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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.

65

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
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.4173509397f8aa3a.2.woff2284176.0 s28.5 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.a84a90c19085b873.13.woff2489946.0 s34.7 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/600/cs.9d94f8221d93f686.1.woff2436040.0 s26.4 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.246e8ea5197d9c54.6.woff2527950.0 s31.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.ea3ec840cac76f1b.19.woff21229105.0 s37.6 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.aa06af0b430544a7.19.woff21231037.0 s37.5 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.8d4c2a096da7bd57.22.woff21131189.0 s36.3 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/600/cs.9b3f0ca0431a350d.4.woff2549817.0 s29.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.2d5e56f678ec44c0.18.woff22175964.0 s36.4 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.d6dcb01d8b56e74f.14.woff21650203.0 s35.3 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.c446acd779e5d2fe.17.woff21476112.0 s35.0 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.7ecaae6cd566bb8e.17.woff21660278.0 s35.2 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.1e3fc1ac25caa055.16.woff21892460.0 s35.0 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.a3a1b249407f2a59.12.woff21484673.0 s34.4 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.368bba26dceab3f2.11.woff21481416.0 s34.4 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.a501143ec516ef89.8.woff2717258.0 s33.3 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.40dce8f14d27ae90.7.woff2844383.0 s33.4 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.5ce26b64a1674f60.10.woff21047459.0 s33.5 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/300/cs.77537e483d531493.10.woff21110172.0 s33.5 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.7144a637759d3dd4.9.woff2681949.0 s33.0 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.11e6c18717a05b34.15.woff22441687.0 s34.7 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.9b238b24128e09d9.6.woff2695408.0 s32.1 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.501ea541ca5909ab.10.woff22299844.0 s33.6 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.4c99c20b51689926.9.woff22493835.0 s32.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/300/cs.6140b72ecd3e7837.6.woff22307077.0 s31.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.5538fe618f9d7a60.5.woff22266945.0 s30.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.1656bbfbf2b66170.3.woff2702762.0 s29.3 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.d5d63c06c4ee8ca8.3.woff2623312.0 s29.2 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.21c946adc24fa32b.4.woff21253372.0 s29.8 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.cacebd01a7296815.5.woff22361028.0 s30.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/300/cs.46cf77f2dc17a254.5.woff22575256.0 s30.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.507aeb5f5cc9de3a.2.woff2692584.0 s28.5 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.b3063c48c56d5c40.4.woff22271754.0 s29.6 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/300/cs.83d0a571a19e1fff.2.woff21193581.0 s28.5 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/300/cs.3259a3ddfc364c1c.4.woff22501284.0 s29.6 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.ee21b24834a16e24.1.woff2704415.0 s26.4 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.e37f98eab1bffea9.1.woff21578968.0 s26.3 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/300/cs.5e0577a5e9687015.1.woff22262274.0 s26.4 KiB
ssl-cdn.static.browser.mi-img.com/mistat-data/onetrack/onetrack.js10800.0 s3.4 KiB
cdn.cnbj1.fds.api.mi-img.com/common/jweixin-1.6.0.js86400.0 s5.6 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/cs.5dd139a4b434052f.0.woff21121245.0 s21.7 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/cs.4310947b63d7f2af.0.woff21325911.0 s21.8 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/300/cs.0c6ffc96a626ab7c.0.woff22216491.0 s21.7 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/lt.af0b32b4f18a2804.0.woff2525808.0 s12.7 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/700/lt.78ff5fee56275328.0.woff2587781.0 s12.9 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/lt.7dcf87c3c9fcc1be.0.woff22356037.0 s12.3 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/lt.37a6c7d91c8498b1.3.woff2602954.0 s9.7 KiB
cdn.cnbj1.fds.api.mi-img.com/common/jsonp.min.js86400.0 s1.4 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/500/lt.b16e5debfe3729dc.5.woff21132303.0 s5.3 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/700/lt.2b2cd3bc8c621559.5.woff2706300.0 s5.2 KiB
cdn-file.hyperos.mi.com/mi-font-service/misans/400/lt.901de8df15597807.5.woff21652034.0 s5.2 KiB

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:3643.5469990234374 label:Time to first byte subpart:timeToFirstByte] map[duration:578.3070009765624 label:Resource load delay subpart:resourceLoadDelay] map[duration:113.165 label:Resource load duration subpart:resourceLoadDuration] map[duration:163.478 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: div.desktop:flex > div.tablet:w-[337px] > div > img
path: 1,HTML,1,BODY,0,DIV,0,MAIN,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,IMG
selector: div.desktop:flex > div.tablet:w-[337px] > div > img
snippet: <img src="https://cia.sec.miui.com/miui-14-homepage/phone.png?imageMogr2/thumbnail/4…" decoding="async" style="display: block; position: absolute; top: 0px; height: 100%; left: 0px;">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: div.desktop:flex > div.tablet:w-[337px] > div > img
path: 1,HTML,1,BODY,0,DIV,0,MAIN,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,IMG
selector: div.desktop:flex > div.tablet:w-[337px] > div > img
snippet: <img src="https://cia.sec.miui.com/miui-14-homepage/phone.png?imageMogr2/thumbnail/4…" decoding="async" style="display: block; position: absolute; top: 0px; height: 100%; left: 0px;">

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
/font/css?family=MiSans:300,450,500,650:Chinese_Simplify,...165.0 KiB362 ms

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: 1.3 s
URLTime Spent
miui.com/1.3 s
home.miui.com/0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 2.0 s
URLTime Spent
home.miui.com/2.1 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 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: 120 ms 181.4 KiB
URLTransfer SizeEst Savings
/font/css?family=MiSans:300,450,500,650:Chinese_Simplify,...164.8 KiB164.8 KiB
home.miui.com/_next/static/css/75b70099a3cc6a49.css20.2 KiB16.6 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 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 2.4 KiB
URLTransfer SizeEst Savings
cdn.cnbj1.fds.api.mi-img.com/common/jweixin-1.6.0.js5.1 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 45.8 KiB
URLTransfer SizeEst Savings
home.miui.com/_next/static/chunks/pages/_app-dedfdfe4da840c5e.js62.7 KiB45.8 KiB

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

●Layout shift culprits
●Optimize DOM size
●Font display
●Forced reflow
●Improve image delivery
●Modern HTTP
●Optimize viewport for mobile
●Max Potential First Input Delay 30 ms
●Minify CSS
●Avoids enormous network payloads Total size was 2,113 KiB
●User Timing marks and measures 7 user timings
●JavaScript execution time 0.1 s
●Minimizes main-thread work 0.5 s
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 240 ms
●Server Backend Latencies 1,060 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid large layout shifts 2 layout shifts found
○INP breakdown
○Avoid long main-thread tasks
○Avoid non-composited animations
75

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
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
发布时间 div.safe-area > div.flex > div > p.text-caption
前往了解小米澎湃OS div.pointer-events-none > div.fixed > a.bg-[#3482FF] > div.mr-[6px]
参与调研 a > div.flex > div.ml-[18px] > div.mt-4
声明与说明 本页面中部分功能和服务可能因系统版本、手机型号不同存在差异，请以实际为准。 本页面所展示的内容和功能，不能保证能够提供永久服务，可能会因版权、商务… main > div.text-black > div.safe-area > div.text-[12px]
本页面中部分功能和服务可能因系统版本、手机型号不同存在差异，请以实际为准。 div.safe-area > div.text-[12px] > ul.ml-24 > li
本页面所展示的内容和功能，不能保证能够提供永久服务，可能会因版权、商务或技术条件的变化而调整，请以产品实际内容和功能为准。 div.safe-area > div.text-[12px] > ul.ml-24 > li
本页涉及的测试数据均来自小米实验室，均采用相同平台且配置相近设备，多次测试中数据可能存在小范围波动。 div.safe-area > div.text-[12px] > ul.ml-24 > li
新浪微博  |   官方微信  |  隐私政策  |  预置应用查询  |   简体中文 Copyright©2022 MIUI 京ICP备10046444号… main > div.text-black > div.safe-area > div.text-[12px]
新浪微博  |   官方微信  |  隐私政策  |  预置应用查询  |   简体中文 div.text-black > div.safe-area > div.text-[12px] > div
新浪微博 div.safe-area > div.text-[12px] > div > a.hover:underline
官方微信 div.text-[12px] > div > div.inline-block > div.relative
隐私政策 div.safe-area > div.text-[12px] > div > a.hover:underline
预置应用查询 div.safe-area > div.text-[12px] > div > a.hover:underline
简体中文 div.safe-area > div.text-[12px] > div > div.relative
京ICP备10046444号 div.text-black > div.safe-area > div.text-[12px] > a.hover:underline
 京公网安备 11010802037409号 div.text-black > div.safe-area > div.text-[12px] > a.hover:underline

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
2010年8月16日 div.safe-area > div.flex > div > h3.text-h3
2010年10月29日 div.safe-area > div.flex > div > h3.text-h3
2011年3月25日 div.safe-area > div.flex > div > h3.text-h3
2012年1月19日 div.safe-area > div.flex > div > h3.text-h3
2013年3月1日 div.safe-area > div.flex > div > h3.text-h3
2014年8月16日 div.safe-area > div.flex > div > h3.text-h3
2015年8月13日 div.safe-area > div.flex > div > h3.text-h3
2016年5月10日 div.safe-area > div.flex > div > h3.text-h3
2017年7月26日 div.safe-area > div.flex > div > h3.text-h3
2018年5月31日 div.safe-area > div.flex > div > h3.text-h3
2019年9月24日 div.safe-area > div.flex > div > h3.text-h3
2020年4月27日 div.safe-area > div.flex > div > h3.text-h3
2021年12月28日 div.safe-area > div.flex > div > h3.text-h3
2022年12月11日 div.safe-area > div.flex > div > h3.text-h3

These are opportunities to improve keyboard navigation in your application.

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
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
div.absolute > div.self-center > div > img div.absolute > div.self-center > div > img
div.desktop:flex > div.tablet:w-[337px] > div > img div.desktop:flex > div.tablet:w-[337px] > div > img
div.flex > div.w-[487px] > div > img div.flex > div.w-[487px] > div > img
div.flex > div.w-[450px] > div > img div.flex > div.w-[450px] > div > img
div.flex > div.w-[465px] > div > img div.flex > div.w-[465px] > div > img
div.flex > div.w-[423px] > div > img div.flex > div.w-[423px] > div > img
div.flex > div.w-[442px] > div > img div.flex > div.w-[442px] > div > img
div.flex > div.w-[420px] > div > img div.flex > div.w-[420px] > div > img
div.flex > div.w-[530px] > div > img div.flex > div.w-[530px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[446px] > div > img div.flex > div.w-[446px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[417px] > div > img div.flex > div.w-[417px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[422px] > div > img div.flex > div.w-[422px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[430px] > div > img div.flex > div.w-[430px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[406px] > div > img div.flex > div.w-[406px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[415px] > div > img div.flex > div.w-[415px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[405px] > div > img div.flex > div.w-[405px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.fixed > a.bg-[#3482FF] > div.w-24 > img div.fixed > a.bg-[#3482FF] > div.w-24 > 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-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●ARIA attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●All heading elements contain content.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○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 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
○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
○`<html>` element has a valid value for its `[lang]` attribute
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○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>`.
○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.
hm.baidu.com/hm.js?48d720a449f859af28f0c2975455d83a line 1, col 274

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
cdn.cnbj1.fds.api.mi-img.com/miui-14-video/log-json/userNames0.json
Failed to load resource: the server responded with a status of 403 ()
home.miui.com/_next/static/chunks/22-5eba672c80cdf4ec.js line 5, col 40830
ti
●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
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
91

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.

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
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
span.w-full > span.inline-block > div.hidden > img span.w-full > span.inline-block > div.hidden > img
div.absolute > div.self-center > div > img div.absolute > div.self-center > div > img
div.desktop:flex > div.tablet:w-[337px] > div > img div.desktop:flex > div.tablet:w-[337px] > div > img
div.flex > div.w-[487px] > div > img div.flex > div.w-[487px] > div > img
div.flex > div.w-[450px] > div > img div.flex > div.w-[450px] > div > img
div.flex > div.w-[465px] > div > img div.flex > div.w-[465px] > div > img
div.flex > div.w-[423px] > div > img div.flex > div.w-[423px] > div > img
div.flex > div.w-[442px] > div > img div.flex > div.w-[442px] > div > img
div.flex > div.w-[420px] > div > img div.flex > div.w-[420px] > div > img
div.flex > div.w-[530px] > div > img div.flex > div.w-[530px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[446px] > div > img div.flex > div.w-[446px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[417px] > div > img div.flex > div.w-[417px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[422px] > div > img div.flex > div.w-[422px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[430px] > div > img div.flex > div.w-[430px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[406px] > div > img div.flex > div.w-[406px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[415px] > div > img div.flex > div.w-[415px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.flex > div.w-[405px] > div > img div.flex > div.w-[405px] > div > img
div > h1.text-h1 > div.mb-[34px] > img div > h1.text-h1 > div.mb-[34px] > img
div.fixed > a.bg-[#3482FF] > div.w-24 > img div.fixed > a.bg-[#3482FF] > div.w-24 > 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
●Links are crawlable
●Document has a valid `hreflang`
○robots.txt is valid
○Document has a valid `rel=canonical`

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