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

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Good foundation, but a few gaps could be exploited.

Several issues make your site difficult for assistive technology users.

Solid SEO basics — a few optimizations could boost rankings.

Good server performance with room for optimization.

Several regulatory requirements are not yet met.

Missing metadata means poor previews on social media and search.

Reasonable footprint with room for optimization.

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 · 975 peers

You 70

Avg 72

At average

0 50 100

Better than 14% of Amazon Route 53 sites See full Amazon Route 53 benchmark →

Google Search Console · 3592 peers

You 70

Avg 73

At average

0 50 100

Better than 14% 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

HSTS header is missing

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

Security › Security Headers

No Content-Security-Policy header found

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

Security › Content Security Policy

No <main> landmark found

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

Accessibility › Landmark Structure

96 third-party resources (100% of weight)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Inventory

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%2Fameba.jp)](https://beavercheck.com/results/4f320274-94f8-42c1-8742-b1e15a0a88aa)

HTML

<a href="https://beavercheck.com/results/4f320274-94f8-42c1-8742-b1e15a0a88aa"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fameba.jp" alt="BeaverCheck Score"></a>

Image URL

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

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 10.1s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Addressing the critical issues below would have the most immediate impact on your user trust.

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

1 accessibility issue excludes users who rely on assistive technology.

Your LCP is 10.1s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

Conversion Barriers

3 critical 6 warning

9 barrier(s) likely increasing bounce by ~38%.

Speed (2)

Page takes 10.1s to load

+12% bounce

Users abandon at ~3s — you're 7.6s over the 2.5s threshold

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

Page feels frozen for 1.0s

+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 (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

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)

No viewport meta tag

+15% bounce

Mobile browsers render at desktop width and shrink — text unreadable, tap targets miniature

Fix: Add <meta name="viewport" content="width=device-width, initial-scale=1">

Content (3)

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, …)

Thin content

+3% bounce

Under 300 words — visitors bounce looking for substance, search engines rank competitors first

Fix: Add a substantive FAQ, product detail, or case-study section

Navigation (1)

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

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

Return on Investment

¥40,000 investment → ¥561,473/month returns + JPY 100,000,000 risk avoided

Payback period: < 1 month First-year ROI: +16744%

Investment

¥40,000

5h · 5 findings

Monthly returns

¥561,473 /mo

~¥6,737,676 / year

Conversions recovered ¥561,369
Bandwidth savings ¥104

Regulatory risk avoided

JPY 100,000,000

if kept compliant

APPI JPY 100,000,000

Payback period

0 12mo 24mo

¥12,000 — 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

¥40,000

5.0 developer hours at ¥8000/hr

Based on Japan rates (¥8000/hr)

Quick wins

¥12,000 3 fixes in ~90 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

¥8,333,438 / month at risk

~¥100,001,253 / year if left unfixed

Compliance Risk

¥100,000,000

APPI

No privacy policy link detected
APPI: JPY 100,000 – JPY 100,000,000
Trackers detected but no cookie policy found
APPI: JPY 100,000 – JPY 100,000,000
Trackers detected but no privacy policy found
APPI: JPY 100,000 – JPY 100,000,000

+1 more

Bandwidth Waste

¥104 /mo

8747.1 MB/mo × 11.940 JPY/GB

Optimize transfer: save ~875 KB per page load
Saves ¥104/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 4 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

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.

3.39 s

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

10.11 s

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

1.04 s

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

0.009

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

13.42 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.

20.25 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

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

Learn more ▾

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

Source: Google web.dev / Lighthouse

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
www.ameba.jp/assets/vendor-fe2b1fc60d08d682f5b7.js	3600.0 s	128.4 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_2.png	3600.0 s	111.6 KiB
www.ameba.jp/font/ameba_symbols_v3/v1.30/amebasymbolsv3.woff	3600.0 s	53.5 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_1.png	3600.0 s	45.8 KiB
static-lifestyle.ameba.jp/micres/owlas/g/w42pj7x9?r=640	864000.0 s	356.9 KiB
stat.amebame.com/pub/ads/adx/93da2ecd-8c79-4bf0-8e61-329aafab5394.png?size=640	86400.0 s	79.1 KiB
static-lifestyle.ameba.jp/micres/owlas/g/1vmp8y2v?r=640	864000.0 s	310.3 KiB
www.ameba.jp/assets/app_shell-e9072ec466e4c175e9cf.js	3600.0 s	37.1 KiB
stat.amebame.com/pub/ads/adx/186c1e54-200f-4dca-a729-f516a42cf5d6.png?size=640	86400.0 s	56.3 KiB
www.ameba.jp/images/sprites/spritesheet-1750990985644.png	3600.0 s	27.3 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_3.png	3600.0 s	25.5 KiB
www.ameba.jp/images/organizers/OnBoardingContents/usage_1.png	3600.0 s	20.5 KiB
stat.amebame.com/pub/ads/adx/e79615bd-10d1-46d4-bc13-cdcb0e428df1.jpg?size=640	86400.0 s	36.4 KiB
www.ameba.jp/images/organizers/OnBoardingContents/usage_2.png	3600.0 s	17.5 KiB
stat.amebame.com/pub/ads/adx/4c9829f4-c269-4bb3-ad2f-0556a40e5708.jpg?size=640	86400.0 s	31.7 KiB
www.ameba.jp/assets/misc-14a29d5d1513a571fec1.js	3600.0 s	14.0 KiB
static-lifestyle.ameba.jp/micres/owlas/g/e4l6mkz4?r=640	864000.0 s	109.2 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
static-lifestyle.ameba.jp/micres/owlas/g/p968668v?r=640	864000.0 s	69.9 KiB
static-lifestyle.ameba.jp/micres/owlas/g/n93j6w04?r=640	864000.0 s	65.5 KiB
www.ameba.jp/assets/misc-fa30cdde420449df8799.js	3600.0 s	7.8 KiB
www.ameba.jp/assets/misc-3e2203f8026bdb56c20e.js	3600.0 s	7.1 KiB
static-lifestyle.ameba.jp/micres/owlas/g/e9x0xyk9?r=640	864000.0 s	53.9 KiB
www.ameba.jp/assets/top-4e8d04c46d2c28b5bc83e11f326ddb09.css	3600.0 s	6.1 KiB
www.ameba.jp/assets/misc-291772a82c81cd24dd27.js	3600.0 s	6.0 KiB
www.ameba.jp/images/common/logo.png	3600.0 s	5.6 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/choice_logo.svg	3600.0 s	3.1 KiB
/3vKPuLD15Mr4UdVMJzZdmCMukZwawgx1zPE5vsTM1iUEnp4dli9mtSE_...	86400.0 s	3.1 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/vehicles.svg	3600.0 s	1.3 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/beauty-health.svg	3600.0 s	1.2 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/sports-outdoors.svg	3600.0 s	1.2 KiB
/images/organizers/AmebaChoiceContents/investments-asset-...	3600.0 s	1.1 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/gifts.svg	3600.0 s	1.1 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/services.svg	3600.0 s	1.0 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/home-appliances.svg	3600.0 s	999 B
www.ameba.jp/images/organizers/AmebaChoiceContents/music-movies-video.svg	3600.0 s	935 B
www.ameba.jp/images/organizers/AmebaChoiceContents/food-beverages.svg	3600.0 s	890 B
www.ameba.jp/images/organizers/AmebaChoiceContents/apps.svg	3600.0 s	889 B
www.ameba.jp/images/organizers/AmebaChoiceContents/credit-cards-cashless.svg	3600.0 s	882 B
www.ameba.jp/images/organizers/AmebaChoiceContents/loans-borrowing.svg	3600.0 s	840 B
www.ameba.jp/images/organizers/AmebaChoiceContents/household-goods.svg	3600.0 s	750 B
www.ameba.jp/images/organizers/AmebaChoiceContents/fashion.svg	3600.0 s	674 B
www.ameba.jp/images/organizers/AmebaChoiceContents/hobbies.svg	3600.0 s	669 B
www.ameba.jp/images/organizers/AmebaChoiceContents/books.svg	3600.0 s	641 B
www.ameba.jp/images/organizers/AmebaChoiceContents/gadgets-communication.svg	3600.0 s	507 B
sy.ameba.jp/sync/?rtn=true	0.0 ms	108 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	40 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[reflowTime:31.682 source:map[column:73398 line:2 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js urlProvider:network]]]

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

items: [map[reflowTime:31.682 source:map[column:31518 line:1 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js urlProvider:network]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
【利用者247人の声で選ぶ】ウォーターサーバーおすすめ厳選7機種｜2026年最新の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/w42pj7x9?r=640	356.5 KiB	348.1 KiB
ふるさと納税サイトのおすすめランキング25選！最新のキャンペーン情報や特徴別おすすめサイトも紹介の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/1vmp8y2v?r=640	310.0 KiB	301.6 KiB
おすすめカードローンをランキングで紹介！人気の35社を一覧で徹底比較の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/e4l6mkz4?r=640	108.9 KiB	100.4 KiB
div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image `div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image`	www.ameba.jp/images/organizers/OnBoardingContents/service_2.png	111.5 KiB	91.6 KiB
【2026年】マッチングアプリおすすめはこれ！286人に聞いた人気アプリランキングの画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/p968668v?r=640	69.6 KiB	61.1 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/93da2ecd-8c79-4bf0-8e61-329aafab5394.png?size=640	78.6 KiB	58.1 KiB
転職エージェントおすすめ21選を徹底比較！特化型のサービスも紹介！メリットや注意点も解説の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/n93j6w04?r=640	65.2 KiB	56.8 KiB
クレジットカードのおすすめ人気ランキング40選！究極の1枚の選び方の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/e9x0xyk9?r=640	53.8 KiB	45.3 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/186c1e54-200f-4dca-a729-f516a42cf5d6.png?size=640	56.0 KiB	35.4 KiB
div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image `div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image`	www.ameba.jp/images/organizers/OnBoardingContents/service_1.png	45.5 KiB	30.1 KiB
li.TopServiceMenu_List_Item > a.TapContent > div.TopServiceMenu_List_Item_Icon_Container > i.Sprite `li.TopServiceMenu_List_Item > a.TapContent > div.TopServiceMenu_List_Item_Icon_Container > i.Sprite`	www.ameba.jp/images/sprites/spritesheet-1750990985644.png	27.2 KiB	24.6 KiB
div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image `div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image`	www.ameba.jp/images/organizers/OnBoardingContents/service_3.png	25.2 KiB	16.7 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/e79615bd-10d1-46d4-bc13-cdcb0e428df1.jpg?size=640	36.1 KiB	15.6 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/4c9829f4-c269-4bb3-ad2f-0556a40e5708.jpg?size=640	31.4 KiB	13.0 KiB
div.TopOnBoarding > div.OnBoardingContentsHowToUse > div.OnBoardingContentsHowToUse_Inner > img.OnBoardingContentsHowToUse_Image2 `div.TopOnBoarding > div.OnBoardingContentsHowToUse > div.OnBoardingContentsHowToUse_Inner > img.OnBoardingContentsHowToUse_Image2`	www.ameba.jp/images/organizers/OnBoardingContents/usage_2.png	17.4 KiB	12.9 KiB
Ameba(アメーバ) `header.SpHeader > div.MenuHeader > h1.MenuHeader_Title > img`	www.ameba.jp/images/common/logo.png	5.5 KiB	4.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[duration:4740.289000976562 label:Time to first byte subpart:timeToFirstByte] map[duration:284.7699990234375 label:Resource load delay subpart:resourceLoadDelay] map[duration:72.073 label:Resource load duration subpart:resourceLoadDuration] map[duration:64.248 label:Element render delay subpart:elementRenderDelay]]

lhId: page-12-IMG

nodeLabel: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

path: 1,HTML,1,BODY,0,DIV,0,DIV,1,DIV,1,MAIN,0,DIV,0,DIV,0,DIV,0,SECTION,1,UL,5,LI,0,A,0,DIV,0,IMG

selector: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

snippet: <img class="LazyImage OnBoardingContentsCarouselItem_Image Thumbnail -ready" src="https://stat.amebame.com/pub/ads/adx/e79615bd-10d1-46d4-bc13-cdcb0e428df1.…" alt="">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-12-IMG

nodeLabel: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

path: 1,HTML,1,BODY,0,DIV,0,DIV,1,DIV,1,MAIN,0,DIV,0,DIV,0,DIV,0,SECTION,1,UL,5,LI,0,A,0,DIV,0,IMG

selector: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

snippet: <img class="LazyImage OnBoardingContentsCarouselItem_Image Thumbnail -ready" src="https://stat.amebame.com/pub/ads/adx/e79615bd-10d1-46d4-bc13-cdcb0e428df1.…" alt="">

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

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
www.ameba.jp/assets/top-4e8d04c46d2c28b5bc83e11f326ddb09.css	6.1 KiB

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 3.1 s

URL	Time Spent
ameba.jp/	751 ms
www.ameba.jp/	756 ms
www.ameba.jp/auth/login?prompt=none	151 ms
/connect/authorize?client_id=db98bf8b687fc3334c4b8cde9116...	1.4 s
/auth/callback?error=login_required&state=8xUFw4XeICXha25...	0.0 ms
www.ameba.jp/loginCheck.do?isAuthenticated=false	0.0 ms
www.ameba.jp/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.0 s

URL	Time Spent
www.ameba.jp/	1.1 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 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: 750 ms 506.5 KiB

URL	Transfer Size	Est Savings
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB	132.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-N49WWL	163.6 KiB	74.3 KiB
www.googletagmanager.com/gtag/js?id=G-7BCS07G3H9&cx=c&gtm=4e64h1	157.1 KiB	65.8 KiB
www.googletagmanager.com/gtag/js?id=G-3028DJK3ZG&cx=c&gtm=4e64h1	157.0 KiB	64.9 KiB
www.googletagmanager.com/gtag/destination?id=AW-608763171&cx=c&gtm=4e64h1	144.5 KiB	60.8 KiB
www.ameba.jp/assets/vendor-fe2b1fc60d08d682f5b7.js	128.3 KiB	51.6 KiB
fundingchoicesmessages.google.com/i/7765?ers=3	68.8 KiB	36.4 KiB
www.ameba.jp/assets/app_shell-e9072ec466e4c175e9cf.js	36.7 KiB	20.1 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
www.ameba.jp/	935 ms	19 ms	5.9 ms
Unattributable	642 ms	22 ms	0.0 ms
/f/AGSKWxXizRd5pdTjiKcVMGDhr4tawR19pTIIhZr206ZXgPuqiFDFSa...	505 ms	250 ms	36 ms
www.ameba.jp/assets/vendor-fe2b1fc60d08d682f5b7.js	480 ms	389 ms	29 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	249 ms	182 ms	60 ms
scripts.clarity.ms/0.8.59/clarity.js	222 ms	184 ms	6.2 ms
www.googletagmanager.com/gtag/js?id=G-3028DJK3ZG&cx=c&gtm=4e64h1	208 ms	174 ms	33 ms
www.googletagmanager.com/gtag/js?id=G-7BCS07G3H9&cx=c&gtm=4e64h1	208 ms	172 ms	34 ms
fundingchoicesmessages.google.com/i/7765?ers=3	204 ms	185 ms	15 ms
www.googletagmanager.com/gtm.js?id=GTM-N49WWL	200 ms	152 ms	45 ms
www.ameba.jp/assets/app_shell-e9072ec466e4c175e9cf.js	188 ms	158 ms	15 ms
www.googletagmanager.com/gtag/destination?id=AW-608763171&cx=c&gtm=4e64h1	170 ms	140 ms	29 ms
www.googletagservices.com/tag/js/gpt.js	71 ms	62 ms	7.7 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	2.4 s
Other	819 ms
Style & Layout	786 ms
Script Parsing & Compilation	328 ms
Rendering	130 ms
Garbage Collection	98 ms
Parse HTML & CSS	78 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 14.4 KiB

URL	Transfer Size	Est Savings
.fc-consent-root .fc-cutout-background { background-color: rgb(255, 255, 255) !important; … } …	17.0 KiB	14.4 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
static-lifestyle.ameba.jp/micres/owlas/g/w42pj7x9?r=640	356.9 KiB
static-lifestyle.ameba.jp/micres/owlas/g/1vmp8y2v?r=640	310.3 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-N49WWL	164.0 KiB
www.googletagmanager.com/gtag/js?id=G-7BCS07G3H9&cx=c&gtm=4e64h1	157.1 KiB
www.googletagmanager.com/gtag/js?id=G-3028DJK3ZG&cx=c&gtm=4e64h1	157.1 KiB
www.googletagmanager.com/gtag/destination?id=AW-608763171&cx=c&gtm=4e64h1	144.5 KiB
www.ameba.jp/assets/vendor-fe2b1fc60d08d682f5b7.js	128.4 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_2.png	111.6 KiB
static-lifestyle.ameba.jp/micres/owlas/g/e4l6mkz4?r=640	109.2 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
Ameba(アメーバ) `header.SpHeader > div.MenuHeader > h1.MenuHeader_Title > img`	www.ameba.jp/images/common/logo.png
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/household-goods.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/home-appliances.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/beauty-health.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/food-beverages.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/gadgets-communication.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/gifts.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/fashion.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/books.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/apps.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/services.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/music-movies-video.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/loans-borrowing.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/credit-cards-cashless.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/hobbies.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/vehicles.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/sports-outdoors.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	/images/organizers/AmebaChoiceContents/investments-asset-...

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

●Layout shift culprits

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 15 user timings

●Avoid long main-thread tasks 20 long tasks found

●Network Requests

●Network Round Trip Times 230 ms

●Server Backend Latencies 720 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○Avoid non-composited animations

Accessibility

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

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
総合新登場急上昇 `section.TrackableViewport > div.SpBlogRankingTab > div.SpBlogRankingTab_Tabs > ul.HorizontalList`

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
総合 `div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item > button#blog-ranking-tab-tab-total`
新登場 `div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item > button#blog-ranking-tab-tab-new`
急上昇 `div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item > button#blog-ranking-tab-tab-hot`

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

Names and labels

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.TrackableViewport > form.SpSearchBox_Form > div.SpSearchBox_Button > button.TapContent `div.TrackableViewport > form.SpSearchBox_Form > div.SpSearchBox_Button > button.TapContent`

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
新規登録 `header.SpHeader > div.MenuHeader > div.MenuHeader_RegisterLink > a.TapContent`
ログイン `header.SpHeader > div.MenuHeader > div.MenuHeader_RegisterLink > a.TapContent`
無料でインストール `div.TopAppBanner_ImageContent > div.TopAppBanner_ImageContent_Content > div.TopAppBanner_ImageContent_Content_Text > p.TopAppBanner_ImageContent_Content_Text_sub`
「Amebaチョイス」でもっと探す `div.TopAmebaChoice_Container > section.AmebaChoiceContentsArticles > div.TrackableViewport > a.TapContent`
総合 `div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item > button#blog-ranking-tab-tab-total`
新登場 `div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item > button#blog-ranking-tab-tab-new`
急上昇 `div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item > button#blog-ranking-tab-tab-hot`
#お金 `div.SpSearchBox_Hash_Link > div.TrackableViewport > a.TapContent > p.Ellipsis`
#人間関係の悩み `div.SpSearchBox_Hash_Link > div.TrackableViewport > a.TapContent > p.Ellipsis`
※Ameba以外のサービスをご利用の場合利用規約と外部サービスとのID連携に関する同意事項に同意の上、ログインしてください。 `div.AppShell_MainContainer > footer.TrackableViewport > div.SpFooter_Notes > p.SpFooter_Notes_Text`
利用規約 `footer.TrackableViewport > div.SpFooter_Notes > p.SpFooter_Notes_Text > a.TapContent`
外部サービスとのID連携に関する同意事項 `footer.TrackableViewport > div.SpFooter_Notes > p.SpFooter_Notes_Text > a.TapContent`
著作権等管理事業者許諾番号 `div.AppShell_MainContainer > footer.TrackableViewport > div.SpFooter_Notes > a.TapContent`
安心・安全なご利用のために `div.AppShell_MainContainer > footer.TrackableViewport > div.SpFooter_Links > a.TapContent`
アクセスデータの利用 `div.AppShell_MainContainer > footer.TrackableViewport > div.SpFooter_Links > a.TapContent`
Amebaプロフィール `div.AppShell_MainContainer > footer.TrackableViewport > div.SpFooter_Links > a.TapContent`
お問い合わせ `div.SpFooter_Links > ul.HorizontalList > li.HorizontalList_Item > a.TapContent`
ヘルプ `div.SpFooter_Links > ul.HorizontalList > li.HorizontalList_Item > a.TapContent`
利用規約 `div.SpFooter_Links > ul.HorizontalList > li.HorizontalList_Item > a.TapContent`
特定商取引法に基づく表記 `div.AppShell_MainContainer > footer.TrackableViewport > div.SpFooter_Links > a.TapContent`
© CyberAgent, Inc. `div.AppShell_MainContainer > footer.TrackableViewport > div.SpFooter_Copyright > p`
Learn more `div.fc-dialog-content > div.fc-dialog-scrollable-content > button.fc-faq-header > span.fc-faq-label`
List of partners. `div.fc-dialog-scrollable-content > div.fc-footer > p > a.fc-vendors-list-dialog`
Manage options `div.fc-dialog > div.fc-footer-buttons-container > button.fc-button > p.fc-manage-options-third-button-label`

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
利用規約 `footer.TrackableViewport > div.SpFooter_Notes > p.SpFooter_Notes_Text > a.TapContent`
外部サービスとのID連携に関する同意事項 `footer.TrackableViewport > div.SpFooter_Notes > p.SpFooter_Notes_Text > a.TapContent`

These are opportunities to improve the legibility of your content.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Amebaの商品比較メディア `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
ブログで役立つ情報を発信中！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
わが子の100点塾探しするなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
全部教えて！と言われる美容法 `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
クレカ・ローン情報をご紹介！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
納得の進路・高校を見つけるなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
Amebaの商品比較メディア `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
ブログで役立つ情報を発信中！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
わが子の100点塾探しするなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
全部教えて！と言われる美容法 `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
クレカ・ローン情報をご紹介！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
納得の進路・高校を見つけるなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
Amebaの商品比較メディア `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
ブログで役立つ情報を発信中！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
わが子の100点塾探しするなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
全部教えて！と言われる美容法 `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
総合 `div.SpBlogRankingTab > div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item`
新登場 `div.SpBlogRankingTab > div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item`
急上昇 `div.SpBlogRankingTab > div.SpBlogRankingTab_Tabs > ul.HorizontalList > li.HorizontalList_Item`

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

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

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

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

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

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

●`[role]` values are valid

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

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

●Image elements have `[alt]` attributes

●Form elements have associated labels

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

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

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

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

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

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

●Links have a discernible name

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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with 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

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

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

○Input buttons have discernible text.

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

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

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

○`[lang]` attributes have a valid value

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

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

○All heading elements contain content.

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

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

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

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	280 x 147 (1.90)	25 x 25 (1.00)
TVに釘付けでお風呂を見失う子達の画像 `ul.HorizontalScroller > li.HorizontalScroller_Item > a.TapContent > img.LazyImage`	200 x 134 (1.49)	25 x 25 (1.00)
丁寧に作られたと思ったあんみつの画像 `ul.HorizontalScroller > li.HorizontalScroller_Item > a.TapContent > img.LazyImage`	200 x 134 (1.49)	25 x 25 (1.00)
細川直美気持ちがいい朝の天気の画像 `ul.HorizontalScroller > li.HorizontalScroller_Item > a.TapContent > img.LazyImage`	200 x 134 (1.49)	25 x 25 (1.00)
團十郎沢山記事になり感謝の言葉の画像 `ul.HorizontalScroller > li.HorizontalScroller_Item > a.TapContent > img.LazyImage`	200 x 134 (1.49)	25 x 25 (1.00)
モト冬樹全身で甘えてくる様子の画像 `ul.HorizontalScroller > li.HorizontalScroller_Item > a.TapContent > img.LazyImage`	200 x 134 (1.49)	25 x 25 (1.00)
モモコ夫合いすぎた小鍋と漬け丼の画像 `ul.HorizontalScroller > li.HorizontalScroller_Item > a.TapContent > img.LazyImage`	200 x 134 (1.49)	25 x 25 (1.00)

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
AttributionReporting	www.googletagmanager.com/gtag/destination?id=AW-608763171&cx=c&gtm=4e64h1 line 585, col 244
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.	/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads... line 19, col 449

●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

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

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

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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.

Content Best Practices

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●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

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.

1.51 s

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

2.74 s

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

24 ms

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

0.001

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

3.75 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.

4.31 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Why this matters

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

Learn more ▾

Source: Google web.dev / Lighthouse

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
www.ameba.jp/assets/vendor-fe2b1fc60d08d682f5b7.js	3600.0 s	128.4 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_2.png	3600.0 s	111.6 KiB
connect.facebook.net/ja_JP/bundle/sdk.js/	1200.0 s	77.9 KiB
www.ameba.jp/font/ameba_symbols_v3/v1.30/amebasymbolsv3.woff	3600.0 s	53.5 KiB
www.ameba.jp/assets/app_shell_desktop-a9927de466b880433cff.js	3600.0 s	50.2 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_1.png	3600.0 s	45.8 KiB
static-lifestyle.ameba.jp/micres/owlas/g/w42pj7x9?r=640	864000.0 s	356.9 KiB
stat.amebame.com/pub/ads/adx/93da2ecd-8c79-4bf0-8e61-329aafab5394.png?size=640	86400.0 s	78.9 KiB
static-lifestyle.ameba.jp/micres/owlas/g/1vmp8y2v?r=640	864000.0 s	310.4 KiB
platform.twitter.com/widgets.js	1800.0 s	27.3 KiB
stat.amebame.com/pub/ads/adx/186c1e54-200f-4dca-a729-f516a42cf5d6.png?size=640	86400.0 s	56.2 KiB
www.ameba.jp/images/sprites/spritesheet-1750990985644.png	3600.0 s	27.3 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_3.png	3600.0 s	25.3 KiB
stat.amebame.com/pub/ads/adx/702566e7-fba4-4fe4-8ec4-736a9d39931a.jpg?size=640	86400.0 s	41.9 KiB
www.ameba.jp/images/organizers/OnBoardingContents/usage_1.png	3600.0 s	20.5 KiB
stat.amebame.com/pub/ads/adx/3ff9c367-3f93-4c6d-8048-73240f3e0151.jpg?size=640	86400.0 s	37.2 KiB
stat.amebame.com/pub/ads/adx/e79615bd-10d1-46d4-bc13-cdcb0e428df1.jpg?size=640	86400.0 s	36.3 KiB
www.ameba.jp/images/organizers/OnBoardingContents/usage_2.png	3600.0 s	17.5 KiB
stat.amebame.com/pub/ads/adx/4c9829f4-c269-4bb3-ad2f-0556a40e5708.jpg?size=640	86400.0 s	31.8 KiB
www.ameba.jp/assets/misc-14a29d5d1513a571fec1.js	3600.0 s	14.1 KiB
static-lifestyle.ameba.jp/micres/owlas/g/e4l6mkz4?r=640	864000.0 s	109.2 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
static-lifestyle.ameba.jp/micres/owlas/g/p968668v?r=640	864000.0 s	69.7 KiB
static-lifestyle.ameba.jp/micres/owlas/g/n93j6w04?r=640	864000.0 s	65.5 KiB
www.ameba.jp/assets/misc-6f5d87d8882ae9caebed.js	3600.0 s	7.3 KiB
static-lifestyle.ameba.jp/micres/owlas/g/e9x0xyk9?r=640	864000.0 s	54.0 KiB
www.ameba.jp/assets/misc-291772a82c81cd24dd27.js	3600.0 s	5.9 KiB
www.ameba.jp/assets/top_desktop-4cec3aefb3efaa2a23971f9126a079d9.css	3600.0 s	5.8 KiB
connect.facebook.net/ja_JP/sdk.js#xfbml=1&version=v3.1	1200.0 s	5.1 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/choice_logo.svg	3600.0 s	3.1 KiB
www.ameba.jp/images/common/ameba_logo.svg	3600.0 s	3.0 KiB
www.ameba.jp/images/organizers/AppShellDesktop/PcFooter/logo_cyber.png	3600.0 s	1.7 KiB
/3vKPuLD15Mr4UdVMJzZdmCMukZwawgx1zPE5vsTM1iUEnp4dli9mtSE_...	86400.0 s	3.1 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/vehicles.svg	3600.0 s	1.3 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/beauty-health.svg	3600.0 s	1.2 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/sports-outdoors.svg	3600.0 s	1.2 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/gifts.svg	3600.0 s	1.1 KiB
/images/organizers/AmebaChoiceContents/investments-asset-...	3600.0 s	1.1 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/services.svg	3600.0 s	1.0 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/music-movies-video.svg	3600.0 s	1.0 KiB
c.stat100.ameba.jp/common_style/img/ameba/common/bnr_jasrac.png	604800.0 s	8.0 KiB
www.ameba.jp/images/organizers/AmebaChoiceContents/home-appliances.svg	3600.0 s	999 B
www.ameba.jp/images/organizers/AmebaChoiceContents/food-beverages.svg	3600.0 s	878 B
www.ameba.jp/images/organizers/AmebaChoiceContents/loans-borrowing.svg	3600.0 s	860 B
www.ameba.jp/images/organizers/AmebaChoiceContents/apps.svg	3600.0 s	814 B
www.ameba.jp/images/organizers/AmebaChoiceContents/credit-cards-cashless.svg	3600.0 s	813 B
www.ameba.jp/images/organizers/AmebaChoiceContents/household-goods.svg	3600.0 s	712 B
www.ameba.jp/images/organizers/AmebaChoiceContents/hobbies.svg	3600.0 s	692 B
www.ameba.jp/images/organizers/AmebaChoiceContents/fashion.svg	3600.0 s	656 B
www.ameba.jp/images/organizers/AmebaChoiceContents/books.svg	3600.0 s	584 B
www.ameba.jp/images/organizers/AmebaChoiceContents/gadgets-communication.svg	3600.0 s	535 B
sy.ameba.jp/sync/?rtn=true	0.0 ms	108 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	40 ms
www.ameba.jp/font/ameba_symbols_v3/v1.30/amebasymbolsv3.woff	10 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
【利用者247人の声で選ぶ】ウォーターサーバーおすすめ厳選7機種｜2026年最新の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/w42pj7x9?r=640	356.5 KiB	347.8 KiB
ふるさと納税サイトのおすすめランキング25選！最新のキャンペーン情報や特徴別おすすめサイトも紹介の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/1vmp8y2v?r=640	310.0 KiB	301.2 KiB
div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image `div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image`	www.ameba.jp/images/organizers/OnBoardingContents/service_2.png	111.5 KiB	102.1 KiB
おすすめカードローンをランキングで紹介！人気の35社を一覧で徹底比較の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/e4l6mkz4?r=640	108.9 KiB	100.1 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/93da2ecd-8c79-4bf0-8e61-329aafab5394.png?size=640	78.6 KiB	69.9 KiB
【2026年】マッチングアプリおすすめはこれ！286人に聞いた人気アプリランキングの画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/p968668v?r=640	69.6 KiB	60.8 KiB
転職エージェントおすすめ21選を徹底比較！特化型のサービスも紹介！メリットや注意点も解説の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/n93j6w04?r=640	65.2 KiB	56.5 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/186c1e54-200f-4dca-a729-f516a42cf5d6.png?size=640	56.0 KiB	47.2 KiB
クレジットカードのおすすめ人気ランキング40選！究極の1枚の選び方の画像 `ul.AmebaChoiceContentsArticles_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsArticles_Item_Image`	static-lifestyle.ameba.jp/micres/owlas/g/e9x0xyk9?r=640	53.8 KiB	45.0 KiB
div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image `div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image`	www.ameba.jp/images/organizers/OnBoardingContents/service_1.png	45.5 KiB	38.3 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/702566e7-fba4-4fe4-8ec4-736a9d39931a.jpg?size=640	41.5 KiB	32.8 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/3ff9c367-3f93-4c6d-8048-73240f3e0151.jpg?size=640	36.9 KiB	28.2 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/e79615bd-10d1-46d4-bc13-cdcb0e428df1.jpg?size=640	36.1 KiB	27.3 KiB
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	stat.amebame.com/pub/ads/adx/4c9829f4-c269-4bb3-ad2f-0556a40e5708.jpg?size=640	31.4 KiB	23.6 KiB
div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image `div.OnBoardingContentsService > ul.OnBoardingContentsService_Feature > li.OnBoardingContentsService_Feature_Item > img.OnBoardingContentsService_Feature_Item_Image`	www.ameba.jp/images/organizers/OnBoardingContents/service_3.png	25.2 KiB	21.2 KiB
div.TopOnBoarding > div.OnBoardingContentsHowToUse > div.OnBoardingContentsHowToUse_Inner > img.OnBoardingContentsHowToUse_Image1 `div.TopOnBoarding > div.OnBoardingContentsHowToUse > div.OnBoardingContentsHowToUse_Inner > img.OnBoardingContentsHowToUse_Image1`	www.ameba.jp/images/organizers/OnBoardingContents/usage_1.png	20.4 KiB	17.2 KiB
div.TopOnBoarding > div.OnBoardingContentsHowToUse > div.OnBoardingContentsHowToUse_Inner > img.OnBoardingContentsHowToUse_Image2 `div.TopOnBoarding > div.OnBoardingContentsHowToUse > div.OnBoardingContentsHowToUse_Inner > img.OnBoardingContentsHowToUse_Image2`	www.ameba.jp/images/organizers/OnBoardingContents/usage_2.png	17.4 KiB	14.3 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[duration:3460.512 label:Time to first byte subpart:timeToFirstByte] map[duration:462.55 label:Resource load delay subpart:resourceLoadDelay] map[duration:15.51 label:Resource load duration subpart:resourceLoadDuration] map[duration:106.226 label:Element render delay subpart:elementRenderDelay]]

lhId: page-11-IMG

nodeLabel: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

path: 1,HTML,1,BODY,1,DIV,0,DIV,2,MAIN,0,DIV,2,DIV,0,DIV,0,SECTION,1,UL,4,LI,0,A,0,DIV,0,IMG

selector: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

snippet: <img class="LazyImage OnBoardingContentsCarouselItem_Image Thumbnail -ready" src="https://stat.amebame.com/pub/ads/adx/3ff9c367-3f93-4c6d-8048-73240f3e0151.…" alt="">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-11-IMG

nodeLabel: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

path: 1,HTML,1,BODY,1,DIV,0,DIV,2,MAIN,0,DIV,2,DIV,0,DIV,0,SECTION,1,UL,4,LI,0,A,0,DIV,0,IMG

selector: li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage

snippet: <img class="LazyImage OnBoardingContentsCarouselItem_Image Thumbnail -ready" src="https://stat.amebame.com/pub/ads/adx/3ff9c367-3f93-4c6d-8048-73240f3e0151.…" alt="">

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
www.ameba.jp/assets/top_desktop-4cec3aefb3efaa2a23971f9126a079d9.css	5.8 KiB

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.4 s

URL	Time Spent
ameba.jp/	240 ms
www.ameba.jp/	204 ms
www.ameba.jp/auth/login?prompt=none	41 ms
/connect/authorize?client_id=db98bf8b687fc3334c4b8cde9116...	918 ms
/auth/callback?error=login_required&state=brQNgqmJGdtBIzl...	0.0 ms
www.ameba.jp/loginCheck.do?isAuthenticated=false	0.0 ms
www.ameba.jp/	0.0 ms

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 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: 120 ms 425.9 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtm.js?id=GTM-N49WWL	163.6 KiB	73.1 KiB
www.googletagmanager.com/gtag/js?id=G-3028DJK3ZG&cx=c&gtm=4e64h1	157.0 KiB	64.0 KiB
www.googletagmanager.com/gtag/js?id=G-7BCS07G3H9&cx=c&gtm=4e64h1	157.1 KiB	63.7 KiB
www.googletagmanager.com/gtag/destination?id=AW-608763171&cx=c&gtm=4e64h1	144.5 KiB	59.6 KiB
www.ameba.jp/assets/vendor-fe2b1fc60d08d682f5b7.js	128.3 KiB	55.3 KiB
connect.facebook.net/ja_JP/bundle/sdk.js/	77.8 KiB	50.7 KiB
fundingchoicesmessages.google.com/i/pub-9369398376690864?ers=1	68.8 KiB	35.2 KiB
www.ameba.jp/assets/app_shell_desktop-a9927de466b880433cff.js	49.5 KiB	24.3 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 14.5 KiB

URL	Transfer Size	Est Savings
.fc-consent-root .fc-cutout-background { background-color: rgb(255, 255, 255) !important; … } …	17.0 KiB	14.5 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
static-lifestyle.ameba.jp/micres/owlas/g/w42pj7x9?r=640	356.9 KiB
static-lifestyle.ameba.jp/micres/owlas/g/1vmp8y2v?r=640	310.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-N49WWL	164.0 KiB
www.googletagmanager.com/gtag/js?id=G-7BCS07G3H9&cx=c&gtm=4e64h1	157.1 KiB
www.googletagmanager.com/gtag/js?id=G-3028DJK3ZG&cx=c&gtm=4e64h1	157.1 KiB
www.googletagmanager.com/gtag/destination?id=AW-608763171&cx=c&gtm=4e64h1	144.5 KiB
www.ameba.jp/assets/vendor-fe2b1fc60d08d682f5b7.js	128.4 KiB
www.ameba.jp/images/organizers/OnBoardingContents/service_2.png	111.6 KiB
static-lifestyle.ameba.jp/micres/owlas/g/e4l6mkz4?r=640	109.2 KiB
/widgets/widget_iframe.2f70fb173b9000da126c79afe2098f02.h...	103.4 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
CyberAgent, Inc. `div.PcFooter_Corporate_Inner > p.PcFooter_Copyright > a > img`	www.ameba.jp/images/organizers/AppShellDesktop/PcFooter/logo_cyber.png
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/household-goods.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/home-appliances.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/beauty-health.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/food-beverages.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/gadgets-communication.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/gifts.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/fashion.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/books.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/apps.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/services.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/music-movies-video.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/loans-borrowing.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/credit-cards-cashless.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/hobbies.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/vehicles.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	www.ameba.jp/images/organizers/AmebaChoiceContents/sports-outdoors.svg
ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon `ul.AmebaChoiceContentsCategory_List > li.TrackableViewport > a.TapContent > img.AmebaChoiceContentsCategory_Icon`	/images/organizers/AmebaChoiceContents/investments-asset-...
アメーバアプリ `div.FooterAmeba_AmebaApp > div.FooterAmeba_AmebaApp_Content > div.FooterAmeba_AmebaApp_Icon > img.LazyImage`
qrコードで読み取る `div.FooterAmeba_AmebaApp > div.FooterAmeba_AmebaApp_Content > div.FooterAmeba_AmebaApp_QrCode > img.LazyImage`

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

●Layout shift culprits

●Optimize DOM size

●Forced reflow

●Modern HTTP

●Optimize viewport for mobile

●Max Potential First Input Delay 60 ms

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 15 user timings

●JavaScript execution time 0.5 s

●Minimizes main-thread work 1.3 s

●Avoid long main-thread tasks 5 long tasks found

●Network Requests

●Network Round Trip Times 230 ms

●Server Backend Latencies 720 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 470 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○Avoid non-composited animations

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
検索 `div.PcHeader_Controls > div.PcHeader_Search > form.PcSearchBox > input.PcSearchBox_Input`
新規登録 `div.PcHeader_Inner > div.PcHeader_Controls > div.PcHeader_Controls_Login > a.TapContent`
ログイン `div.PcHeader_Inner > div.PcHeader_Controls > div.PcHeader_Controls_Login > a.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
更新を受け取る `div.PcBlogRankings > ul.clearfix > li.PcBlogRankings_Item > button.TapContent`
新規登録 (無料) `div.TopFooterLogin > div.TopFooterLogin_Container > div.TopFooterLogin_LoginInner > a.TapContent`
(無料) `div.TopFooterLogin_Container > div.TopFooterLogin_LoginInner > a.TapContent > p.TopFooterLogin_RegisterLink_SubText`
ログイン `div.TopFooterLogin > div.TopFooterLogin_Container > div.TopFooterLogin_LoginInner > a.TapContent`
Learn more `div.fc-dialog-content > div.fc-dialog-scrollable-content > button.fc-faq-header > span.fc-faq-label`
List of partners. `div.fc-dialog-scrollable-content > div.fc-footer > p > a.fc-vendors-list-dialog`
Manage options `div.fc-dialog > div.fc-footer-buttons-container > button.fc-button > p.fc-manage-options-third-button-label`

These are opportunities to improve the legibility of your content.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
わが子の100点塾探しするなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
納得の進路・高校を見つけるなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
Amebaの商品比較メディア `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
ブログで役立つ情報を発信中！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
全部教えて！と言われる美容法 `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
クレカ・ローン情報をご紹介！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
わが子の100点塾探しするなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
納得の進路・高校を見つけるなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
Amebaの商品比較メディア `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
ブログで役立つ情報を発信中！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
全部教えて！と言われる美容法 `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
クレカ・ローン情報をご紹介！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
わが子の100点塾探しするなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
納得の進路・高校を見つけるなら `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
Amebaの商品比較メディア `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`
ブログで役立つ情報を発信中！ `div.OnBoardingContentsCarousel > section.OnBoardingContentsCarousel_Container > ul.OnBoardingContentsCarousel_Container_List > li.OnBoardingContentsCarouselItem`

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

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
検索 `div.PcHeader_Controls > div.PcHeader_Search > form.PcSearchBox > button.TapContent`

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

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

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

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

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

●Links have a discernible name

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

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

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

○`[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 buttons have discernible text.

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

○Links are distinguishable without relying on color.

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

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

○`[lang]` attributes have a valid value

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

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

○All heading elements contain content.

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

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

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

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage `li.OnBoardingContentsCarouselItem > a.TapContent > div.OnBoardingContentsCarouselItem_ImageBlock > img.LazyImage`	320 x 168 (1.90)	25 x 25 (1.00)
初めて見たごはん盛り付けロボットの画像 `ul.clearfix > li.TopPopularityBlogNews_Item > a.TapContent > img.LazyImage`	318 x 212 (1.50)	25 x 25 (1.00)
番組メンバーが来た事あるたこ焼き屋の画像 `ul.clearfix > li.TopPopularityBlogNews_Item > a.TapContent > img.LazyImage`	318 x 212 (1.50)	25 x 25 (1.00)
生姜パウダーでほかほかする朝ご飯の画像 `ul.clearfix > li.TopPopularityBlogNews_Item > a.TapContent > img.LazyImage`	318 x 212 (1.50)	25 x 25 (1.00)
夫と家事で揉める時間軸の違いの画像 `ul.clearfix > li.TopPopularityBlogNews_Item > a.TapContent > img.LazyImage`	318 x 212 (1.50)	25 x 25 (1.00)
丁寧に作られたと思ったあんみつの画像 `ul.clearfix > li.TopPopularityBlogNews_Item > a.TapContent > img.LazyImage`	318 x 212 (1.50)	25 x 25 (1.00)
TVに釘付けでお風呂を見失う子達の画像 `ul.clearfix > li.TopPopularityBlogNews_Item > a.TapContent > img.LazyImage`	318 x 212 (1.50)	25 x 25 (1.00)
Amebaにログインすると無料でもっと！楽しめる `div.TopFooterLogin > div.TopFooterLogin_Container > div.TopFooterLogin_Title > img.LazyImage`	589 x 26 (22.65)	25 x 25 (1.00)
国内最大急ブログが無料で使える！ `div.TopFooterLogin_Container > div.TopFooterLogin_Inner > div.TopFooterLogin_Inner_Left > img.LazyImage`	640 x 440 (1.45)	25 x 25 (1.00)
人気のゲームが無料で遊べる！ `div.TopFooterLogin_Inner > ul.TopFooterLogin_Inner_Right > li.TopFooterLogin_Inner_Right_Item > img.LazyImage`	300 x 220 (1.36)	25 x 25 (1.00)
Amebaのサービスをもっと便利に！ `div.TopFooterLogin_Inner > ul.TopFooterLogin_Inner_Right > li.TopFooterLogin_Inner_Right_Item > img.LazyImage`	308 x 200 (1.54)	25 x 25 (1.00)
AppStoreからダウンロード `div.FooterAmeba_AmebaApp_Body > div.FooterAmeba_AmebaApp_Links > a.TapContent > img.LazyImage`	135 x 40 (3.38)	25 x 25 (1.00)
Google playで手に入れよう `div.FooterAmeba_AmebaApp_Body > div.FooterAmeba_AmebaApp_Links > a.TapContent > img.LazyImage`	135 x 40 (3.38)	25 x 25 (1.00)

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
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.	/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads... line 19, col 449
AttributionReporting	www.googletagmanager.com/gtag/destination?id=AW-608763171&cx=c&gtm=4e64h1 line 585, col 244

●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

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

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

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

Content Best Practices

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Why this matters

Performance issues directly impact user engagement and conversion rates.

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●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://ameba.jp

Site Health

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Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

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What fixing these means

Conversion Barriers

Speed (2)

Trust (2)

Usability (1)

Content (3)

Navigation (1)

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

ARIA

Names and labels

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Tables and lists

Best Practices

User Experience

General

SEO

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Tables and lists

Best practices

Best Practices

User Experience

General

SEO

Content Best Practices

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