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Lighthouse Desktop

· 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.

56

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.22.cn/content/css/main.css?t=202212280.0 ms288.6 KiB
www.22.cn/content/images/new_bg.jpg0.0 ms239.1 KiB
ad-img-show.22.cn/0-20260410093229649.jpg0.0 ms172.5 KiB
www.22.cn/Content/bootstrap/dist/css/bootstrap.min.css0.0 ms118.8 KiB
ad-img-show.22.cn/0-20260107151909236.jpg0.0 ms115.5 KiB
ad-img-show.22.cn/0-20230526142131149.jpg0.0 ms99.3 KiB
www.22.cn/content/js/jquery-1.10.2.js0.0 ms91.2 KiB
ad-img-show.22.cn/0-20260410093320462.jpg0.0 ms89.7 KiB
ad-img-show.22.cn/0-20260107151920277.jpg0.0 ms80.3 KiB
ad-img-show.22.cn/0-20260421172452620.jpg0.0 ms66.2 KiB
ad-img-show.22.cn/0-20230526142516929.jpg0.0 ms64.0 KiB
www.22.cn/content/images/icon_home.png0.0 ms59.2 KiB
www.22.cn/content/images/topmenu/top_menu_4.jpg0.0 ms59.0 KiB
www.22.cn/images/qiyejia.jpg0.0 ms58.9 KiB
ad-img-show.22.cn/0-20260421172532527.jpg0.0 ms56.8 KiB
ad-img-show.22.cn/0-20260302144829869.jpg0.0 ms54.9 KiB
www.22.cn/content/js/jquery.flexslider.js0.0 ms54.3 KiB
www.22.cn/content/images/topmenu/top_menu_7.jpg0.0 ms54.3 KiB
ad-img-show.22.cn/0-20220422105211816.jpg0.0 ms52.9 KiB
www.22.cn/content/images/topmenu/top_menu_1.jpg0.0 ms51.5 KiB
www.22.cn/Content/js/bootstrap.min.js0.0 ms47.8 KiB
ad-img-show.22.cn/1cb71a4c1f4c46bba13deff2d33d30d5.jpg0.0 ms42.5 KiB
www.22.cn/images/miyouqun.jpg0.0 ms39.7 KiB
www.22.cn/content/images/topmenu/top_menu_3.jpg0.0 ms37.6 KiB
www.22.cn/content/images/app_qr_top.png0.0 ms37.0 KiB
www.22.cn/Content/bootstrap/dist/js/bootstrap.min.js0.0 ms36.4 KiB
www.22.cn/content/images/22zsl.png0.0 ms36.4 KiB
ad-img-show.22.cn/0-20260302144841682.jpg0.0 ms34.5 KiB
www.22.cn/content/images/topmenu/top_menu_9.jpg0.0 ms33.0 KiB
www.22.cn/content/images/topmenu/topmun_gw_20200630.jpg0.0 ms32.2 KiB
www.22.cn/content/images/topmenu/top_menu_8.jpg0.0 ms29.2 KiB
www.22.cn/images/weixin_xcx.jpg0.0 ms24.9 KiB
www.22.cn/content/images/footerimg.jpg0.0 ms22.6 KiB
www.22.cn/content/images/brand_register_pic1.jpg0.0 ms22.4 KiB
www.22.cn/Content/layer/layer.js0.0 ms21.9 KiB
ad-img-show.22.cn/0-20251215175118802.jpg0.0 ms21.9 KiB
www.22.cn/content/images/topmenu/top_menu_2.jpg0.0 ms19.8 KiB
ad-img-show.22.cn/0-20251225113153446.jpg0.0 ms19.5 KiB
www.22.cn/content/images/ghs.png0.0 ms19.1 KiB
www.22.cn/content/images/topmenu/top_menu_6.jpg0.0 ms17.9 KiB
www.22.cn/content/images/xiaochengxu_wsp.jpg0.0 ms16.5 KiB
www.22.cn/content/images/zsl.png0.0 ms16.3 KiB
www.22.cn/Content/layer/theme/default/layer.css?v=3.1.10.0 ms14.3 KiB
www.22.cn/content/js/index.js?v=1205202604230.0 ms14.3 KiB
www.22.cn/content/images/customer6.png0.0 ms13.0 KiB
www.22.cn/content/images/topmenu/top_menu_4_1.jpg0.0 ms12.9 KiB
www.22.cn/Content/js/_top.js?t=202211180.0 ms12.6 KiB
www.22.cn/content/images/kefu_qiye_multi.png0.0 ms10.7 KiB
www.22.cn/Content/images/logo.png0.0 ms10.1 KiB
www.22.cn/images/kh_dzh.jpg0.0 ms9.8 KiB
www.22.cn/content/images/customer3.png0.0 ms9.3 KiB
www.22.cn/content/images/weixin_xcx.jpg0.0 ms8.9 KiB
www.22.cn/images/kh_dsq.jpg0.0 ms8.7 KiB
www.22.cn/content/images/customer1.png0.0 ms8.6 KiB
www.22.cn/images/weixin_sidebar.jpg0.0 ms8.1 KiB
www.22.cn/images/icon_promise_1_hover.png0.0 ms8.0 KiB
www.22.cn/images/weixin_nav(1).jpg0.0 ms7.7 KiB
www.22.cn/content/images/weixin_nav.jpg0.0 ms7.7 KiB
www.22.cn/content/images/customer2.png0.0 ms7.5 KiB
www.22.cn/images/kh_uts.jpg0.0 ms7.4 KiB
www.22.cn/images/kh_xh.jpg0.0 ms7.0 KiB
www.22.cn/images/kh_mzc.jpg0.0 ms7.0 KiB
www.22.cn/images/icon_promise_1.png0.0 ms6.9 KiB
www.22.cn/Content/layer/layer.ex.js?v=202405100.0 ms6.6 KiB
www.22.cn/Content/images/small_logo.png0.0 ms6.4 KiB
www.22.cn/images/kh_hs.jpg0.0 ms6.3 KiB
www.22.cn/js/SSOControl.js?t=201611170.0 ms6.2 KiB
www.22.cn/content/images/customer5.png0.0 ms6.2 KiB
www.22.cn/images/phone_icon.png0.0 ms5.9 KiB
www.22.cn/images/icon_promise_3.png0.0 ms5.6 KiB
www.22.cn/images/icon_promise_3_hover.png0.0 ms5.5 KiB
www.22.cn/content/images/home_icon/ssl_sectigo.png0.0 ms5.2 KiB
www.22.cn/content/images/customer4.png0.0 ms5.0 KiB
www.22.cn/images/icon_promise_2_hover.png0.0 ms3.8 KiB
www.22.cn/content/js/common.js?t=202203150.0 ms3.8 KiB
www.22.cn/images/icon_promise_2.png0.0 ms3.7 KiB
www.22.cn/content/images/home_icon/qyx_title_tp.png0.0 ms3.4 KiB
www.22.cn/content/js/ai.js0.0 ms3.3 KiB
www.22.cn/content/images/hot_new_title.png0.0 ms3.1 KiB
www.22.cn/images/icon_single_safe.png0.0 ms2.9 KiB
www.22.cn/images/icon_single_facile.png0.0 ms2.8 KiB
www.22.cn/images/icon_single_fast.png0.0 ms2.7 KiB
www.22.cn/images/icon_single_am01.png0.0 ms2.5 KiB
www.22.cn/content/bootstrap/assets/js/ie-emulation-modes-warning.js0.0 ms2.4 KiB
www.22.cn/Content/layer/theme/am/style.css0.0 ms2.3 KiB
www.22.cn/content/images/zzxxw.png0.0 ms2.3 KiB
www.22.cn/content/images/home_icon/bm_reg.png0.0 ms2.2 KiB
www.22.cn/content/images/home_icon/tip_icon.png0.0 ms2.1 KiB
www.22.cn/images/kf_weixin.png0.0 ms2.0 KiB
www.22.cn/content/images/home_icon/brand_zr.png0.0 ms2.0 KiB
www.22.cn/content/images/home_icon/brand_xz.png0.0 ms2.0 KiB
www.22.cn/content/images/home_icon/guoji_brand.png0.0 ms2.0 KiB
www.22.cn/content/images/home_icon/meishu_zz.png0.0 ms1.9 KiB
www.22.cn/content/images/home_icon/brand_fs.png0.0 ms1.8 KiB
www.22.cn/images/icon_single_am02.png0.0 ms1.8 KiB
www.22.cn/images/icon_single_am03.png0.0 ms1.8 KiB
www.22.cn/content/images/home_icon/pt_reg.png0.0 ms1.8 KiB
www.22.cn/images/kf_gzh.png0.0 ms1.8 KiB
www.22.cn/images/kf_xcx.png0.0 ms1.7 KiB
www.22.cn/images/kf_tel.png0.0 ms1.6 KiB
www.22.cn/content/images/home_icon/ruanjian_zz.png0.0 ms1.6 KiB
www.22.cn/images/kf_app.png0.0 ms1.6 KiB
www.22.cn/content/images/serch_icon.png0.0 ms1.6 KiB
www.22.cn/images/kf_qq.png0.0 ms1.5 KiB
www.22.cn/content/images/home_icon/font_zz.png0.0 ms1.5 KiB
www.22.cn/images/wx_icon.png0.0 ms1.3 KiB
www.22.cn/images/wx.png0.0 ms1.2 KiB
www.22.cn/images/wx2.png0.0 ms1.1 KiB
www.22.cn/images/kf_top.png0.0 ms1.1 KiB
www.22.cn/Content/js/am.extend.js?t=202009220.0 ms1.0 KiB
www.22.cn/Content/js/jquery.cookie.js0.0 ms988 B
www.22.cn/content/images/icon_youhui.png0.0 ms521 B
www.22.cn/content/images/ltdnews.png0.0 ms510 B
w.cnzz.com/c.php?id=906087&async=190.0 s375 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.

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:88.156 source:map[column:27902 line:6 type:source-location url:https://www.22.cn/content/js/jquery-1.10.2.js urlProvider:network]] map[reflowTime:0.368 source:map[column:5688 line:6 type:source-location url:https://www.22.cn/content/js/jquery-1.10.2.js urlProvider:network]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:1608.1370009765626 label:Time to first byte subpart:timeToFirstByte] map[duration:3259.6039990234376 label:Resource load delay subpart:resourceLoadDelay] map[duration:2391.42 label:Resource load duration subpart:resourceLoadDuration] map[duration:53.048 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-DIV
nodeLabel: 资讯热点 域名资讯我要爆料 更多>> [04-22]优质拼音域名再掀抢购潮：xiong.com以七位数高价易主 [04-22]硅基流动是什么AI平台？有哪些核…
path: 1,HTML,1,BODY,0,DIV,30,DIV,0,DIV
selector: body > div.homepage > div#section-news > div.news-bg
snippet: <div class="news-bg">

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-DIV
nodeLabel: 资讯热点 域名资讯我要爆料 更多>> [04-22]优质拼音域名再掀抢购潮：xiong.com以七位数高价易主 [04-22]硅基流动是什么AI平台？有哪些核…
path: 1,HTML,1,BODY,0,DIV,30,DIV,0,DIV
selector: body > div.homepage > div#section-news > div.news-bg
snippet: <div class="news-bg">

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.

URLProtocol
www.22.cn/http/1.1
www.22.cn/Content/bootstrap/dist/css/bootstrap.min.csshttp/1.1
www.22.cn/content/js/jquery-1.10.2.jshttp/1.1
www.22.cn/content/js/common.js?t=20220315http/1.1
www.22.cn/Content/bootstrap/dist/js/bootstrap.min.jshttp/1.1
www.22.cn/Content/js/jquery.cookie.jshttp/1.1
www.22.cn/content/css/main.css?t=20221228http/1.1
www.22.cn/content/bootstrap/assets/js/ie-emulation-modes-warning.jshttp/1.1
www.22.cn/Content/js/bootstrap.min.jshttp/1.1
www.22.cn/Content/layer/layer.jshttp/1.1
www.22.cn/Content/layer/layer.ex.js?v=20240510http/1.1
www.22.cn/Content/js/am.extend.js?t=20200922http/1.1
www.22.cn/images/weixin_nav(1).jpghttp/1.1
www.22.cn/content/images/app_qr_top.pnghttp/1.1
www.22.cn/content/images/xiaochengxu_wsp.jpghttp/1.1
www.22.cn/Content/js/_top.js?t=20221118http/1.1
www.22.cn/js/SSOControl.js?t=20161117http/1.1
www.22.cn/Content/images/logo.pnghttp/1.1
www.22.cn/Content/images/small_logo.pnghttp/1.1
www.22.cn/content/images/zsl.pnghttp/1.1
www.22.cn/images/wx_icon.pnghttp/1.1
www.22.cn/content/images/kefu_qiye_multi.pnghttp/1.1
www.22.cn/images/phone_icon.pnghttp/1.1
www.22.cn/content/images/topmenu/top_menu_1.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_2.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_3.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_9.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_4.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_4_1.jpghttp/1.1
www.22.cn/content/images/topmenu/topmun_gw_20200630.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_6.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_7.jpghttp/1.1
www.22.cn/content/images/topmenu/top_menu_8.jpghttp/1.1
www.22.cn/content/images/brand_register_pic1.jpghttp/1.1
www.22.cn/images/icon_single_am01.pnghttp/1.1
www.22.cn/images/icon_single_facile.pnghttp/1.1
www.22.cn/images/icon_single_am02.pnghttp/1.1
www.22.cn/images/icon_single_am03.pnghttp/1.1
www.22.cn/images/icon_single_safe.pnghttp/1.1
www.22.cn/images/icon_single_fast.pnghttp/1.1
www.22.cn/content/images/hot_new_title.pnghttp/1.1
www.22.cn/content/images/zzxxw.pnghttp/1.1
www.22.cn/content/images/customer1.pnghttp/1.1
www.22.cn/content/images/customer3.pnghttp/1.1
www.22.cn/content/images/customer4.pnghttp/1.1
www.22.cn/images/kh_mzc.jpghttp/1.1
www.22.cn/images/kh_uts.jpghttp/1.1
www.22.cn/images/kh_xh.jpghttp/1.1
www.22.cn/content/images/customer6.pnghttp/1.1
www.22.cn/images/kh_hs.jpghttp/1.1
www.22.cn/content/images/customer2.pnghttp/1.1
www.22.cn/images/kh_dsq.jpghttp/1.1
www.22.cn/images/kh_dzh.jpghttp/1.1
www.22.cn/content/images/customer5.pnghttp/1.1
www.22.cn/images/icon_promise_1.pnghttp/1.1
www.22.cn/images/icon_promise_1_hover.pnghttp/1.1
www.22.cn/images/icon_promise_2.pnghttp/1.1
www.22.cn/images/icon_promise_2_hover.pnghttp/1.1
www.22.cn/images/icon_promise_3.pnghttp/1.1
www.22.cn/images/icon_promise_3_hover.pnghttp/1.1
www.22.cn/content/images/weixin_nav.jpghttp/1.1
www.22.cn/content/images/weixin_xcx.jpghttp/1.1
www.22.cn/images/wx.pnghttp/1.1
www.22.cn/images/wx2.pnghttp/1.1
www.22.cn/images/miyouqun.jpghttp/1.1
www.22.cn/images/qiyejia.jpghttp/1.1
www.22.cn/content/images/ghs.pnghttp/1.1
www.22.cn/content/images/22zsl.pnghttp/1.1
www.22.cn/images/kf_weixin.pnghttp/1.1
www.22.cn/images/kf_qq.pnghttp/1.1
www.22.cn/images/kf_app.pnghttp/1.1
www.22.cn/images/weixin_sidebar.jpghttp/1.1
www.22.cn/images/kf_xcx.pnghttp/1.1
www.22.cn/images/weixin_xcx.jpghttp/1.1
www.22.cn/images/kf_tel.pnghttp/1.1
www.22.cn/images/kf_gzh.pnghttp/1.1
www.22.cn/images/kf_top.pnghttp/1.1
www.22.cn/content/js/jquery.flexslider.jshttp/1.1
www.22.cn/content/js/index.js?v=120520260423http/1.1
www.22.cn/content/js/ai.jshttp/1.1
www.22.cn/Content/layer/theme/default/layer.css?v=3.1.1http/1.1
www.22.cn/Content/layer/theme/am/style.csshttp/1.1
www.22.cn/content/images/icon_home.pnghttp/1.1
www.22.cn/content/images/serch_icon.pnghttp/1.1
www.22.cn/content/images/ltdnews.pnghttp/1.1
www.22.cn/content/images/icon_youhui.pnghttp/1.1
www.22.cn/content/images/home_icon/tip_icon.pnghttp/1.1
www.22.cn/content/images/home_icon/bm_reg.pnghttp/1.1
www.22.cn/content/images/home_icon/pt_reg.pnghttp/1.1
www.22.cn/content/images/home_icon/guoji_brand.pnghttp/1.1
www.22.cn/content/images/home_icon/brand_xz.pnghttp/1.1
www.22.cn/content/images/home_icon/brand_fs.pnghttp/1.1
www.22.cn/content/images/home_icon/brand_zr.pnghttp/1.1
www.22.cn/content/images/home_icon/ruanjian_zz.pnghttp/1.1
www.22.cn/content/images/home_icon/meishu_zz.pnghttp/1.1
www.22.cn/content/images/home_icon/font_zz.pnghttp/1.1
www.22.cn/content/images/home_icon/ssl_sectigo.pnghttp/1.1
www.22.cn/content/images/home_icon/qyx_title_tp.pnghttp/1.1
www.22.cn/content/images/new_bg.jpghttp/1.1
www.22.cn/content/images/footerimg.jpghttp/1.1
www.22.cn/ajax/zixun/zixun.ashx?t=0.027906636260455975http/1.1
www.22.cn/favicon.icohttp/1.1

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.

URLTransfer SizeDuration
www.22.cn/content/css/main.css?t=20221228288.6 KiB1.8 s
www.22.cn/Content/layer/layer.js21.9 KiB1.1 s
www.22.cn/Content/js/bootstrap.min.js47.8 KiB1.3 s
www.22.cn/content/js/jquery-1.10.2.js91.2 KiB1.6 s
www.22.cn/Content/js/am.extend.js?t=202009221.0 KiB302 ms
www.22.cn/Content/bootstrap/dist/css/bootstrap.min.css118.8 KiB1.1 s
www.22.cn/Content/layer/layer.ex.js?v=202405106.6 KiB803 ms
www.22.cn/Content/bootstrap/dist/js/bootstrap.min.js36.4 KiB1.1 s
www.22.cn/content/bootstrap/assets/js/ie-emulation-modes-warning.js2.4 KiB803 ms
www.22.cn/Content/js/jquery.cookie.js988 B803 ms
www.22.cn/content/js/common.js?t=202203153.8 KiB803 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.

URLResource SizeEst Savings
body > div > div#webChat-bubble-tip body > div > div#webChat-bubble-tip
/imgextra/i2/O1CN01Pda9nq1YDV0mnZ31H_!!6000000003025-54-t...1.5 MiB1.5 MiB
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ad-img-show.22.cn/0-20220422105211816.jpg52.4 KiB45.8 KiB
ul.slides > li.flex-active-slide > a > span.hidden-xs ul.slides > li.flex-active-slide > a > span.hidden-xs
ad-img-show.22.cn/0-20260410093229649.jpg171.8 KiB43.7 KiB
div.banner-search > div.search-trade > a.hidden-xs > span.icon-search-trade div.banner-search > div.search-trade > a.hidden-xs > span.icon-search-trade
www.22.cn/content/images/icon_home.png58.9 KiB36.2 KiB
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ad-img-show.22.cn/1cb71a4c1f4c46bba13deff2d33d30d5.jpg41.9 KiB35.3 KiB
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ad-img-show.22.cn/0-20251215175118802.jpg21.4 KiB14.8 KiB
div.menu-logo-content > div > a > img.hidden-xs div.menu-logo-content > div > a > img.hidden-xs
www.22.cn/content/images/zsl.png16.0 KiB14.5 KiB
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ad-img-show.22.cn/0-20251225113153446.jpg19.0 KiB12.5 KiB
div.menu-logo-content > div.logo > a > img.hidden-xs div.menu-logo-content > div.logo > a > img.hidden-xs
www.22.cn/Content/images/logo.png9.9 KiB8.6 KiB
div.text > div.text-list > h3 > span.ymx-title div.text > div.text-list > h3 > span.ymx-title
www.22.cn/content/images/home_icon/ssl_sectigo.png5.0 KiB4.5 KiB
ul > li > a > img ul > li > a > img
www.22.cn/images/phone_icon.png5.6 KiB4.3 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: 897 ms
URLTime Spent
22.cn/897 ms
www.22.cn/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

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 500 ms 108.3 KiB
URLTransfer SizeEst Savings
www.22.cn/content/css/main.css?t=20221228288.6 KiB108.3 KiB

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: 680 ms 362.7 KiB
URLTransfer SizeEst Savings
www.22.cn/content/css/main.css?t=20221228288.3 KiB236.7 KiB
www.22.cn/Content/bootstrap/dist/css/bootstrap.min.css118.5 KiB112.0 KiB
www.22.cn/Content/layer/theme/default/layer.css?v=3.1.114.0 KiB14.0 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

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 47.6 KiB
URLTransfer SizeEst Savings
www.22.cn/content/js/jquery.flexslider.js54.0 KiB23.3 KiB
www.22.cn/Content/js/bootstrap.min.js47.5 KiB11.4 KiB
www.22.cn/content/js/index.js?v=12052026042314.0 KiB6.5 KiB
www.22.cn/Content/js/_top.js?t=2022111812.3 KiB4.0 KiB
www.22.cn/Content/layer/layer.ex.js?v=202405106.3 KiB2.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 214.4 KiB
URLTransfer SizeEst Savings
g.alicdn.com/aliyun-documentation/web-chatbot-ui/0.0.24/index.js156.5 KiB97.8 KiB
www.22.cn/Content/js/bootstrap.min.js47.5 KiB39.5 KiB
www.22.cn/Content/bootstrap/dist/js/bootstrap.min.js36.1 KiB29.6 KiB
www.22.cn/content/js/jquery-1.10.2.js90.9 KiB27.4 KiB
www.22.cn/content/js/jquery.flexslider.js54.0 KiB20.0 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
/imgextra/i2/O1CN01Pda9nq1YDV0mnZ31H_!!6000000003025-54-t...1.5 MiB
www.22.cn/content/css/main.css?t=20221228288.6 KiB
www.22.cn/246.9 KiB
www.22.cn/content/images/new_bg.jpg239.1 KiB
ad-img-show.22.cn/0-20260410093229649.jpg172.5 KiB
g.alicdn.com/aliyun-documentation/web-chatbot-ui/0.0.24/index.js157.2 KiB
www.22.cn/Content/bootstrap/dist/css/bootstrap.min.css118.8 KiB
ad-img-show.22.cn/0-20260107151909236.jpg115.5 KiB
ad-img-show.22.cn/0-20230526142131149.jpg99.3 KiB
www.22.cn/content/js/jquery-1.10.2.js91.2 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
li.service-kefu > div.service-detail > div > img li.service-kefu > div.service-detail > div > img
www.22.cn/content/images/kefu_qiye_multi.png
div.main-container > div > a > img div.main-container > div > a > img
www.22.cn/content/images/22zsl.png
li.service-wechat > div.service-detail > div > img li.service-wechat > div.service-detail > div > img
www.22.cn/images/weixin_xcx.jpg
li.service-wechat > div.service-detail > div > img li.service-wechat > div.service-detail > div > img
www.22.cn/images/weixin_nav(1).jpg
div.menu-logo-content > div > a > img.hidden-xs div.menu-logo-content > div > a > img.hidden-xs
www.22.cn/content/images/zsl.png
ul.service-list > li.service-app > div.service-detail > img ul.service-list > li.service-app > div.service-detail > img
www.22.cn/images/weixin_sidebar.jpg
div.menu-logo-content > div.logo > a > img.hidden-xs div.menu-logo-content > div.logo > a > img.hidden-xs
www.22.cn/Content/images/logo.png
ul > li > a > img ul > li > a > img
www.22.cn/images/phone_icon.png
div.service-bar > ul.service-list > li.service-app > img.icon-img div.service-bar > ul.service-list > li.service-app > img.icon-img
www.22.cn/images/kf_app.png
ul.service-list > a > li.service-qq > img.icon-img ul.service-list > a > li.service-qq > img.icon-img
www.22.cn/images/kf_qq.png
div.service-bar > ul.service-list > li.service-kefu > img.icon-img div.service-bar > ul.service-list > li.service-kefu > img.icon-img
www.22.cn/images/kf_weixin.png
div.service-bar > ul.service-list > li.service-wechat > img.icon-img div.service-bar > ul.service-list > li.service-wechat > img.icon-img
www.22.cn/images/kf_xcx.png
div.service-bar > ul.service-list > li.service-phone > img.icon-img div.service-bar > ul.service-list > li.service-phone > img.icon-img
www.22.cn/images/kf_tel.png
div.service-bar > ul.service-list > li.service-wechat > img.icon-img div.service-bar > ul.service-list > li.service-wechat > img.icon-img
www.22.cn/images/kf_gzh.png
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
www.22.cn/images/icon_single_am01.png
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
www.22.cn/images/icon_single_facile.png
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
www.22.cn/images/icon_single_am02.png
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
www.22.cn/images/icon_single_am03.png
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
www.22.cn/images/icon_single_safe.png
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
www.22.cn/images/icon_single_fast.png
li.weixing > div.weixin214 > div.wxicon > img li.weixing > div.weixin214 > div.wxicon > img
www.22.cn/images/wx_icon.png
li.weixing > div.weixin214 > div.wxicon > img li.weixing > div.weixin214 > div.wxicon > img
www.22.cn/images/wx_icon.png
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
www.22.cn/images/wx.png
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
www.22.cn/images/wx2.png
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
www.22.cn/images/wx.png
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
www.22.cn/images/wx2.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
●Optimize viewport for mobile
●Max Potential First Input Delay 20 ms
●JavaScript execution time 0.1 s
●Minimizes main-thread work 0.8 s
●Avoid long main-thread tasks 1 long task found
●Network Requests
●Network Round Trip Times 250 ms
●Server Backend Latencies 630 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 450 ms
●Avoid large layout shifts 8 layout shifts found
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
69

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

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
div.flexslider1 > div.flex-viewport > ul.slides > li.clone div.flexslider1 > div.flex-viewport > ul.slides > li.clone
div.flexslider1 > div.flex-viewport > ul.slides > li.clone div.flexslider1 > div.flex-viewport > ul.slides > li.clone
从“超级个体”到“品牌帝国”：OPC时代，域名与网站为何是最后的护城河？ div.information-list > div.flex-viewport > ul.slides > li.clone
优质拼音域名再掀抢购潮：xiong.com以七位数高价易主 div.information-list > div.flex-viewport > ul.slides > li.clone
关于部分商标服务业务价格调整的通知 div.notice-list > div.flex-viewport > ul.slides > li.clone
关于我司交易站400电话合并的公告 div.notice-list > div.flex-viewport > ul.slides > li.clone

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.

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
div.search-wrap > div.search-tab-header > div.search-tab-button > input#searchWrapBtn div.search-wrap > div.search-tab-header > div.search-tab-button > input#searchWrapBtn
1对1专属客服 ul > li.weixing > div > p
SSL证书 div#navbar > ul.nav > li > a
div.main-container > div.banner-search > div.search-input > input.search-text div.main-container > div.banner-search > div.search-input > input.search-text
4月域名促销，注册15元起 div.flex-viewport > ul.slides > li.activity-list > a.hui
ePower快速布局企业市场 div.flex-viewport > ul.slides > li.activity-list > a.hui
499 div.text > div.text-list > div.price > span.font-18
300 div.text > div.text-list > div.price > span.font-18
2700 div.text > div.text-list > div.price > span.font-18
790 div.text > div.text-list > div.price > span.font-18
1749 div.text > div.text-list > div.price > span.font-18
950 div.text > div.text-list > div.price > span.font-18
490 div.text > div.text-list > div.price > span.font-18
650 div.text > div.text-list > div.price > span.font-18
650 div.text > div.text-list > div.price > span.font-18
350 div.text > div.text-list > div.price > span.font-18
800 div.text > div.text-list > div.price > span.font-18
2200 div.text > div.text-list > div.price > span.font-18
2980 div.text > div.text-list > div.price > span.font-18
4980 div.text > div.text-list > div.price > span.font-18
1980 div.text > div.text-list > div.price > span.font-18
780 div.text > div.text-list > div.price > span.font-18
990 div.text > div.text-list > div.price > span.font-18
1635 div.text > div.text-list > div.price > span.font-18
109元 div.text-list > div.price > span > span.font-18
259元 div.text-list > div.price > span > span.font-18
329元 div.text-list > div.price > span > span.font-18
20G免费网络防御 div.text > div.text-list > p > span.redt
230 div.text > div.text-list > div.price > span.font-18
20G免费网络防御 div.text > div.text-list > p > span.redt
472 div.text > div.text-list > div.price > span.font-18
20G免费网络防御 div.text > div.text-list > p > span.redt
1268 div.text > div.text-list > div.price > span.font-18
188 div.text > div.text-list > div.price > span.font-18
500 div.text > div.text-list > div.price > span.font-18
1000 div.text > div.text-list > div.price > span.font-18
3300 div.text > div.text-list > div.price > span.font-18
3800 div.text > div.text-list > div.price > span.font-18
4000 div.text > div.text-list > div.price > span.font-18
300 div.text > div.text-list > div.price > span.font-18
500 div.text > div.text-list > div.price > span.font-18
1000 div.text > div.text-list > div.price > span.font-18
[04-22] div.info-box-list > ul > li > span
[04-22] div.info-box-list > ul > li > span
[04-22] div.info-box-list > ul > li > span
[04-21] div.info-box-list > ul > li > span
[04-21] div.info-box-list > ul > li > span
[04-20] div.info-box-list > ul > li > span
[03-20] div.info-box-list > ul > li > span
[02-12] div.info-box-list > ul > li > span
[08-19] div.info-box-list > ul > li > span
[08-12] div.info-box-list > ul > li > span
[08-11] div.info-box-list > ul > li > span
[05-28] div.info-box-list > ul > li > span
[04-22] div.info-box-list > ul > li > span
[04-21] div.info-box-list > ul > li > span
[04-20] div.info-box-list > ul > li > span
[04-19] div.info-box-list > ul > li > span
[04-18] div.info-box-list > ul > li > span
[04-17] div.info-box-list > ul > li > span
SSL证书 div.friendlink > dl > dd > a
22商标宝 div.friendlink > dl > dd > a
Epower企服引擎 | 龙井茶 | AI建站 | DMP | ToB问答 | 商标注册 | 营销SaaS | 32知协 | 第一商务 | 商标软件 | 代理… div.main-container > div.friendlink > dl > dd
Epower企服引擎 div.friendlink > dl > dd > a
AI建站 div.friendlink > dl > dd > a
DMP div.friendlink > dl > dd > a
ToB问答 div.friendlink > dl > dd > a
32知协 div.friendlink > dl > dd > a
杭州网站建设 | 宁波网站建设 | 温州网站建设 | 绍兴网站建设 | 杭州商标注册 | 杭州虚拟主机 | 杭州SSL证书 | 宁波域名注册 | 宁波商标注册… div.main-container > div.friendlink > dl > dd

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.menu-logo-content > div.logo > a > img.hidden-xs div.menu-logo-content > div.logo > a > img.hidden-xs
div.menu-logo-content > div > a > img.hidden-xs div.menu-logo-content > div > a > img.hidden-xs
li.weixing > div.weixin214 > div.wxicon > img li.weixing > div.weixin214 > div.wxicon > img
li.weixing > div.weixin214 > div.wxicon > img li.weixing > div.weixin214 > div.wxicon > img
ul > li > a > img ul > li > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
div.about-list-text > div.wei > div.wei-guanzhu > img.code-block div.about-list-text > div.wei > div.wei-guanzhu > img.code-block
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
div.footer-text-sm > p.text > a > img div.footer-text-sm > p.text > a > img
div.main-container > div > a > img div.main-container > div > a > img
div.service-bar > ul.service-list > li.service-kefu > img.icon-img div.service-bar > ul.service-list > li.service-kefu > img.icon-img
ul.service-list > a > li.service-qq > img.icon-img ul.service-list > a > li.service-qq > img.icon-img
div.service-bar > ul.service-list > li.service-app > img.icon-img div.service-bar > ul.service-list > li.service-app > img.icon-img
div.service-bar > ul.service-list > li.service-wechat > img.icon-img div.service-bar > ul.service-list > li.service-wechat > img.icon-img
div.service-bar > ul.service-list > li.service-phone > img.icon-img div.service-bar > ul.service-list > li.service-phone > img.icon-img
div.service-bar > ul.service-list > li.service-wechat > img.icon-img div.service-bar > ul.service-list > li.service-wechat > img.icon-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.menu-content > div.menu-logo-content > div.logo > a div.menu-content > div.menu-logo-content > div.logo > a
div.service-iphone > ul > li > a div.service-iphone > ul > li > a
div.main-container > div.banner-search > div.search-trade > a.hidden-xs div.main-container > div.banner-search > div.search-trade > a.hidden-xs
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li.flex-active-slide > a div.flex-viewport > ul.slides > li.flex-active-slide > a
div.flex-viewport > ul.slides > li.flex-active-slide > a div.flex-viewport > ul.slides > li.flex-active-slide > a
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li > a div.flex-viewport > ul.slides > li > a
div.flex-viewport > ul.slides > li.activity-list > a div.flex-viewport > ul.slides > li.activity-list > a
div.flex-viewport > ul.slides > li.activity-list > a div.flex-viewport > ul.slides > li.activity-list > a
div.flex-viewport > ul.slides > li.activity-list > a div.flex-viewport > ul.slides > li.activity-list > a
div.flex-viewport > ul.slides > li.activity-list > a div.flex-viewport > ul.slides > li.activity-list > a
div.activity > ul.flex-direction-nav > li.flex-nav-prev > a.flex-prev div.activity > ul.flex-direction-nav > li.flex-nav-prev > a.flex-prev
div.activity > ul.flex-direction-nav > li.flex-nav-next > a.flex-next div.activity > ul.flex-direction-nav > li.flex-nav-next > a.flex-next
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.text > div.text-list > div.price > a div.text > div.text-list > div.price > a
div.customer-scroll > ul.flex-direction-nav > li.flex-nav-prev > a.flex-prev div.customer-scroll > ul.flex-direction-nav > li.flex-nav-prev > a.flex-prev
div.customer-scroll > ul.flex-direction-nav > li.flex-nav-next > a.flex-next div.customer-scroll > ul.flex-direction-nav > li.flex-nav-next > a.flex-next

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 have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
微信客服 客服QQ 手机APP 小程序 客服电话 公众号 body > div.homepage > div.service-bar > ul.service-list

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
客服QQ div.service-bar > ul.service-list > a > li.service-qq

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.

○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>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●Buttons have an accessible name
●Input buttons have discernible text.
●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.
●`<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.
●No element has a `[tabindex]` value greater than 0
●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
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
●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.
○`[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
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements use only permitted 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
○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
○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 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.
○`<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.
77

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.menu-logo-content > div > a > img.hidden-lg div.menu-logo-content > div > a > img.hidden-lg
www.22.cn/content/images/zsl.png120 x 70 (1.71)120 x 80 (1.50)

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?c37800fabdf21cf4f786cb0d5f794f12 line 1, col 274
●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 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
83

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
div.header > div#div_footer > div.load-right > a.load-close div.header > div#div_footer > div.load-right > a.load-close
.com.com价格：81 元注册首选，全球注册量第一 div.search-input-box > ul > li > a
.cn.cn价格：25 元中国国家域名 div.search-input-box > ul > li > a
.net.net价格：92 元网络机构专属 div.search-input-box > ul > li > a
.com.cn.com.cn价格：25 元 div.search-input-box > ul > li > a
.cc.cc价格：25 元我的CC，由我定义 div.search-input-box > ul > li > a
.club.club价格：15 元俱乐部、论坛首选 div.search-input-box > ul > li > a
.me.me价格：53 元 div.search-input-box > ul > li > a
.shop.shop价格：49 元购物/商店、互联网电商域名 div.search-input-box > ul > li > a
.中国.中国价格：35 元更具影响力的中文域名 div.search-input-box > ul > li > a
.vip.vip价格：40 元代表了尊贵、特权、贵宾，彰显价值，展现魅力 div.search-input-box > ul > li > a
.ltd.ltd价格：30 元为有限公司而生，公司专属 div.search-input-box > ul > li > a
.link.link价格：60 元“链接”，缩短与世界的距离 div.search-input-box > ul > li > a
.fit.fit价格：15 元 div.search-input-box > ul > li > a
.work.work价格：15 元 div.search-input-box > ul > li > a
.mobi.mobi价格：285 元移动手机 专属域名 div.search-input-box > ul > li > a
.store.store价格：15 元首个电商专属域名，知名企业已启用 div.search-input-box > ul > li > a
.site.site价格：15 元 div.search-input-box > ul > li > a
.info.info价格：200 元信息时代的明确标识 div.search-input-box > ul > li > a
.group.group价格：165 元更适用于集团，团体 div.search-input-box > ul > li > a
.biz.biz价格：49 元老牌国际域名 div.search-input-box > ul > li > a
.asia.asia价格：150 元通往亚洲的域名入口 div.search-input-box > ul > li > a
.tv.tv价格：200 元国别域名，影音娱乐媒体专用 div.search-input-box > ul > li > a
.网络.网络价格：80 元中文网络域名 div.search-input-box > ul > li > a
.公司.公司价格：80 元更具商业影响力的中文域名 div.search-input-box > ul > li > a
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
竞价 tbody > tr > td > a.hui-button
关注我们 ul > li > div.about-list-title > a
爱名公众号 div.about-list-text > div.wei > div.wei-guanzhu > a.botma
爱名小程序 div.about-list-text > div.wei > div.wei-guanzhu > a.botma
返回电脑版 div.footer > div.main-container > div.computer-back > a.computer
手机版 body > div.homepage > div.footer-qiehuan > a.small-iphone
PC版 body > div.homepage > div.footer-qiehuan > a.computer

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.menu-logo-content > div.logo > a > img.hidden-xs div.menu-logo-content > div.logo > a > img.hidden-xs
div.menu-logo-content > div > a > img.hidden-xs div.menu-logo-content > div > a > img.hidden-xs
li.weixing > div.weixin214 > div.wxicon > img li.weixing > div.weixin214 > div.wxicon > img
li.weixing > div.weixin214 > div.wxicon > img li.weixing > div.weixin214 > div.wxicon > img
ul > li > a > img ul > li > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
ul.slides > li.activity-list > a > img ul.slides > li.activity-list > a > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
div.col-md-4 > div.about-domain > div.about-domain-img > img div.col-md-4 > div.about-domain > div.about-domain-img > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
li > div.promise-thumb > div.thumb-container > img li > div.promise-thumb > div.thumb-container > img
div.about-list-text > div.wei > div.wei-guanzhu > img.code-block div.about-list-text > div.wei > div.wei-guanzhu > img.code-block
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
a.weixing > div.weixin214 > div.wxicon > img a.weixing > div.weixin214 > div.wxicon > img
div.footer-text-sm > p.text > a > img div.footer-text-sm > p.text > a > img
div.main-container > div > a > img div.main-container > div > a > img
div.service-bar > ul.service-list > li.service-kefu > img.icon-img div.service-bar > ul.service-list > li.service-kefu > img.icon-img
ul.service-list > a > li.service-qq > img.icon-img ul.service-list > a > li.service-qq > img.icon-img
div.service-bar > ul.service-list > li.service-app > img.icon-img div.service-bar > ul.service-list > li.service-app > img.icon-img
div.service-bar > ul.service-list > li.service-wechat > img.icon-img div.service-bar > ul.service-list > li.service-wechat > img.icon-img
div.service-bar > ul.service-list > li.service-phone > img.icon-img div.service-bar > ul.service-list > li.service-phone > img.icon-img
div.service-bar > ul.service-list > li.service-wechat > img.icon-img div.service-bar > ul.service-list > li.service-wechat > img.icon-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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