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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.

38

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 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:45.851 source:map[column:29836 line:0 type:source-location url:https://lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/912c79b.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:358.94 label:Time to first byte subpart:timeToFirstByte] map[duration:4645.402 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-DIV
nodeLabel: 这是苍何的第 468 篇原创! 大家好,我是热爱编程的苍何。 去年底的时候,我写过 2 篇 AI 漫剧的文章,感兴趣的还挺多的。 也认识了非常多做 AI 漫剧…
path: 1,HTML,1,BODY,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,MAIN,0,DIV,2,DIV,1,DIV,0,DIV,1,DIV,1,DIV,0,DIV,3,LI,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,A,0,DIV
selector: div.main-box > div.abstract > a.jj-link > div
snippet: <div data-v-9d0f1e60="" data-v-65b50b51="">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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.

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
同事偷偷给我介绍私活,说1万报酬全给我,结果甲方私下告诉我说,同事在当中白拿了2万,我觉得被耍了,媳妇却让我要知足,说我一点不亏 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/17ec1081690a45bc9a763bba6e93f78e~tpl...955.4 KiB954.7 KiB
国企三年我现在怎么样了 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/dfc5f2a52a0b4547a5aaebb6bc8641b4~tpl...118.6 KiB118.1 KiB
全网最简单的 OpenClaw 部署教程,5 分钟拥有你的 AI 员工 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/a7c10708aeb1406484368d4588d4935d~tpl...86.6 KiB84.6 KiB
程序员效率神器:一文掌握 tmux(服务器开发必备工具) div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/b0810a652b3d4f21ad501401c0537501~tpl...58.1 KiB57.0 KiB
面试官问我:“AI 写代码比你快 100 倍,你的价值在哪?” div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/88d94546f03f4580b76d7aa6ea30a56d~tpl...52.9 KiB52.1 KiB
豆包也开始抢程序员饭碗了,一个月只要9块9。。 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/c8e7c4e4a6704029af9f5a45b7ce558e~tpl...51.1 KiB51.0 KiB
为什么我不建议普通前端盲目卷全栈? div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/981e2c193a6a4ae18523daba3b4772b2~tpl...47.9 KiB47.4 KiB
全面封禁 Cursor!又一家大厂出手了 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/2e62675c99154fb387c8250ff054e7a8~tpl...37.2 KiB36.2 KiB
瑞幸 UI 上 pub.dev 了 —— 22 个 Flutter 组件,与微信小程序版双端对齐 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/8fdcf3fb8fff4042971a4a9d0f5599d0~tpl...34.7 KiB32.8 KiB
我用AI做了一个48秒的真人精品漫剧,不难也不贵 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/0117cd6cce234b9fa94047f589a87b6d~tpl...29.9 KiB29.4 KiB
Rspack 2.0 正式发布! div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/a5420e4f84c64ed48dec4e938c7ec431~tpl...27.2 KiB26.7 KiB
别再裸用 Claude Code 了!32 个亲测Skills + 8 个 MCP,开发效率直接拉满! div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/1a93679925034cbaac4f0c5d193a3f6e~tpl...23.5 KiB22.5 KiB
工作十年了,慢慢学习敬畏死亡 div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/ccbab2a9aa8d4b1382bdd1853524c185~tpl...22.4 KiB20.1 KiB
阿里出手了!终于不怕OpenClaw烧token啦,直接算力自由~ div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/44eac31e632540f7aff7def9349db5e7~tpl...19.6 KiB19.0 KiB
拒绝 AI 焦虑!一个普通程序员的真实 AI 工作流(附成本账单) div.content-box > div.main-row > div.main-box > img.lazy
/tos-cn-i-73owjymdk6/4b0f16a46a0a40f594ab84fa4294bb3e~tpl...6.9 KiB5.6 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.1 s
URLTime Spent
juejin.cn/1.1 s
juejin.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

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused 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.

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation3.8 s
Other1.2 s
Script Parsing & Compilation538 ms
Style & Layout473 ms
Rendering200 ms
Garbage Collection110 ms
Parse HTML & CSS44 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable
Pages with WebSocket cannot enter back/forward cache.Pending browser support

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

Layout shift culprits
Document request latency
Optimize DOM size
Font display
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
Avoid long main-thread tasks 20 long tasks found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 270 ms
Server Backend Latencies 1,000 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 350 ms
Avoid large layout shifts 1 layout shift found
INP breakdown
LCP request discovery
User Timing marks and measures
Avoid non-composited animations
68

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
首页 ul.nav-list > li.main-nav-list > div.phone-show-menu > span
登录 ul.right-side-nav > li.nav-item > div.login-button-wrap > button.login-button
综合 div.nav-list > a.nav-item > div.category-popover-box > span
最新 nav.list-nav > ul.nav-list > li.nav-item > a
程序员鱼皮 li.item > div.user-message > a.jj-link > div.popover-box
146k div.main-row > ul.action-list > li.item > span
529 div.main-row > ul.action-list > li.item > span
AI袋鼠帝 li.item > div.user-message > a.jj-link > div.popover-box
74k div.main-row > ul.action-list > li.item > span
275 div.main-row > ul.action-list > li.item > span
提前退休的java猿 li.item > div.user-message > a.jj-link > div.popover-box
13k div.main-row > ul.action-list > li.item > span
49 div.main-row > ul.action-list > li.item > span
苍何 li.item > div.user-message > a.jj-link > div.popover-box
4.9k div.main-row > ul.action-list > li.item > span
55 div.main-row > ul.action-list > li.item > span
小兵张健 li.item > div.user-message > a.jj-link > div.popover-box
44k div.main-row > ul.action-list > li.item > span
326 div.main-row > ul.action-list > li.item > span
大家好,我是程序员鱼皮。 最近 OpenClaw(由 ClawdBot 改名)是真的火,它是一个能操作电脑干活的 AI 数字员工。能帮你读写文件、编写程序、执… div.main-box > div.abstract > a.jj-link > div
程序员鱼皮 li.item > div.user-message > a.jj-link > div.popover-box
22k div.main-row > ul.action-list > li.item > span
154 div.main-row > ul.action-list > li.item > span
AI袋鼠帝 li.item > div.user-message > a.jj-link > div.popover-box
43k div.main-row > ul.action-list > li.item > span
167 div.main-row > ul.action-list > li.item > span
智见君 li.item > div.user-message > a.jj-link > div.popover-box
16k div.main-row > ul.action-list > li.item > span
53 div.main-row > ul.action-list > li.item > span
WebInfra li.item > div.user-message > a.jj-link > div.popover-box
299 div.main-row > ul.action-list > li.item > span
14 div.main-row > ul.action-list > li.item > span
今天不谈宏大叙事,也不贩卖焦虑。只晒真实的账单和工作流,看看 AI 到底是为了提效,还是让我们更累? div.main-box > div.abstract > a.jj-link > div
此方的手帐 li.item > div.user-message > a.jj-link > div.popover-box
6.4k div.main-row > ul.action-list > li.item > span
39 div.main-row > ul.action-list > li.item > span
最近例行逛职场社区的时候,看到一个很有意思的讨论帖。 意思大概是这样的: 同事私下偷偷给帖主介绍了单私活,说报酬有一万全部给他,结果后来不知什么原因或者机缘巧… div.main-box > div.abstract > a.jj-link > div
CodeSheep li.item > div.user-message > a.jj-link > div.popover-box
6.3k div.main-row > ul.action-list > li.item > span
18 div.main-row > ul.action-list > li.item > span
蝎子莱莱爱打怪 li.item > div.user-message > a.jj-link > div.popover-box
42k div.main-row > ul.action-list > li.item > span
492 div.main-row > ul.action-list > li.item > span
在日常开发或服务器运维中,你可能遇到过这些问题: SSH 登录服务器跑任务,一断网程序就停止 一个终端需要同时运行多个任务 想一边看日志一边调试程序 长时间运… div.main-box > div.abstract > a.jj-link > div
舒一笑不秃头 li.item > div.user-message > a.jj-link > div.popover-box
1.0k div.main-row > ul.action-list > li.item > span
前端之虎陈随易 li.item > div.user-message > a.jj-link > div.popover-box
2.6k div.main-row > ul.action-list > li.item > span
19 div.main-row > ul.action-list > li.item > span
qwfy li.item > div.user-message > a.jj-link > div.popover-box
2.3k div.main-row > ul.action-list > li.item > span
10 div.main-row > ul.action-list > li.item > span
周末,一个半年前从我们组离职去当 独立开发者 的小伙子,突然约我出来喝了顿大酒。 半年前他提离职的时候,眼里是有光的。当时他手里拿着一个用 Next.js +… div.main-box > div.abstract > a.jj-link > div
ErpanOmer li.item > div.user-message > a.jj-link > div.popover-box
7.2k div.main-row > ul.action-list > li.item > span
125 div.main-row > ul.action-list > li.item > span
小兵张健 li.item > div.user-message > a.jj-link > div.popover-box
9.8k div.main-row > ul.action-list > li.item > span
40 div.main-row > ul.action-list > li.item > span
前言 最近花了点时间用AI做了一个48秒的真人精品漫剧,只能说在AI时代各行各业都被冲击的体无完肤... 制作方法 工具和平台 图片生成用到的模型是libli… div.main-box > div.abstract > a.jj-link > div
华洛 li.item > div.user-message > a.jj-link > div.popover-box
1.7k div.main-row > ul.action-list > li.item > span
23 div.main-row > ul.action-list > li.item > span
洋洋洒洒内容比较多,但其实核心思想比较简单,可能就是发点牢骚,分享经历,感叹时艰,美好祝愿。希望诸君皆好。 div.main-box > div.abstract > a.jj-link > div
小流苏生 li.item > div.user-message > a.jj-link > div.popover-box
649 div.main-row > ul.action-list > li.item > span
面试官是一个看着很资深的技术总监。他喝了口水,突然抛出了一个非常尖锐的问题: “你平时用 AI 写代码吗?现在 AI 敲代码的速度比你快 100 倍,错误率还… div.main-box > div.abstract > a.jj-link > div
雨夜寻晴天 li.item > div.user-message > a.jj-link > div.popover-box
9.3k div.main-row > ul.action-list > li.item > span
98 div.main-row > ul.action-list > li.item > span
APP内打开 div#juejin > div.container > div.view-container > div.open-button

These are opportunities to improve the legibility of your content.

Names and labels

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
ul.search-add-ul > li.nav-item > form.search-form > input.search-input ul.search-add-ul > li.nav-item > form.search-form > input.search-input

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
首页 登录 header.main-header > div.container > nav.main-nav > ul.nav-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
全面封禁 Cursor!又一家大厂出手了 最近,有网友爆料称:快手的研发线发布通知,收紧了对第三方编程软件的使用权限。 不少同学发现,只要在自己办公电脑上点开… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
豆包也开始抢程序员饭碗了,一个月只要9块9。。 Doubao-Seed-Code编程能力确实没有达到全球顶尖水平。 但它是国内首个支持视觉理解的编程模型,也是… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
国企三年我现在怎么样了 23年年初来到现在公司,已经三年了。没错公司的薪资稳定得离谱。从来没涨过,你说我能力不行表现不好嘛,我也拿过优秀员工。现在明显感觉到3… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
耗时 8 天,我用 Claude Code 开发了 AI 漫剧 APP,并开源了。 这是苍何的第 468 篇原创! 大家好,我是热爱编程的苍何。 去年底的时候… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
目前最省最强用 Claude ops 4.5 + Gemini 3 Pro 的方案,30 块钱一年 核心思路: 利用机制:Google AI Premium … div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
全网最简单的 OpenClaw 部署教程,5 分钟拥有你的 AI 员工 大家好,我是程序员鱼皮。 最近 OpenClaw(由 ClawdBot 改名)是真的火… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
阿里出手了!终于不怕OpenClaw烧token啦,直接算力自由~ 阿里云推出全新CodingPlan服务,整合Qwen-3.5、Kimi-K2.5和GLM-… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
重磅福利:Cursor 向学生免费开放一年! 最近,Cursor 官方宣布了一个好消息。Cursor 现在对学生免费开放一年。只要你是学生,就可以免费使用 C… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
Rspack 2.0 正式发布! 我们很高兴地宣布 Rspack 2.0 已正式发布!Rspack 2.0 在保持与 webpack 生态兼容的同时,引入了更… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
拒绝 AI 焦虑!一个普通程序员的真实 AI 工作流(附成本账单) 今天不谈宏大叙事,也不贩卖焦虑。只晒真实的账单和工作流,看看 AI 到底是为了提效,还是让… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
同事偷偷给我介绍私活,说1万报酬全给我,结果甲方私下告诉我说,同事在当中白拿了2万,我觉得被耍了,媳妇却让我要知足,说我一点不亏 最近例行逛职场社区的时候,看… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
别再裸用 Claude Code 了!32 个亲测Skills + 8 个 MCP,开发效率直接拉满! 别再裸用 Claude Code 了!32 个亲测技能… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
程序员效率神器:一文掌握 tmux(服务器开发必备工具) 在日常开发或服务器运维中,你可能遇到过这些问题: SSH 登录服务器跑任务,一断网程序就停止 一个终… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
农村程序员聊五险一金 最近在网上发的农村生活视频,引起了不少朋友的兴趣,所以开个文章+视频系列,分享农村的一些方方面面。 这篇文章,分享我对于五险一金这个话题… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
瑞幸 UI 上 pub.dev 了 —— 22 个 Flutter 组件,与微信小程序版双端对齐 瑞幸 UI 上 pub.dev 了 —— 22 个 Flut… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
为什么我不建议普通前端盲目卷全栈? 周末,一个半年前从我们组离职去当 独立开发者 的小伙子,突然约我出来喝了顿大酒。 半年前他提离职的时候,眼里是有光的。当时… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
为什么有的人偏爱 Mac 为什么有的人偏爱 Mac 我之前大概用了十几年的 Windows,最近入职了一家新公司,公司强制给我发了 M4 版顶配的 Mac,一… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
我用AI做了一个48秒的真人精品漫剧,不难也不贵 前言 最近花了点时间用AI做了一个48秒的真人精品漫剧,只能说在AI时代各行各业都被冲击的体无完肤... 制… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
工作十年了,慢慢学习敬畏死亡 洋洋洒洒内容比较多,但其实核心思想比较简单,可能就是发点牢骚,分享经历,感叹时艰,美好祝愿。希望诸君皆好。 小流苏生 649 8 div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item
面试官问我:“AI 写代码比你快 100 倍,你的价值在哪?” 面试官是一个看着很资深的技术总监。他喝了口水,突然抛出了一个非常尖锐的问题: “你平时用 AI… div.entry-list-container > div.entry-list-wrap > div.entry-list > li.item

These are opportunities to improve the experience of reading tabular or list data using 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>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
Buttons have an accessible name
Image elements have `[alt]` attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links have a discernible name
Touch targets have sufficient size and spacing.
Document has a main landmark.
Deprecated ARIA roles were not used
`[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-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
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
`<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 an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
Links are distinguishable without relying on color.
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
No element has a `[tabindex]` value greater than 0
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
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.
77

Best Practices

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.
Unload event listeners are deprecated and will be removed.

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
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg56iL5bqP5ZGY6bG855qu:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg56iL5bqP5ZGY6bG855qu:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg56iL5bqP5ZGY6bG855qu:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg56iL5bqP5ZGY6bG855qu:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5bCP5rWB6IuP55Sf:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5bCP5rWB6IuP55Sf:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5o-Q5YmN6YCA5LyR55qEamF2YeeMvw==:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5o-Q5YmN6YCA5LyR55qEamF2YeeMvw==:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5q2k5pa555qE5omL5biQ:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5q2k5pa555qE5omL5biQ:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5Y2O5rSb:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg5Y2O5rSb:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg6IiS5LiA56yR5LiN56eD5aS0:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg6IiS5LiA56yR5LiN56eD5aS0:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg6J2O5a2Q6I6x6I6x54ix5omT5oCq:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg6J2O5a2Q6I6x6I6x54ix5omT5oCq:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg6Zuo5aSc5a-75pm05aSp:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAg6Zuo5aSc5a-75pm05aSp:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgcXdmeQ==:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgcXdmeQ==:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgQ29kZVNoZWVw:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgQ29kZVNoZWVw:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgQUnooovpvKDluJ0=:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgQUnooovpvKDluJ0=:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgQUnooovpvKDluJ0=:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgQUnooovpvKDluJ0=:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgRXJwYW5PbWVy:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgRXJwYW5PbWVy:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgV2ViSW5mcmE=:q75.awebp" parse error
parseImageXUrl "tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgV2ViSW5mcmE=:q75.awebp" parse error

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/f4482c2.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/f4482c2.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/6862e46.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/6862e46.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/ccb60ed.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/ccb60ed.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/ca3f653.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/ca3f653.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/c9f5f2a.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/c9f5f2a.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/c9d3ef7.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/c9d3ef7.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/b5fc4ad.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/b5fc4ad.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/b4d4b4f.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/b4d4b4f.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/ac6a3a5.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/ac6a3a5.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/991c9ef.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/991c9ef.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/974808f.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/974808f.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/96ba225.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/96ba225.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/9615bc3.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/9615bc3.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/912c79b.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/912c79b.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/84f8aee.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/84f8aee.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/839fa0d.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/839fa0d.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/834b5b5.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/834b5b5.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/7d21529.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/7d21529.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/7cdae3a.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/7cdae3a.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/65a5ce9.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/65a5ce9.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/5f049d8.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/5f049d8.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/482e172.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/482e172.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/45912f8.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/45912f8.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/0fe558a.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/0fe558a.js.map
lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/0871e4c.jslf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/0871e4c.js.map
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
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Redirects HTTP traffic to HTTPS
92

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
稀土掘金 div.view-container > header.main-header > div.container > a.logo
更多 li.main-nav-list > ul.phone-hide > li.nav-item > a
下载APP ul.link-list > li.item > span.download-popover > a.link
微信公众号 ul.link-list > li.item > span.wechat-popover > a.link

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

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
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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