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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

57

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
www1.pconline.com.cn/sale/2026/images/0306/banner.png86400.0 s67.1 KiB
www1.pconline.com.cn/cms/gz20240221/pc/home/images/home-top-pop.jpg86400.0 s66.1 KiB
www1.pconline.com.cn/cms/gz20240115/wap/home/images/popup-bg.png86400.0 s43.8 KiB
www1.pconline.com.cn/cms/gz20240115/wap/home/images/popup-logo.png86400.0 s43.1 KiB
www1.pconline.com.cn/cms/2025/wap/1128/pconline-logo.webp900.0 s11.1 KiB
www1.pconline.com.cn/2023/cms/home/images/qr-online-wx.png86400.0 s23.2 KiB
www1.pconline.com.cn/2018/wap/art/images/icons.png86400.0 s21.6 KiB
www1.pconline.com.cn/2023/home/wap/images/rankbg.png86400.0 s16.5 KiB
www1.pconline.com.cn/2023/cms/home/images/placeholder.png86400.0 s16.2 KiB
www1.pconline.com.cn/2022/common/swiper/swiper-bundle.min.css900.0 s4.7 KiB
www1.pconline.com.cn/cms/home/2025/images/0927/ico-video-play.webp900.0 s4.6 KiB
js.3conline.com/pconlinenew/data/wap/2024/cms/home/css/index.min.css?t=202509273600.0 s4.8 KiB
/adpuba/online_test_show?id=pc.sy.test15.&media=js&channe...0.0 ms3.4 KiB
js.3conline.com/pconlinenew/data/common/wakeup/floatingLlayerPop.js3600.0 s4.2 KiB
www1.pcauto.com.cn/zt/gz20220126/wap/index/img/half-close-circle.png3600.0 s4.2 KiB
www.pconline.com.cn/_hux_/index.js900.0 s3.7 KiB
www.pconline.com.cn/_hux_/online/default/index.js900.0 s3.7 KiB
www1.pconline.com.cn/cms/home/wap/2025/images/0927/lable-yuanchuang.webp900.0 s3.5 KiB
js.3conline.com/pconlinenew/data/common/wakeup/floatEnum.js3600.0 s3.4 KiB
js.3conline.com/pconlinenew/data/common/wakeup/utils.js3600.0 s3.3 KiB
www1.pconline.com.cn/2023/home/wap/images/navIcon1.png86400.0 s6.3 KiB
www1.pconline.com.cn/2023/home/wap/images/navIcon4.png86400.0 s6.0 KiB
www1.pconline.com.cn/2023/home/wap/images/navIcon3.png86400.0 s5.5 KiB
www1.pconline.com.cn/2023/home/wap/images/navIcon2.png86400.0 s5.4 KiB
www1.pconline.com.cn/2023/home/wap/images/navIcon5.png86400.0 s5.2 KiB
www1.pconline.com.cn/2023/home/wap/images/bdTit.png86400.0 s5.0 KiB
www1.pconline.com.cn/ai/2025/wap/images/logo/1128/ico-logo-wap-2025.webp900.0 s2.0 KiB
www1.pconline.com.cn/2023/home/wap/images/top2.png86400.0 s4.3 KiB
www1.pconline.com.cn/2023/home/wap/images/top3.png86400.0 s4.2 KiB
www1.pconline.com.cn/cms/home/20241220/images/nav_gxcpr.png86400.0 s4.1 KiB
www1.pconline.com.cn/2023/home/wap/images/top1.png86400.0 s4.1 KiB
www1.pconline.com.cn/2023/home/wap/images/kuaixun.png86400.0 s4.1 KiB
js.3conline.com/pconlinenew/data/wap/2023/cms/js/headerTop.js?kd3600.0 s1.9 KiB
www1.pconline.com.cn/cms/gz20240115/wap/home/images/header-top-download.png86400.0 s3.8 KiB
js.3conline.com/pconlinenew/data/wap/2024/cms/home/js/index.js3600.0 s1.8 KiB
/pconlinenew/data/wap/2025/cms/js/wap_pageStepNavigation....3600.0 s1.6 KiB
/adpuba/online_default_show?id=pc.wap.test15.&media=js&ch...0.0 ms1.2 KiB
js.3conline.com/wap/common/wxApi-ForShare.min.js3600.0 s1.2 KiB
www1.pconline.com.cn/2024/wap/home/subnav/images/home-subname-ai.png86400.0 s2.2 KiB
www1.pconline.com.cn/2023/home/wap/images/userIcon.png86400.0 s1.9 KiB
/s.gif?url=https%3A%2F%2Fg.pconline.com.cn%2F&token=8568a...0.0 ms698 B
www1.pconline.com.cn/2018/wap/common/footer/images/PCauto.png86400.0 s1.5 KiB
www1.pconline.com.cn/2024/wap/home/subnav/images/home-subname-zhizao.png86400.0 s1.5 KiB
www1.pconline.com.cn/2023/home/wap/images/searchIcon.png86400.0 s1005 B
www1.pconline.com.cn/cms/gz20240115/wap/home/images/app-close-btn.png86400.0 s821 B
www1.pconline.com.cn/2023/home/wap/images/navsIcon.png86400.0 s703 B
www1.pconline.com.cn/2023/home/wap/images/rightIcon.png86400.0 s648 B
www1.pconline.com.cn/2023/home/wap/images/rightIcon2.png86400.0 s627 B
/adpuba/show?id=pc.wap.sy.test15.&media=js&channel=inline...0.0 ms156 B
www1.pconline.com.cn/images/blank.gif86400.0 s360 B
/adpuba/show?id=pc.wap.sy.dhxfwzl.&media=js&channel=inlin...0.0 ms67 B
/adpuba/show?id=pc.wap.sy.dbtl.&media=js&channel=inline&t...0.0 ms66 B
/adpuba/show?id=pc.wap.sy.dbwz1.&media=js&channel=inline&...0.0 ms66 B
/adpuba/show?id=pc.wap.sy.ycsdt.&media=js&channel=inline&...0.0 ms66 B
/adpuba/show?id=pc.wap.sy.pdxxl1.&media=js&channel=inline...0.0 ms66 B
/adpuba/show?id=pc.wap.sy.pdxxl2.&media=js&channel=inline...0.0 ms66 B
/adpuba/show?id=pc.wap.sy.pdxxl3.&media=js&channel=inline...0.0 ms66 B

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
影像红黑榜:口袋里的专业相机,pocket4重磅登场! div.swiper-wrapper > div.swiper-slide > a.pic > img
/pconline/digital/dc/2023/news/2604/20264/20/177668294803...375.8 KiB342.8 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260421/49828437.jpg?x-oss...255.4 KiB242.7 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260420/49792206.jpg?x-oss...223.1 KiB210.4 KiB
Alienware外星人游戏互动嘉年华:一场关于热爱的集体仪式 div.swiper-wrapper > div.swiper-slide > a.pic > img
/pconline/notebook/nbnews/nbnews/2604/20264/21/1776777583...201.7 KiB168.6 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260421/49828644.jpg?x-oss...174.8 KiB162.1 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260420/49792306.jpg?x-oss...170.0 KiB157.2 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260417/49692465.jpg?x-oss...165.0 KiB152.3 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260421/49829099.jpg?x-oss...118.7 KiB106.0 KiB
机器人马拉松一战成名:荣耀的跨界之战为什么能成功? div.swiper-wrapper > div.swiper-slide > a.pic > img
img0.pconline.com.cn/pconline/ai/2604/20264/21/17767656412737210.jpg101.6 KiB68.6 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260417/49692198.jpg?x-oss...76.2 KiB63.4 KiB
「鲜Phone画报」一加 Ace 6 至尊版|硬核气场,玩家信仰 div.swiper-wrapper > div.swiper-slide > a.pic > img
/pconline/picture/000145456/2604/20264/21/177675249277420...73.1 KiB43.1 KiB
div#home-bottom-half-dialog > div.bottom-half-dialog-content > div.bottom-half-openapp > img div#home-bottom-half-dialog > div.bottom-half-dialog-content > div.bottom-half-openapp > img
www1.pconline.com.cn/cms/gz20240115/wap/home/images/popup-logo.png42.7 KiB40.6 KiB
这下是真把哈苏装进口袋里了!OPPO Find X9 Ultra体验 div.swiper-wrapper > div.swiper-slide > a.pic > img
/pconline/test/2023/focus/big/2604/20264/21/1776785648429...68.1 KiB35.1 KiB
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
img0.pconline.com.cn/pconline/headphoto/2306/20236/1/16855857141292850.jpg27.5 KiB27.4 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20260410/49423683_sn8.png31.9 KiB27.0 KiB
手机+小平板太阔了,华为Pura X Max真机上手体验 div.swiper-wrapper > div.swiper-slide > a.pic > img
/pconline/test/2023/focus/big/2604/20264/22/1776830346818...58.5 KiB25.5 KiB
灭霸再加码!vivo Y600 Pro续航耐用全都要 div.swiper-wrapper > div.swiper-slide > a.pic > img
img0.pconline.com.cn/pconline/mobile/review/2604/20264/22/17768295836625150.jpg58.2 KiB25.2 KiB
REDMI K Pad 2 拆解:拒绝花哨,死磕实用性! div.swiper-wrapper > div.swiper-slide > a.pic > img
/pconline/test/2023/focus/big/2604/20264/22/1776857664343...53.9 KiB20.8 KiB
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
img0.pconline.com.cn/pconline/headphoto/2305/20235/17/16843133163445140.jpg19.2 KiB19.2 KiB
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
/pconline/images/pconline_cms/20260420/49792797.jpg?x-oss...31.6 KiB18.9 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20250417/25412527_sn8.jpg16.1 KiB11.1 KiB
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
img0.pconline.com.cn/pconline/headphoto/2305/20235/17/16843128880696270.jpg9.3 KiB9.1 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20250723/30597156_sn8.jpg14.0 KiB9.0 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20260323/48588598_sn8.jpg14.0 KiB9.0 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20260228/47464116_sn8.jpg11.0 KiB6.0 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20250306/24815118_sn8.jpg10.9 KiB6.0 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20260316/48203073_sn8.jpg10.7 KiB5.7 KiB
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
img4.pconline.com.cn/pconline/images/product/20250915/34426142_sn8.jpg10.4 KiB5.4 KiB
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
img0.pconline.com.cn/pconline/headphoto/2309/20239/28/16958675535358130.jpg5.4 KiB5.2 KiB
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
www1.pconline.com.cn/2023/home/wap/images/navIcon1.png5.9 KiB5.2 KiB
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
www1.pconline.com.cn/2023/home/wap/images/navIcon4.png5.7 KiB4.9 KiB
div.g-footer > div.pcgroups > a.pcauto > ::before div.g-footer > div.pcgroups > a.pcauto > ::before
www1.pconline.com.cn/2018/wap/art/images/icons.png21.3 KiB4.6 KiB
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
www1.pconline.com.cn/2023/home/wap/images/navIcon3.png5.2 KiB4.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:1569.189 label:Time to first byte subpart:timeToFirstByte] map[duration:9.999 label:Resource load delay subpart:resourceLoadDelay] map[duration:2012.501 label:Resource load duration subpart:resourceLoadDuration] map[duration:9.485 label:Element render delay subpart:elementRenderDelay]]
lhId: page-16-IMG
nodeLabel: 灭霸再加码!vivo Y600 Pro续航耐用全都要
path: 1,HTML,1,BODY,8,DIV,8,DIV,0,DIV,1,DIV,0,A,0,IMG
selector: div.swiper-wrapper > div.swiper-slide > a.pic > img
snippet: <img src="//img0.pconline.com.cn/pconline/mobile/review/2604/20264/22/17768295836625…" alt="灭霸再加码!vivo Y600 Pro续航耐用全都要">

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-16-IMG
nodeLabel: 灭霸再加码!vivo Y600 Pro续航耐用全都要
path: 1,HTML,1,BODY,8,DIV,8,DIV,0,DIV,1,DIV,0,A,0,IMG
selector: div.swiper-wrapper > div.swiper-slide > a.pic > img
snippet: <img src="//img0.pconline.com.cn/pconline/mobile/review/2604/20264/22/17768295836625…" alt="灭霸再加码!vivo Y600 Pro续航耐用全都要">

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.

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 3.8 s

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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: 190 ms 52.6 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 a sub frame.Actionable

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

●Max Potential First Input Delay 70 ms
●Layout shift culprits
●Document request latency
●Optimize DOM size
●Font display
●Forced reflow
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●JavaScript execution time 0.1 s
●Minimizes main-thread work 1.7 s
●Avoid long main-thread tasks 3 long tasks found
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 240 ms
●Server Backend Latencies 390 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 240 ms
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
○Avoid large layout shifts
45

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
div.g-header-top > div.search > form#Jsearch > input div.g-header-top > div.search > form#Jsearch > input
活动 div.g-doc > div.tits-news > a.tit > span.tag
更多 div.yw-list > div.area-title > div.subCha > a
新智元 div.list > a.pt > em.info > span.name
新智元 div.list > a.pt > em.info > span.name
手机 div#JsmMod > div.area-title > div.subCha > a
笔记本 div#JsmMod > div.area-title > div.subCha > a
影像 div#JsmMod > div.area-title > div.subCha > a
原创 a.art > div.txt > em.tags > span.tag
手机 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
手机 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
手机 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
笔记本 a.art > div.txt > em.tags > span.tag
评测 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
笔记本 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
笔记本 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
数码 a.art > div.txt > em.tags > span.tag
新品 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
数码 a.art > div.txt > em.tags > span.tag
新品 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
数码 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
CPU div#JyjMod > div.area-title > div.subCha > a
显卡 div#JyjMod > div.area-title > div.subCha > a
主板 div#JyjMod > div.area-title > div.subCha > a
更多 div#JyjMod > div.area-title > div.subCha > a
原创 a.art > div.txt > em.tags > span.tag
DIY外设 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
DIY外设 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
DIY外设 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
电视影音 div#JjiajuMod > div.area-title > div.subCha > a
智能家电 div#JjiajuMod > div.area-title > div.subCha > a
厨卫家电 div#JjiajuMod > div.area-title > div.subCha > a
原创 a.art > div.txt > em.tags > span.tag
家电 a.art > div.txt > em.tags > span.tag
评测 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
家电 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
家电 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
更多 div#JsyMod > div.area-title > div.subCha > a
原创 a.art > div.txt > em.tags > span.tag
办公设备 a.art > div.txt > em.tags > span.tag
百科 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
办公设备 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
办公设备 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
更多 div#JqyMod > div.area-title > div.subCha > a
企业站 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
企业站 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
原创 a.art > div.txt > em.tags > span.tag
企业站 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
智行驾道 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
智行驾道 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
智行驾道 a.art > div.txt > em.tags > span.tag
资讯 a.art > div.txt > em.tags > span.tag
打开 div#home-bottom-half-dialog > div.bottom-half-dialog-content > div.bottom-half-openapp > div#half-dialog-open-app

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.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div#JyjMod > div.area-bd > a.art > img.img div#JyjMod > div.area-bd > a.art > img.img
div#JyjMod > div.area-bd > a.art > img.img div#JyjMod > div.area-bd > a.art > img.img
div#JyjMod > div.area-bd > a.art > img.img div#JyjMod > div.area-bd > a.art > img.img
div#JjiajuMod > div.area-bd > a.art > img.img div#JjiajuMod > div.area-bd > a.art > img.img
div#JjiajuMod > div.area-bd > a.art > img.img div#JjiajuMod > div.area-bd > a.art > img.img
div#JjiajuMod > div.area-bd > a.art > img.img div#JjiajuMod > div.area-bd > a.art > img.img
div#JsyMod > div.area-bd > a.art > img.img div#JsyMod > div.area-bd > a.art > img.img
div#JsyMod > div.area-bd > a.art > img.img div#JsyMod > div.area-bd > a.art > img.img
div#JsyMod > div.area-bd > a.art > img.img div#JsyMod > div.area-bd > a.art > img.img
div#JqyMod > div.area-bd > a.art > img.img div#JqyMod > div.area-bd > a.art > img.img
div#JqyMod > div.area-bd > a.art > img.img div#JqyMod > div.area-bd > a.art > img.img
div#JqyMod > div.area-bd > a.art > img.img div#JqyMod > div.area-bd > a.art > img.img
div#JcxMod > div.area-bd > a.art > img.img div#JcxMod > div.area-bd > a.art > img.img
div#JcxMod > div.area-bd > a.art > img.img div#JcxMod > div.area-bd > a.art > img.img
div#JcxMod > div.area-bd > a.art > img.img div#JcxMod > div.area-bd > a.art > img.img

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.g-header-top > div.search > form#Jsearch > input div.g-header-top > div.search > form#Jsearch > input

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
body#Jbody > div.g-doc > div.g-header-top > a.logo body#Jbody > div.g-doc > div.g-header-top > a.logo
div.g-header-top > div.search > form#Jsearch > a.btn-search div.g-header-top > div.search > form#Jsearch > a.btn-search
div.g-doc > div.g-header-top > div.m-center > a#Jmy div.g-doc > div.g-header-top > div.m-center > a#Jmy
body#Jbody > div.g-doc > div.news > a.news-tit body#Jbody > div.g-doc > div.news > a.news-tit
div.area > div.area-bd > div.pt > a.img div.area > div.area-bd > div.pt > a.img
div.area > div.area-bd > div.pt > a.img div.area > div.area-bd > div.pt > a.img
div.area > div.area-bd > div.pt > a.img div.area > div.area-bd > div.pt > a.img
div.area > div.area-bd > div.pt > a.img div.area > div.area-bd > div.pt > a.img

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.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

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>`
●Document has a `<title>` element
●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.
●Document has a main landmark.
●Image elements do not have `[alt]` attributes that are redundant text.
●Identical links have the same purpose.
○`[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
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○Heading elements appear in a sequentially-descending order
○`<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
○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
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
92

Best Practices

Browser Compatibility

A character encoding declaration is required. It can be done with a `<meta>` tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn more about declaring the character encoding.

Why this matters

Performance issues directly impact user engagement and conversion rates.

General

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
g.pconline.com.cn/ line 1236, col 102
SyntaxError: Invalid or unexpected token
Uncaught ReferenceError: Swiper is not defined
●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
●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
77

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.g-header-top > div.search > form#Jsearch > a.btn-search div.g-header-top > div.search > form#Jsearch > a.btn-search
div.g-doc > div#Jdialog > div.video > a.closeBtn div.g-doc > div#Jdialog > div.video > a.closeBtn
div.chaNavs > div.block > div.b-hd > a.closeBtn div.chaNavs > div.block > div.b-hd > a.closeBtn
body#Jbody > div.g-doc > div.wxShowRelaNews > a.u-close body#Jbody > div.g-doc > div.wxShowRelaNews > a.u-close
查看更多 body#Jbody > div.g-doc > div.wxShowRelaNews > a.u-checkMore

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.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.swiper-wrapper > div.swiper-slide > a.item > img.icon div.swiper-wrapper > div.swiper-slide > a.item > img.icon
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.list > a.pt > img.pic div.area-bd > div.list > a.pt > img.pic
div.list > a.pt > em.info > img.img div.list > a.pt > em.info > img.img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div.area-bd > div.pt > a.img > img div.area-bd > div.pt > a.img > img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div#JsmMod > div.area-bd > a.art > img.img div#JsmMod > div.area-bd > a.art > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div.swiper-wrapper > div.swiper-slide > a.pro > img.img div.swiper-wrapper > div.swiper-slide > a.pro > img.img
div#JyjMod > div.area-bd > a.art > img.img div#JyjMod > div.area-bd > a.art > img.img
div#JyjMod > div.area-bd > a.art > img.img div#JyjMod > div.area-bd > a.art > img.img
div#JyjMod > div.area-bd > a.art > img.img div#JyjMod > div.area-bd > a.art > img.img
div#JjiajuMod > div.area-bd > a.art > img.img div#JjiajuMod > div.area-bd > a.art > img.img
div#JjiajuMod > div.area-bd > a.art > img.img div#JjiajuMod > div.area-bd > a.art > img.img
div#JjiajuMod > div.area-bd > a.art > img.img div#JjiajuMod > div.area-bd > a.art > img.img
div#JsyMod > div.area-bd > a.art > img.img div#JsyMod > div.area-bd > a.art > img.img
div#JsyMod > div.area-bd > a.art > img.img div#JsyMod > div.area-bd > a.art > img.img
div#JsyMod > div.area-bd > a.art > img.img div#JsyMod > div.area-bd > a.art > img.img
div#JqyMod > div.area-bd > a.art > img.img div#JqyMod > div.area-bd > a.art > img.img
div#JqyMod > div.area-bd > a.art > img.img div#JqyMod > div.area-bd > a.art > img.img
div#JqyMod > div.area-bd > a.art > img.img div#JqyMod > div.area-bd > a.art > img.img
div#JcxMod > div.area-bd > a.art > img.img div#JcxMod > div.area-bd > a.art > img.img
div#JcxMod > div.area-bd > a.art > img.img div#JcxMod > div.area-bd > a.art > img.img
div#JcxMod > div.area-bd > a.art > img.img div#JcxMod > div.area-bd > a.art > img.img

Canonical links suggest which URL to show in search results. Learn more about canonical links.

Why this matters

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

Source: MDN Permissions-Policy

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`

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