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
41 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
dragons.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
72 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
type.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
67 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.apple.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
40 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
touda.tohoku.ac.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
102 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
togetter.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
216 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
togetter.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
210 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
note.com/kaze3desu `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
14 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
ebisumart.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
108 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.sankei.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
154 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.itmedia.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
22 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
note.com/the_grimm `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
139 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
levtech.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
125 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.docswell.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
183 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
www.jcp.or.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
269 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
qiita.com/miruky `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
157 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
atmarkit.itmedia.co.jp `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`
228 users `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
forbesjapan.com `div.entrylist-contents > div.entrylist-contents-main > p.entrylist-contents-domain > a`

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html `html`

These items highlight common accessibility best practices.

○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>`

●`[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 use only permitted ARIA attributes

●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.

●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

●Heading elements appear in a sequentially-descending order

●All heading elements contain content.

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

○Deprecated ARIA roles were not used

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

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

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

○`[role]`s are contained by their required parent element

○`[role]` values are valid

○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

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

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

○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

○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>`.

○Uses ARIA roles only on compatible elements

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

○Elements with visible text labels have matching accessible names.

○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

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	cdn.pool.st-hatena.com/valve/valve.js line 1, col 336

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
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js line 325, col 250841
b.hatena.ne.jp/	`Access to XMLHttpRequest at 'https://b.im-apps.net/bh.json?d=b.hatena.ne.jp' from origin 'https://b.hatena.ne.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
b.hatena.ne.jp/	`Event`
b.hatena.ne.jp/	`Event`
b.im-apps.net/bh.json?d=b.hatena.ne.jp	`Failed to load resource: net::ERR_FAILED`
b.hatena.ne.jp/api/my/profile	`Failed to load resource: the server responded with a status of 403 ()`
b.hatena.ne.jp/api/my/profile	`Failed to load resource: the server responded with a status of 403 ()`
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.river.js line 122, col 66012	`Uncaught (in promise) TypeError: this.watchCallback is not a function`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js
cdn.ad-hatena.com/js/river.js	cdn.ad-hatena.com/js/river.js.map

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification 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

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Detected JavaScript libraries

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.

1.02 s

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

1.32 s

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

32 ms

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

0.000

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

1.14 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.

4.26 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 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:151.727 source:map[type:text value:[unattributed]]]]

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
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/51902d4a6157e075fbe7c2dcb6569b085bb5c998/ba...	286.6 KiB	262.6 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/5467d2729f64fb2b32241bd267a228d765ffa82b/ba...	176.9 KiB	152.9 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/caf465803aa189c4ee1c70a1bca4c65dda320057/ba...	142.1 KiB	118.1 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/33a7593f3fe5911883ea32a9eae5c1cfc0ea1e59/ba...	133.3 KiB	109.3 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/663943c1d8a98006bd8afef63de6acefb814a91a/ba...	132.3 KiB	108.3 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/4f69813b036f83bd53cf4a08dbf534f6528c8707/ba...	106.5 KiB	82.5 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/82b2a229f99f10ed38e087c4c904289e4766413d/ba...	92.6 KiB	68.6 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/1a498ede45416bb99371def2df24b74bebe528e1/ba...	82.1 KiB	58.1 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/25bb7af47ff6f5f3875b8a776cbc538505e48baf/ba...	68.8 KiB	44.8 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/32b4bb09aa767a57e5307fcf323c19fbd3e46330/ba...	54.8 KiB	30.8 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	cdn.ad-hatena.com/files/creatives/1975280704677741173/l6eh01zv0mv19op5/image	153.0 KiB	30.0 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/d6b65d8ff2f8fe64c92937f91dc1e1c9d2506618/ba...	52.0 KiB	28.0 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/5fffbf869e938d9523796111355343bd9958637c/ba...	47.8 KiB	23.8 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/8fc81b6002e26bd9e4f7644867dbc205f0e79a1b/ba...	47.7 KiB	23.7 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/a68581d3e8cc95bcbd3d5f9a5f0cbc2a2dcceb5c/ba...	42.1 KiB	18.1 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/029075e54a2090d4aee71be6c035c80ffc94321c/ba...	40.1 KiB	16.1 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/d1c3b437e718a1e07bb8f7c164193d197373b020/ba...	38.7 KiB	14.7 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/115ef29295cd16413ee121fe18da3bd05742b4b4/ba...	38.4 KiB	14.4 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/a401e8d0f2deff6d5bf9393f295f9751a09d278c/ba...	37.9 KiB	13.9 KiB
div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon `div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon`	/image/favicon2/b0e2ba843a46127e55cd258dfc9f44d2d76ebd47/...	9.6 KiB	9.6 KiB
div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon `div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon`	/image/favicon2/768ff9c94aeefc3f0f5456d1fe1fa21ec0572db8/...	8.5 KiB	8.5 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/48d5e25b5840a42ecb7b2c1506aa451d44ae7c46/ba...	31.9 KiB	7.9 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/7870f01e037a0d693eb6108d46bf3070eb1fcd87/ba...	31.3 KiB	7.3 KiB
div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-domain > a > img.favicon `div.entrylist-readlater-ranking-body-inner > p.entrylist-readlater-ranking-domain > a > img.favicon`	/image/favicon2/b8ee272b45b15873bd697f2237e76d12b18ed6d7/...	6.1 KiB	6.0 KiB
div.entrylist-contents-body > a > p.entrylist-contents-thumb > span `div.entrylist-contents-body > a > p.entrylist-contents-thumb > span`	/image/square/b412d6c02bb827249311f9bca74d45c5aff88316/ba...	29.7 KiB	5.7 KiB
div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon `div.entrylist-contents-main > p.entrylist-contents-domain > a > img.favicon`	/image/favicon2/c257abc21f47a6806baa531897455c4b307b6aff/...	5.5 KiB	5.5 KiB
週刊はてなブログ `div#container > div.entrylist-wrapper > section#btop-editor2 > h2`	/116a7de8864867a289b7ab7681242073a2bc7a2a/images/v4/publi...	4.2 KiB	4.1 KiB

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

value: no origins were preconnected

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
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/css/v4/bookmark.css	69.7 KiB	323 ms
/116a7de8864867a289b7ab7681242073a2bc7a2a/css/v4/bookmark...	4.2 KiB

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
cdn.pool.st-hatena.com/valve/valve.js	900.0 s	141.9 KiB
btloader.com/tag?o=5085785915654144&upapi=true	300.0 s	31.2 KiB
dmp.im-apps.net/sdk/log.js	10800.0 s	22.7 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741173/l6eh01zv0mv19op5/image	1209600.0 s	153.6 KiB
cdn.ad-hatena.com/js/river.js	0.0 ms	11.7 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
eus.rubiconproject.com/usync.js	26953.0 s	11.5 KiB
cdn.pool.st-hatena.com/valve/dmp.js	900.0 s	7.8 KiB
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	417727.0 s	12.3 KiB
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	417727.0 s	12.3 KiB
/sdk/js/adg-script-loader.js?displayid=1&async=true&flexi...	417727.0 s	12.3 KiB
dmp.im-apps.net/mtm/tracker.min.js	3600.0 s	1.2 KiB
dmp.im-apps.net/js/6604/0001/itm.js	2434.0 s	1.1 KiB
/image/favicon2/b92ab43cb221e48fd66b8568b720d1bd8b76bd76/...	0.0 ms	686 B
/image/favicon2/751f49e4d934d6e97315ab72cb1d03d97dcd36e7/...	0.0 ms	675 B
cdn.audiencedata.net/js/v1/pageview.js?owner_id=6604&site_id=hatena	259200.0 s	2.6 KiB
i.socdm.com/sdk/js/adg-azs-container.js	444398.0 s	3.3 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741173/l6eh01zv0mv19op5/logo	1209600.0 s	3.3 KiB

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

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 63.7 KiB

URL	Transfer Size	Est Savings
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/css/v4/bookmark.css	69.1 KiB	63.7 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: 0.0 ms 565.9 KiB

URL	Transfer Size	Est Savings
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js	302.6 KiB	221.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-PWRB9N&l=itm_dl1	139.4 KiB	76.4 KiB
cdn.pool.st-hatena.com/valve/valve.js	141.4 KiB	66.4 KiB
/gtag/destination?id=DC-10208769&l=itm_dl1&cx=c&gtm=4e64h1	130.0 KiB	62.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-5TDHQX	142.5 KiB	58.7 KiB
www.googletagmanager.com/gtag/js?id=G-LZZ5Y9M58K&cx=c&gtm=4e64h1	148.9 KiB	57.7 KiB
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.star.js	29.6 KiB	22.8 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
/image/square/22d2294e3a070fd2b55f2f307151e7f02ef63876/ba...	304.8 KiB
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js	303.2 KiB
/image/square/51902d4a6157e075fbe7c2dcb6569b085bb5c998/ba...	287.2 KiB
/image/square/e45f7bc530fbcdda9dff7cc766f55fffde84630f/ba...	252.9 KiB
/image/square/61f4748e561dc31f805e27b1d108300ff63fbbc6/ba...	243.3 KiB
/image/square/5467d2729f64fb2b32241bd267a228d765ffa82b/ba...	177.4 KiB
/image/square/5e605ca1b0e10eb25f194f22cdf34ebe5238ee61/ba...	169.8 KiB
cdn.ad-hatena.com/files/creatives/1975280704677741173/l6eh01zv0mv19op5/image	153.6 KiB
www.googletagmanager.com/gtag/js?id=G-LZZ5Y9M58K&cx=c&gtm=4e64h1	149.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-5TDHQX	142.9 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
App Storeからダウンロード `ul > li.footer-list-item > a > img`	/116a7de8864867a289b7ab7681242073a2bc7a2a/images/v4/publi...
Google Playで手に入れよう `ul > li.footer-list-item > a > img`	/116a7de8864867a289b7ab7681242073a2bc7a2a/images/v4/publi...

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

●Max Potential First Input Delay 70 ms

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 8 user timings

●JavaScript execution time 0.5 s

●Minimizes main-thread work 1.9 s

●Avoid long main-thread tasks 5 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 250 ms

●Server Backend Latencies 310 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 20 ms

○INP breakdown

○LCP request discovery

○Avoid non-composited animations

○Avoid large layout shifts

Accessibility

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
総合 `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
一般 `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
世の中 `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
政治と経済 `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
暮らし `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
学び `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
テクノロジー `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
おもしろ `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
エンタメ `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
アニメとゲーム `li.js-navi-category-item > div.navi-link > a.navi-link-text > span`
おすすめ `ul.navi-body > li.recommend > a.navi-link-text > span`
セキュリティ `ul.navi-body > li.recommend > p.pickup > a`
ランキング `div.top-notification > a.top-notification-button > p.top-notification-text > span.top-notification-tag`
今週のはてなブックマーク数ランキング（2026年4月第3週） `div.top-notification > a.top-notification-button > p.top-notification-text > span.top-notification-body`
265 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
96 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
96 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
アニメとゲーム `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
223 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
73 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
73 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
アニメとゲーム `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
177 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
177 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
エンタメ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
91 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
91 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
エンタメ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
210 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
政治と経済 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
130 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
180 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
週間 `div#container > div.entrylist-wrapper > section#btop-ranking > label.entrylist-readlater-ranking-tabs-label`
月間 `div#container > div.entrylist-wrapper > section#btop-ranking > label.entrylist-readlater-ranking-tabs-label`
1157USERS `ul.entrylist-readlater-ranking-items > li.entrylist-readlater-ranking-item > a.entrylist-readlater-ranking-head > span.entrylist-readlater-ranking-users`
1157 `li.entrylist-readlater-ranking-item > a.entrylist-readlater-ranking-head > span.entrylist-readlater-ranking-users > span`
773USERS `ul.entrylist-readlater-ranking-items > li.entrylist-readlater-ranking-item > a.entrylist-readlater-ranking-head > span.entrylist-readlater-ranking-users`
773 `li.entrylist-readlater-ranking-item > a.entrylist-readlater-ranking-head > span.entrylist-readlater-ranking-users > span`
763USERS `ul.entrylist-readlater-ranking-items > li.entrylist-readlater-ranking-item > a.entrylist-readlater-ranking-head > span.entrylist-readlater-ranking-users`
763 `li.entrylist-readlater-ranking-item > a.entrylist-readlater-ranking-head > span.entrylist-readlater-ranking-users > span`
9 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
15 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
15 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
19 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
19 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
6 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
20 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
22 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
22 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
34 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
8 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
広告 `div.entrylist-contents > div.entrylist-contents-main > ul.entrylist-contents-meta > li.pr`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
351 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
30 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
51 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
158 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
67 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
19 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
177 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
40 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
157 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
139 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
64 `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entrylist-3column-users-number`
USERS `div > span.entrylist-3column-users > a.js-keyboard-entry-page-openable > span.entry-users-text`
139 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
139 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
409 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
303 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
132 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
102 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
225 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
64 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
64 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
68 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
学び `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
アニメとゲーム `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
10 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
10 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
アニメとゲーム `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
17 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
28 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
29 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
7 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
政治と経済 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
6 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
政治と経済 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
29 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
政治と経済 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
26 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
3 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
180 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
暮らし `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
学び `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
84 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
学び `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
40 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
学び `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
19 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
19 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
11 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
11 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
13 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
13 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
おもしろ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
12 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
12 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
おもしろ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
101 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
101 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
おもしろ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
6 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
エンタメ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
6 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
エンタメ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
4 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
エンタメ `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
アニメとゲーム `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
10 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
10 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
アニメとゲーム `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
アニメとゲーム `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
8 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
世の中 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
15 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
15 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
240 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
政治と経済 `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
19 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
19 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
46 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
46 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
64 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
64 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
19 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
19 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
7 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
26 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
26 `div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable > span`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
5 USERS `div.entrylist-contents > div.entrylist-contents-main > span.entrylist-contents-users > a.js-keyboard-entry-page-openable`
テクノロジー `div.entrylist-contents-main > ul.entrylist-contents-meta > li.entrylist-contents-category > a`
世の中 `li.cat-social > div.entrylist-issue-contents > p.entrylist-contents-category > a`
政治と経済 `li.cat-economics > div.entrylist-issue-contents > p.entrylist-contents-category > a`
暮らし `li.cat-life > div.entrylist-issue-contents > p.entrylist-contents-category > a`
学び `li.cat-knowledge > div.entrylist-issue-contents > p.entrylist-contents-category > a`
テクノロジー `li.cat-it > div.entrylist-issue-contents > p.entrylist-contents-category > a`
おもしろ `li.cat-fun > div.entrylist-issue-contents > p.entrylist-contents-category > a`
エンタメ `li.cat-entertainment > div.entrylist-issue-contents > p.entrylist-contents-category > a`
アニメとゲーム `li.cat-game > div.entrylist-issue-contents > p.entrylist-contents-category > a`
総合 `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.hotentry`
一般 `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.general`
世の中 `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-social`
政治と経済 `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-economics`
暮らし `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-life`
学び `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-knowledge`
テクノロジー `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-it`
エンタメ `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-entertainment`
アニメとゲーム `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-game`
おもしろ `div.footer-list-wrapper > ul.footer-list > li.footer-list-item > a.cat-fun`

These are opportunities to improve the legibility of your content.

Names and labels

Adding discernable and accessible text to input buttons may help screen reader users understand the purpose of the input button. Learn more about input buttons.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#header > div.is-guest > form.gh-searchbox > input.gh-search-button `div#header > div.is-guest > form.gh-searchbox > input.gh-search-button`
div#container > div.branding > form.branding-searchbox > input.search-button `div#container > div.branding > form.branding-searchbox > input.search-button`

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
div#entrylist-ad-right-top > div#adg-slot-wrapper-entrylist-ad-right-top > div > iframe `div#entrylist-ad-right-top > div#adg-slot-wrapper-entrylist-ad-right-top > div > iframe`
div#entrylist-ad-banner-middle > div#adg-slot-wrapper-entrylist-ad-banner-middle > div > iframe `div#entrylist-ad-banner-middle > div#adg-slot-wrapper-entrylist-ad-banner-middle > div > iframe`
div#entrylist-ad-banner-bottom > div#adg-slot-wrapper-entrylist-ad-banner-bottom > div > iframe `div#entrylist-ad-banner-bottom > div#adg-slot-wrapper-entrylist-ad-banner-bottom > div > iframe`

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
header#global-header > div#header > h2#gh-logo > a `header#global-header > div#header > h2#gh-logo > a`
div.branding > div.branding-header > h1.branding-title > a `div.branding > div.branding-header > h1.branding-title > a`
li.cat-social > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-social > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`
li.cat-economics > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-economics > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`
li.cat-life > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-life > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`
li.cat-knowledge > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-knowledge > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`
li.cat-it > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-it > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`
li.cat-fun > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-fun > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`
li.cat-entertainment > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-entertainment > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`
li.cat-game > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable `li.cat-game > div.entrylist-issue-contents > p.entrylist-issue-thumb > a.js-keyboard-openable`

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.

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
「自衛官が制服を着てソープで働いていいのか」国歌斉唱めぐり記者質問、幕僚長の回答にツッコミも - 弁護士ドットコムニュース `li.cat-social > div.entrylist-contents > div.entrylist-contents-main > h3.entrylist-contents-title`

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#header > div.is-guest > form.gh-searchbox > input.gh-search-button `div#header > div.is-guest > form.gh-searchbox > input.gh-search-button`

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html `html`

These items highlight common accessibility best practices.

○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

●Buttons have an accessible name

●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 use only permitted ARIA attributes

●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.

●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

●Deprecated ARIA roles were not used

●All heading elements contain content.

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

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

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

○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.

○`[role]`s are contained by their required parent element

○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

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

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

○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 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>`.

○Uses ARIA roles only on compatible elements

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

○Elements with visible text labels have matching accessible names.

○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

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	cdn.pool.st-hatena.com/valve/valve.js line 1, col 336

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
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js line 325, col 250841
b.hatena.ne.jp/	`Access to XMLHttpRequest at 'https://b.im-apps.net/bh.json?d=b.hatena.ne.jp' from origin 'https://b.hatena.ne.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
b.im-apps.net/bh.json?d=b.hatena.ne.jp	`Failed to load resource: net::ERR_FAILED`
b.hatena.ne.jp/api/my/profile	`Failed to load resource: the server responded with a status of 403 ()`
b.hatena.ne.jp/api/my/profile	`Failed to load resource: the server responded with a status of 403 ()`
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.river.js line 122, col 66012	`Uncaught (in promise) TypeError: this.watchCallback is not a function`
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.river.js line 122, col 66012	`Uncaught (in promise) TypeError: this.watchCallback is not a function`
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.river.js line 122, col 66012	`Uncaught (in promise) TypeError: this.watchCallback is not a function`

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
b.st-hatena.com/116a7de8864867a289b7ab7681242073a2bc7a2a/js/v4/bookmark.js
cdn.ad-hatena.com/js/river.js	cdn.ad-hatena.com/js/river.js.map

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification 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

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Detected JavaScript libraries

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`

Results for https://b.hatena.ne.jp

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (2)

Trust (1)

Usability (1)

Content (2)

Navigation (3)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Payback period

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Names and labels

Contrast

Best practices

Best Practices

General

SEO

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Names and labels

Navigation

Best practices

Best Practices

General

SEO

Keyboard Shortcuts