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

Audit breakdown by category with detailed findings.

83

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.

RequestCache TTLTransfer Size
www.dismall.com/data/attachment/common/6c/common_45_icon.png3600.0 s238.1 KiB
www.dismall.com/data/attachment/common/ad/common_74_icon.png3600.0 s236.5 KiB
www.dismall.com/data/attachment/common/14/common_69_icon.png3600.0 s235.4 KiB
www.dismall.com/data/attachment/common/d9/common_46_icon.png3600.0 s234.8 KiB
www.dismall.com/data/attachment/common/f7/common_44_icon.png3600.0 s232.2 KiB
www.dismall.com/data/attachment/common/64/common_48_icon.png3600.0 s229.6 KiB
www.dismall.com/data/attachment/common/f4/common_49_icon.png3600.0 s229.5 KiB
www.dismall.com/data/attachment/common/a5/common_38_icon.png3600.0 s225.7 KiB
www.dismall.com/data/attachment/common/28/common_51_icon.png3600.0 s225.5 KiB
www.dismall.com/data/attachment/common/67/common_47_icon.png3600.0 s225.1 KiB
www.dismall.com/data/attachment/common/19/common_36_icon.png3600.0 s225.0 KiB
www.dismall.com/data/attachment/common/43/common_81_icon.png3600.0 s221.6 KiB
www.dismall.com/data/attachment/common/32/common_66_icon.png3600.0 s204.3 KiB
www.dismall.com/template/discuz_dismall/image/ewm_b.jpg3600.0 s166.4 KiB
www.dismall.com/data/attachment/common/ea/common_64_icon.png3600.0 s122.5 KiB
www.dismall.com/data/attachment/common/03/common_63_icon.png3600.0 s104.6 KiB
www.dismall.com/static/image/logo/dzw3.png3600.0 s104.3 KiB
www.dismall.com/static/image/logo/app.png3600.0 s96.5 KiB
www.dismall.com/static/image/logo/x5_1.png3600.0 s61.5 KiB
www.dismall.com/data/cache/style_4_common.css?Ibz43200.0 s57.5 KiB
www.dismall.com/template/dismall/static/logo.png3600.0 s25.9 KiB
www.dismall.com/template/discuz_dismall/image/jquery.min.js?Ibz43200.0 s37.9 KiB
www.dismall.com/template/discuz_dismall/image/dzicon.woff20.0 ms17.2 KiB
www.dismall.com/data/attachment/portal/202404/11/150100i6w5p4qh71z45pew.jpg3600.0 s15.0 KiB
www.dismall.com/data/cache/common.js?Ibz43200.0 s20.6 KiB
www.dismall.com/data/cache/lang_SC_UTF8.js?Ibz43200.0 s9.0 KiB
www.dismall.com/static/image/logo/DiscuzOfficial.apk.png3600.0 s5.0 KiB
www.dismall.com/uc_server/data/avatar/noavatar.svg3600.0 s4.4 KiB
www.dismall.com/data/cache/forum.js?Ibz43200.0 s6.6 KiB
www.dismall.com/data/cache/style_4_forum_index.css?Ibz43200.0 s2.8 KiB
www.dismall.com/template/discuz_dismall/image/svg/comiis_ico_lastpost.svg3600.0 s1.4 KiB
www.dismall.com/template/discuz_dismall/image/ico_mps.png3600.0 s1.4 KiB
www.dismall.com/template/discuz_dismall/image/svg/comiis_ico_ann.svg3600.0 s1.2 KiB
www.dismall.com/home.php?mod=misc&ac=sendmail&rand=17768927020.0 ms461 B

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.

URLEst Savings
www.dismall.com/template/discuz_dismall/image/dzicon.woff21.0 s

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:32.782 source:map[column:42 line:29 type:source-location url:https://www.dismall.com/template/discuz_dismall/image/jquery.min.js?Ibz urlProvider:network]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:395.3 label:Time to first byte subpart:timeToFirstByte] map[duration:8.559 label:Resource load delay subpart:resourceLoadDelay] map[duration:3350.186 label:Resource load duration subpart:resourceLoadDuration] map[duration:27.996 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: div#portal_block_42_content > div.portal_block_summary > a > img
path: 1,HTML,1,BODY,4,DIV,6,DIV,4,DIV,4,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,A,0,IMG
selector: div#portal_block_42_content > div.portal_block_summary > a > img
snippet: <img src="https://www.dismall.com/static/image/logo/x5_1.png" width="100%">

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#portal_block_42_content > div.portal_block_summary > a > img
path: 1,HTML,1,BODY,4,DIV,6,DIV,4,DIV,4,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,A,0,IMG
selector: div#portal_block_42_content > div.portal_block_summary > a > img
snippet: <img src="https://www.dismall.com/static/image/logo/x5_1.png" width="100%">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
www.dismall.com/data/cache/style_4_common.css?Ibz57.5 KiB80 ms
www.dismall.com/template/discuz_dismall/image/jquery.min.js?Ibz37.9 KiB
www.dismall.com/data/cache/common.js?Ibz20.6 KiB
www.dismall.com/data/cache/style_4_forum_index.css?Ibz2.8 KiB
www.dismall.com/data/cache/forum.js?Ibz6.6 KiB

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.

URLResource SizeEst Savings
应用中心 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/6c/common_45_icon.png237.6 KiB236.8 KiB
UCenter td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/ad/common_74_icon.png236.0 KiB235.2 KiB
Discuz! X5 专区 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/14/common_69_icon.png234.9 KiB234.2 KiB
定制、有偿服务 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/d9/common_46_icon.png234.2 KiB233.5 KiB
问题求助 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/f7/common_44_icon.png231.7 KiB231.0 KiB
站长杂谈 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/64/common_48_icon.png229.1 KiB228.3 KiB
Discuz! X 开发文档资料 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/f4/common_49_icon.png229.0 KiB228.3 KiB
程序发布 tr.fl_row > td.fl_icn > a > img
www.dismall.com/data/attachment/common/a5/common_38_icon.png225.2 KiB224.4 KiB
教程指导 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/28/common_51_icon.png225.0 KiB224.3 KiB
Discuz! X 开发者专区 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/67/common_47_icon.png224.6 KiB223.8 KiB
社区公告 tr.fl_row > td.fl_icn > a > img
www.dismall.com/data/attachment/common/19/common_36_icon.png224.5 KiB223.7 KiB
社区新闻 tr > td.fl_icn > a > img
www.dismall.com/data/attachment/common/43/common_81_icon.png221.1 KiB220.3 KiB
Discuz! Q td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/32/common_66_icon.png203.9 KiB203.1 KiB
ul > li > span.kmewm > img ul > li > span.kmewm > img
www.dismall.com/template/discuz_dismall/image/ewm_b.jpg166.0 KiB164.3 KiB
ul > li > span.kmewm > img ul > li > span.kmewm > img
addon.dismall.com/static/img/open/ewm_a.jpg?Ibz126.5 KiB124.7 KiB
Discuz!ᵂ td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/ea/common_64_icon.png121.9 KiB121.2 KiB
WitFrame 云平台 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/03/common_63_icon.png104.2 KiB103.5 KiB
只需 2 分钟开通包含 X5 内核的 Discuz!ᵂ 版 div#portal_block_29_content > div.portal_block_summary > a > img
www.dismall.com/static/image/logo/dzw3.png104.0 KiB100.0 KiB
div#portal_block_56_content > div.portal_block_summary > a > img#apkd div#portal_block_56_content > div.portal_block_summary > a > img#apkd
www.dismall.com/static/image/logo/app.png96.2 KiB92.2 KiB
div#portal_block_42_content > div.portal_block_summary > a > img div#portal_block_42_content > div.portal_block_summary > a > img
www.dismall.com/static/image/logo/x5_1.png61.3 KiB57.3 KiB
ul > li > span.kmewm > img ul > li > span.kmewm > img
addon.dismall.com/static/img/open/ewm_qq.jpg?Ibz62.4 KiB55.5 KiB
Discuz! 官方交流社区 div.comiis_headb_box > div.comiis_headb_l > a.kmlogo > img#boardlogo
www.dismall.com/template/dismall/static/logo.png25.7 KiB25.1 KiB
依法打击整治网络谣言 营造清朗有序网络空间 —— 合肥市公安局网安支队 示 div#portal_block_27 > div#portal_block_27_content > div.portal_block_summary > img
www.dismall.com/data/attachment/portal/202404/11/150100i6w5p4qh71z45pew.jpg14.9 KiB7.5 KiB

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

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 53.5 KiB
URLTransfer SizeEst Savings
www.dismall.com/data/cache/style_4_common.css?Ibz57.3 KiB53.5 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 reasonFailure type
The page has an unload handler in the main frame.Actionable

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: 0.0 ms 21.7 KiB
URLTransfer SizeEst Savings
www.dismall.com/template/discuz_dismall/image/jquery.min.js?Ibz37.8 KiB21.7 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.

URLTransfer Size
www.dismall.com/data/attachment/common/6c/common_45_icon.png238.1 KiB
www.dismall.com/data/attachment/common/ad/common_74_icon.png236.5 KiB
www.dismall.com/data/attachment/common/14/common_69_icon.png235.4 KiB
www.dismall.com/data/attachment/common/d9/common_46_icon.png234.8 KiB
www.dismall.com/data/attachment/common/f7/common_44_icon.png232.2 KiB
www.dismall.com/data/attachment/common/64/common_48_icon.png229.6 KiB
www.dismall.com/data/attachment/common/f4/common_49_icon.png229.5 KiB
www.dismall.com/data/attachment/common/a5/common_38_icon.png225.7 KiB
www.dismall.com/data/attachment/common/28/common_51_icon.png225.5 KiB
www.dismall.com/data/attachment/common/67/common_47_icon.png225.1 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
社区新闻 tr > td.fl_icn > a > img
www.dismall.com/data/attachment/common/43/common_81_icon.png
程序发布 tr.fl_row > td.fl_icn > a > img
www.dismall.com/data/attachment/common/a5/common_38_icon.png
社区公告 tr.fl_row > td.fl_icn > a > img
www.dismall.com/data/attachment/common/19/common_36_icon.png
问题求助 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/f7/common_44_icon.png
教程指导 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/28/common_51_icon.png
站长杂谈 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/64/common_48_icon.png
应用中心 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/6c/common_45_icon.png
Discuz! X5 专区 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/14/common_69_icon.png
定制、有偿服务 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/d9/common_46_icon.png
Discuz! X 开发者专区 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/67/common_47_icon.png
Discuz! X 开发文档资料 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/f4/common_49_icon.png
Discuz!ᵂ td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/ea/common_64_icon.png
WitFrame 云平台 td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/03/common_63_icon.png
UCenter td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/ad/common_74_icon.png
Discuz! Q td.fl_g > div.fl_icn_g > a > img
www.dismall.com/data/attachment/common/32/common_66_icon.png
div#portal_block_42_content > div.portal_block_summary > a > img div#portal_block_42_content > div.portal_block_summary > a > img
www.dismall.com/static/image/logo/x5_1.png
只需 2 分钟开通包含 X5 内核的 Discuz!ᵂ 版 div#portal_block_29_content > div.portal_block_summary > a > img
www.dismall.com/static/image/logo/dzw3.png
div#portal_block_56_content > div.portal_block_summary > a > img#apkd div#portal_block_56_content > div.portal_block_summary > a > img#apkd
www.dismall.com/static/image/logo/app.png
Discuz! 官方交流社区 div.comiis_headb_box > div.comiis_headb_l > a.kmlogo > img#boardlogo
www.dismall.com/template/dismall/static/logo.png
依法打击整治网络谣言 营造清朗有序网络空间 —— 合肥市公安局网安支队 示 div#portal_block_27 > div#portal_block_27_content > div.portal_block_summary > img
www.dismall.com/data/attachment/portal/202404/11/150100i6w5p4qh71z45pew.jpg
star div#flk > p > a > img
gitee.com/Discuz/DiscuzX/badge/star.svg?theme=white

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

●Time to Interactive 2.0 s
●Layout shift culprits
●Document request latency
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Max Potential First Input Delay 20 ms
●Minify CSS
●Minify JavaScript
●JavaScript execution time 0.0 s
●Minimizes main-thread work 0.5 s
●Network Requests
●Network Round Trip Times 250 ms
●Server Backend Latencies 840 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 330 ms
●Avoid large layout shifts 15 layout shifts found
○INP breakdown
○User Timing marks and measures
○Avoid long main-thread tasks
○Avoid non-composited animations
60

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
Discuz!ᵂ td.fl_g > dl > dt > a
手机版|小黑屋|Discuz! 官方交流社区 ( 皖ICP备16010102号 |皖公网安备34010302002376号 )|网站地图| div.comiis_ft > div#ft > div#flk > p
GMT+8, 2026-4-23 05:18, Updated at 2026-04-23 05:18:22, Processed in 0.000164 s… div.comiis_ft > div#ft > div#flk > p.xs0
, Updated at 2026-04-23 05:18:22, Processed in 0.000164 second(s). div#ft > div#flk > p.xs0 > span#debuginfo
Powered by Discuz! X5.0 Licensed div.comiis_ft > div#ft > div#frt > p
© 2001-2026 Discuz! Team. div.comiis_ft > div#ft > div#frt > p.xs0
Discuz! Team div#ft > div#frt > p.xs0 > a

These are opportunities to improve the legibility of your content.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These are opportunities to improve the interpretation of your content by users in different locales.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#an > dl.cl > dt.z > img.vm div#an > dl.cl > dt.z > img.vm
div#portal_block_42_content > div.portal_block_summary > a > img div#portal_block_42_content > div.portal_block_summary > a > img
div#portal_block_56_content > div.portal_block_summary > a > img#apkd div#portal_block_56_content > div.portal_block_summary > a > img#apkd
ul > li > span.kmewm > img ul > li > span.kmewm > img
ul > li > span.kmewm > img ul > li > span.kmewm > img
ul > li > span.kmewm > img ul > li > span.kmewm > img
div#flk > p > a > img div#flk > p > a > img

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#portal_block_42 > div#portal_block_42_content > div.portal_block_summary > a div#portal_block_42 > div#portal_block_42_content > div.portal_block_summary > a
div#portal_block_56 > div#portal_block_56_content > div.portal_block_summary > a div#portal_block_56 > div#portal_block_56_content > div.portal_block_summary > a
body#nv_forum > div#comiis_rnav > a#comiis_add_css body#nv_forum > div#comiis_rnav > a#comiis_add_css
body#nv_forum > div#comiis_rnav > a.comiis_rpost body#nv_forum > div#comiis_rnav > a.comiis_rpost

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.

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
首页 div#comiis_tnv > div.comiis_headb_box > div.comiis_headb_nv > li#mn_N01fa
社区 div#comiis_tnv > div.comiis_headb_box > div.comiis_headb_nv > li#mn_forum
点滴 div#comiis_tnv > div.comiis_headb_box > div.comiis_headb_nv > li#mn_N48ee
教程 div#comiis_tnv > div.comiis_headb_box > div.comiis_headb_nv > li#mn_N269d
服务 div#comiis_tnv > div.comiis_headb_box > div.comiis_headb_nv > li#mn_Nffa1
应用中心 div#comiis_tnv > div.comiis_headb_box > div.comiis_headb_nv > li#mn_N3c66
云服务器 div#comiis_tnv > div.comiis_headb_box > div.comiis_headb_nv > li#mn_N1781

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

Best practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

Screen readers have features to make navigating tables easier. Ensuring that `<td>` elements in a large table (3 or more cells in width and height) have an associated table header may improve the experience for screen reader users. Learn more about table headers.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
社区新闻 Discuz! 最新的新闻专题区 16 / 227 X5 开源版更新日志 前天 17:52 柔性正骨 程序发布 最新版本发布下… div.comiis_flbm > div.bm > div#category_73 > table.fl_tb
○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-hidden="true"]` is not present on the document `<body>`
●`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
●Definition list items are wrapped in `<dl>` elements
●Document has a `<title>` element
●Links are distinguishable without relying on color.
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●Touch targets have sufficient size and spacing.
●Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
●Heading elements appear in a sequentially-descending order
●Identical links have the same purpose.
●Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`[accesskey]` values are unique
○`[aria-*]` attributes match their roles
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA attributes are used as specified for the element's role
○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
○Elements use only permitted ARIA attributes
○`[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
○`[aria-*]` attributes have valid values
○`[aria-*]` attributes are valid and not misspelled
○Buttons have an accessible name
○The page contains a heading, skip link, or landmark region
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has a valid value for its `[lang]` attribute
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○`<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.
○Elements with visible text labels have matching accessible names.
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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.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
div#portal_block_56_content > div.portal_block_summary > div#apkd_menu > img div#portal_block_56_content > div.portal_block_summary > div#apkd_menu > img
www.dismall.com/static/image/logo/DiscuzOfficial.apk.png282 x 300 (0.94)300 x 300 (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 / WarningSource
Unload event listeners are deprecated and will be removed.
hm.baidu.com/hm.js?9096201b4402bd8eccc0024f04f7bd48 line 1, col 274

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
www.dismall.com/uc_server/data/avatar/000/00/00/00_avatar_middle.jpg
Failed to load resource: the server responded with a status of 404 ()
●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 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
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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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
body#nv_forum > div#scrolltop > span > a.scrolltopa body#nv_forum > div#scrolltop > span > a.scrolltopa

To appear in search results, crawlers need access to your app.

Content Best Practices

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#an > dl.cl > dt.z > img.vm div#an > dl.cl > dt.z > img.vm
div#portal_block_42_content > div.portal_block_summary > a > img div#portal_block_42_content > div.portal_block_summary > a > img
div#portal_block_56_content > div.portal_block_summary > a > img#apkd div#portal_block_56_content > div.portal_block_summary > a > img#apkd
ul > li > span.kmewm > img ul > li > span.kmewm > img
ul > li > span.kmewm > img ul > li > span.kmewm > img
ul > li > span.kmewm > img ul > li > span.kmewm > img
div#flk > p > a > img div#flk > p > a > img

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
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●robots.txt is valid
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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