Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

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REVIEW

PASS

INFO

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

Performance issues directly impact user engagement and conversion rates.

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
lupic.cdn.bcebos.com/luimage_static/last_14.jpg	206903.0 s	698.5 KiB
/c_lfill,w_666,h_332,g_face/images03/20260417/0f0ac54d9da...	0.0 ms	39.5 KiB
/c_lfill,w_666,h_332,g_face/images03/20260417/dedd89c0c87...	0.0 ms	33.9 KiB
/c_lfill,w_666,h_332,g_face/images03/20260416/8daf2a3bc38...	0.0 ms	30.1 KiB
reke.at.sohu.com/lhjnov.js	14400.0 s	38.7 KiB
lupic.cdn.bcebos.com/20220812/3087444501_14_600_429.jpg	24039.0 s	29.8 KiB
lupic.cdn.bcebos.com/20210629/26651259_14.jpg	57073.0 s	13.0 KiB
cpro.baidustatic.com/js/logo/js/logo.js	3600.0 s	6.3 KiB
29e5534ea20a8.cdn.sohucs.com/mobile/sohu-logo-d.png	0.0 ms	4.9 KiB
reke.at.sohu.com/js/logo/js/logo.js	14400.0 s	6.4 KiB
reke.at.sohu.com/dhebfgn.js	14400.0 s	4.2 KiB
statics.itc.cn/mobile/ucenter/images/ic_home_photo_gray.png	0.0 ms	2.3 KiB
/i/cookie/common?callback=passport4014_cb1776361195371&_=...	0.0 ms	1.9 KiB
reke.at.sohu.com/common/av_us/e/openjs/k/krk.js	14400.0 s	2.0 KiB
statics.itc.cn/js/spv.js	0.0 ms	1.3 KiB
reke.at.sohu.com/common/lgc/dm/h/cc/static/o.js	14400.0 s	1.8 KiB
cpro.baidustatic.com/css/base_f258e90.css	3600.0 s	1.4 KiB
render-server.cdn.bcebos.com/static/images/spring_festival/ad-logo.png	244797.0 s	3.6 KiB
cpro.baidustatic.com/js/logo/css/logo.css	3600.0 s	979 B
reke.at.sohu.com/js/logo/css/logo-sm.css	14400.0 s	975 B
txt.go.sohu.com/ip/soip	3600.0 s	699 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	643 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	643 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	643 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	643 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	643 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	643 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	641 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	641 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	641 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	641 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	641 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	641 B
/sv.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	587 B
/adx.php?c=d25pZD0zZjhkMjJjM2UwMzk3M2ZiAHM9M2Y4ZDIyYzNlMD...	0.0 ms	464 B
/adx.php?c=d25pZD0wMjFlNDhmZDVlYTQ0ZjkwAHM9MDIxZTQ4ZmQ1ZW...	0.0 ms	464 B
/adx.php?c=d25pZD1hOWRmMDM0ZWJjMjU0OTViAHM9YTlkZjAzNGViYz...	0.0 ms	464 B
cpro.baidustatic.com/cpro/ui/pr.js	3600.0 s	486 B
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	477 B
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	477 B
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	477 B
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	475 B
/static/images/20210525/d5443f3a0c9fe8456beb5f50eb08ed60.png	205848.0 s	1.2 KiB
pv.sohu.com/pv.gif?t?=1776361195179177_412_823?r?=	3600.0 s	340 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	202 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	202 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	202 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	202 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	202 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	202 B
/count/v?appid=wapnews&apid=beans_12273&reqId=2884624a-f7...	0.0 ms	201 B
/count/v?appid=wapnews&apid=beans_12416&reqId=2884624a-f7...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	201 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	200 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	200 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	200 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	200 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	200 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	200 B
/count/v?appid=wapnews&reqId=2884624a-f740-7d4c-9c10-9b75...	0.0 ms	200 B
/max/pv?pl=3854&rt=1776361196352.9&chan_type=mobile_max&a...	0.0 ms	187 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	33 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	33 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	33 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	33 B
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	3600.0 s	33 B
cpro.baidustatic.com/js/logo/js/logo.js	3600.0 s	0 B
render-server.cdn.bcebos.com/static/images/spring_festival/ad-logo.png	244797.0 s	0 B
cpro.baidustatic.com/css/base_f258e90.css	3600.0 s	0 B
cpro.baidustatic.com/js/logo/css/logo.css	3600.0 s	0 B
/static/images/20210525/d5443f3a0c9fe8456beb5f50eb08ed60.png	205848.0 s	0 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.

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:1392.697 label:Time to first byte subpart:timeToFirstByte] map[duration:2483.741 label:Resource load delay subpart:resourceLoadDelay] map[duration:393.199 label:Resource load duration subpart:resourceLoadDuration] map[duration:12.856 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-IMG

nodeLabel: div.index-win-container > a.landing-link > div.image-c > img.img

path: 1,HTML,1,BODY,0,MAIN,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,A,0,DIV,0,DIV,0,DIV,0,A,0,DIV,1,IMG

selector: div.index-win-container > a.landing-link > div.image-c > img.img

snippet: <img data-v-4bd993e0="" src="https://p3.ssl.qhimgs0.com/sdm/324_210_/t01fb6193c02fe2ef4c.jpg" class="img" style="width: 324px; height: 210px;">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG

nodeLabel: div.index-win-container > a.landing-link > div.image-c > img.img

path: 1,HTML,1,BODY,0,MAIN,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,A,0,DIV,0,DIV,0,DIV,0,A,0,DIV,1,IMG

selector: div.index-win-container > a.landing-link > div.image-c > img.img

snippet: <img data-v-4bd993e0="" src="https://p3.ssl.qhimgs0.com/sdm/324_210_/t01fb6193c02fe2ef4c.jpg" class="img" style="width: 324px; height: 210px;">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

title: Preconnected origins

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

title: Preconnect candidates

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
div.swiper-wrapper > div.swiper-slide > a.focus-item-jump > img.focus-item-img `div.swiper-wrapper > div.swiper-slide > a.focus-item-jump > img.focus-item-img`	/c_lfill,w_666,h_332,g_face/images03/20260417/0f0ac54d9da...	39.1 KiB	11.6 KiB
div.index-win-container > a.landing-link > div.image-c > img.bg `div.index-win-container > a.landing-link > div.image-c > img.bg`	p3.ssl.qhimgs0.com/sdm/324_210_/t01fb6193c02fe2ef4c.jpg	19.7 KiB	8.6 KiB

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
/sv.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/se.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/se.jpg?type=iframeLoadStatus&result=u6512242_0_0_1_0\|u65...	http/1.1
/rs.jpg?pageSearchId=1776361217119npnrwjfrtx&content=%7Bp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/sa.gif?page_refer_url=&device_resolution=412_823_1.75&sp...	http/1.1
/se.jpg?type=baiduDomShowMonitor&tuidIndex=u6512242_0&ver...	http/1.1
/se.jpg?type=baiduDomShowMonitor&tuidIndex=u6512242_1&ver...	http/1.1
/se.jpg?type=baiduDomShowMonitor&tuidIndex=u4507449_0&ver...	http/1.1
/rs.jpg?pageSearchId=1776361217119npnrwjfrtx&content=%7Bp...	http/1.1

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: 2.1 s

URL	Time Spent
sohu.com/	1.2 s
www.sohu.com/	825 ms
m.sohu.com/?pvid=000115_3w_index&jump=front	0.0 ms

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.

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

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 300 ms 100.5 KiB

URL	Transfer Size	Est Savings
g1.itc.cn/msfe-waph-prod/300000000000/assets/ClientJs/vendors-1d5f1175d6.js	151.1 KiB	57.7 KiB
g1.itc.cn/msfe-waph-prod/300000000000/assets/ClientJs/HomeIndex-e4d0a1df0f.js	50.0 KiB	22.2 KiB
reke.at.sohu.com/lhjnov.js	38.5 KiB	20.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
g1.itc.cn/msfe-waph-prod/300000000000/assets/ClientJs/HomeIndex-e4d0a1df0f.js	1.4 s	1.2 s	14 ms
m.sohu.com/?pvid=000115_3w_index&jump=front	1.1 s	19 ms	34 ms
Unattributable	685 ms	5.7 ms	0.0 ms
reke.at.sohu.com/lhjnov.js	222 ms	188 ms	14 ms
g1.itc.cn/msfe-waph-prod/300000000000/assets/ClientJs/vendors-1d5f1175d6.js	181 ms	50 ms	44 ms
reke.at.sohu.com/common/av_us/e/openjs/k/krk.js	67 ms	61 ms	2.4 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	1.5 s
Other	945 ms
Style & Layout	868 ms
Rendering	240 ms
Script Parsing & Compilation	116 ms
Garbage Collection	71 ms
Parse HTML & CSS	63 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 16.7 KiB

URL	Transfer Size	Est Savings
.drawer-enter-active[data-v-185a4d94],.drawer-leave-active[data-v-185a4d94]{opacity:1; … } …	22.1 KiB	16.7 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
手机搜狐 `div#header > div.header-box > a.header-logo > img`	29e5534ea20a8.cdn.sohucs.com/mobile/sohu-logo-d.png

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

●Layout shift culprits

●Optimize DOM size

●Font display

●Forced reflow

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,363 KiB

●Avoid long main-thread tasks 5 long tasks found

●Avoid non-composited animations 21 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 320 ms

●Server Backend Latencies 6,440 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 330 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○User Timing marks and measures

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.

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
赛里木湖冰推景观对我眼睛很好 `div#header > div.header-box > a.header-search > section.header-query`
4055.55 +28.34 `div.stock_hqnew > div#FT_index > a > span.e1`
股票搜索 `li.stock_s1 > form#searchForm > i.stock_txt > input.stock_kw`
查行情 `div.stock_search > ul > li.stock_s2 > a#smtbtn`
查看更多 `div.content-left > div#RecommendFeed > div.recommend-more > button.recommend-more-btn`
Copyright © 2026 Sohu All Rights Reserved `div.content-left > div.cbd-plate > footer.copyright > p`
京ICP证030367号 `div.content-left > div.cbd-plate > footer.copyright > a`
搜狐公司版权所有 `div.content-left > div.cbd-plate > footer.copyright > p.company-font`

These are opportunities to improve the legibility of your content.

Names and labels

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.f > div > div > iframe `div.f > div > div > iframe`
div.f > div > div > iframe `div.f > div > div > iframe`
a.anchor-el > div > div > iframe `a.anchor-el > div > div > iframe`

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.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

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

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

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

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

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Form elements have associated labels

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

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

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

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

●Links have a discernible name

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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●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

○Deprecated ARIA roles were not used

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

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

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

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

○`[role]` values are valid

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

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

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

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

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

○ARIA IDs are unique

○No form fields have multiple labels

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

○Input buttons have discernible text.

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

○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.

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

○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.

○Uses ARIA roles only on compatible elements

○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.

100

Best Practices

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No 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 clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

100

SEO

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

○Document has a valid `rel=canonical`