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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.

68

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
pubdz.paperol.cn/png/%E9%97%AE%E5%8D%B7%E6%98%9FAI%E5%8A%A9%E6%89%8B@2x.png0.0 ms57.3 KiB
image.wjx.cn/wjxUI/font/1070120/iconfont.woff2?t=16539675098980.0 ms51.7 KiB
image.wjx.cn/cdn/jquery/1.10.2/jquery.min.js0.0 ms32.7 KiB
image.wjx.com/images/newimg/wjx-phone/wjx-banner-mb.png?v=2864000.0 s132.7 KiB
www.wjx.cn/js/swiper.min.js86400.0 s31.1 KiB
image.wjx.com/images/newimg/wjx-phone/home-sprite@1x.png864000.0 s85.3 KiB
www.wjx.cn/newwjx/css/default.css?v=70.0 ms4.7 KiB
image.wjx.com/images/newimg/wjx-phone/send1-b@2x.png864000.0 s41.5 KiB
image.wjx.com/images/newimg/wjx-phone/send2-b@2x.png864000.0 s35.1 KiB
image.wjx.com/images/newimg/wjx-phone/data2-b@2x.png864000.0 s34.6 KiB
image.wjx.com/images/newimg/wjx-phone/qrcode_for_gh_3e600ae54793_258.jpg864000.0 s27.5 KiB
image.wjx.com/images/newimg/wjx-phone/editor2-b@2x.png864000.0 s24.9 KiB
image.wjx.com/images/newimg/wjx-phone/MaxDiff-b@2x.png864000.0 s24.7 KiB
www.wjx.cn/newwjx/js/wjx-phone.js?v=10.0 ms2.2 KiB
image.wjx.com/images/newimg/wjx-phone/editor1-b@2x.png864000.0 s21.4 KiB
image.wjx.com/images/newimg/wjx-phone/data1-b@2x.png864000.0 s19.6 KiB
image.wjx.com/images/newimg/ultimate-edition/qr-code@2x.png?v=1864000.0 s19.4 KiB
image.wjx.com/images/newimg/wjx-phone/satisfaction-b@2x.png864000.0 s19.0 KiB
www.wjx.cn/css/wjx-phone.css?v=15432000.0 s7.4 KiB
image.wjx.com/images/newimg/wjx-phone/down-banner-b@2x.png864000.0 s8.3 KiB
image.wjx.com/images/Index/sucai-left@2x.png864000.0 s5.3 KiB
www.wjx.cn/css/swiper.min.css432000.0 s3.3 KiB
image.wjx.com/images/newimg/wjx-phone/logo-top-small.png864000.0 s4.1 KiB
www.wjx.cn/images/newimg/wjx-phone/newproduct.png864000.0 s4.0 KiB
image.wjx.com/images/newimg/index/navi-360@2x.png864000.0 s3.6 KiB
image.wjx.com/images/newimg/wjx-phone/assessment-b.png864000.0 s3.6 KiB
image.wjx.com/images/newimg/index/navi-talent@2x.png864000.0 s3.6 KiB
image.wjx.com/images/newimg/index/navi-vip@2x.png864000.0 s3.6 KiB
image.wjx.com/images/newimg/index/navi-qywx@2x.png864000.0 s3.4 KiB
image.wjx.com/images/newimg/index/navi-solitaire@2x.png864000.0 s3.3 KiB
image.wjx.com/images/newimg/index/navi-bendihua@2x.png864000.0 s3.1 KiB
image.wjx.com/images/newimg/index/navi-enterprise@2x.png864000.0 s3.0 KiB
image.wjx.cn/images/newimg/index/wjx-logo.png864000.0 s2.9 KiB
image.wjx.com/images/newimg/index/navi-ultimate@2x.png864000.0 s2.9 KiB
image.wjx.com/images/newimg/wjx-phone/enterprise-b@2x.png864000.0 s2.6 KiB
image.wjx.cn/images/newimg/index/360-logo.png864000.0 s2.4 KiB
image.wjx.com/images/newimg/index/ygty.png864000.0 s2.4 KiB
image.wjx.com/images/newimg/index/navi-test@2x.png864000.0 s2.3 KiB
image.wjx.com/images/newimg/wjx-phone/test-b@2x.png864000.0 s2.3 KiB
image.wjx.com/images/newimg/index/custy.png864000.0 s2.2 KiB
image.wjx.com/images/newimg/index/navi-dingtalk@2x.png864000.0 s2.2 KiB
image.wjx.com/images/newimg/index/navi-measurement@2x.png864000.0 s2.2 KiB
image.wjx.com/images/newimg/wjx-phone/flagship-b@2x.png864000.0 s2.1 KiB
image.wjx.com/images/newimg/index/navi-form@2x.png864000.0 s2.0 KiB
image.wjx.com/images/newimg/wjx-phone/enjoy-b@2x.png864000.0 s2.0 KiB
image.wjx.com/images/newimg/index/navi-survey@2x.png864000.0 s2.0 KiB
image.wjx.com/images/newimg/wjx-phone/form-b.png864000.0 s1.9 KiB
image.wjx.com/images/newimg/wjx-phone/survey-b@2x.png864000.0 s1.9 KiB
image.wjx.com/images/newimg/wjx-phone/free-b@2x.png864000.0 s1.9 KiB
image.wjx.com/images/newimg/index/reservation@2x.png864000.0 s1.8 KiB
image.wjx.com/images/newimg/wjx-phone/measurement-b.png864000.0 s1.8 KiB
image.wjx.com/images/newimg/index/navi-vote@2x.png864000.0 s1.8 KiB
image.wjx.com/images/newimg/index/navi-addressbook@2x.png864000.0 s1.7 KiB
image.wjx.com/images/newimg/index/payment@2x.png864000.0 s1.7 KiB
image.wjx.com/images/newimg/index/navi-contacts@2x.png864000.0 s1.6 KiB
image.wjx.com/images/newimg/wjx-phone/vote-b@2x.png864000.0 s1.6 KiB
image.wjx.com/images/index/icon-satisfaction@2x.png864000.0 s1.0 KiB
image.wjx.com/images/index/icon-MaxDiff@2x.png864000.0 s931 B
image.wjx.com/images/newimg/index/arrow-right@2x.png864000.0 s660 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
image.wjx.cn/wjxUI/font/1070120/iconfont.woff2?t=165396750989845 ms

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:92.376 source:map[type:text value:[unattributed]]]]

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
section.full-page-wrapper > nav#navbar > div.container-phone > div#slide-nav section.full-page-wrapper > nav#navbar > div.container-phone > div#slide-nav
image.wjx.com/images/newimg/wjx-phone/home-sprite@1x.png84.7 KiB81.7 KiB
问卷星AI助手 div.sticky-wrapper > div.wjx-decoration > div.container-phone > a#hrefNcov
pubdz.paperol.cn/png/%E9%97%AE%E5%8D%B7%E6%98%9FAI%E5%8A%A9%E6%89%8B@2x.png56.7 KiB49.4 KiB
问卷星公众号 section.wjx-footer > dl.wjx-follow > dd.pull-left > img.logo-mobile
image.wjx.com/images/newimg/wjx-phone/qrcode_for_gh_3e600ae54793_258.jpg26.9 KiB19.7 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:1484.4460009765626 label:Time to first byte subpart:timeToFirstByte] map[duration:724.9339990234375 label:Resource load delay subpart:resourceLoadDelay] map[duration:2864.358 label:Resource load duration subpart:resourceLoadDuration] map[duration:19.207 label:Element render delay subpart:elementRenderDelay]]
lhId: page-1-A
nodeLabel: 问卷星AI助手
path: 1,HTML,1,BODY,0,SECTION,2,HEADER,1,DIV,0,DIV,0,DIV,5,A
selector: div.sticky-wrapper > div.wjx-decoration > div.container-phone > a#hrefNcov
snippet: <a href="https://www.wjx.cn/app/themehtml/wjxai.aspx" id="hrefNcov" class="markey-serve btn" style="background-image: url(&quot;https://pubdz.paperol.cn/png/%E9%97%AE%E5%8D%B7%E6%98…&quot;);">

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-1-A
nodeLabel: 问卷星AI助手
path: 1,HTML,1,BODY,0,SECTION,2,HEADER,1,DIV,0,DIV,0,DIV,5,A
selector: div.sticky-wrapper > div.wjx-decoration > div.container-phone > a#hrefNcov
snippet: <a href="https://www.wjx.cn/app/themehtml/wjxai.aspx" id="hrefNcov" class="markey-serve btn" style="background-image: url(&quot;https://pubdz.paperol.cn/png/%E9%97%AE%E5%8D%B7%E6%98…&quot;);">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
www.wjx.cn/http/1.1
www.wjx.cn/css/swiper.min.csshttp/1.1
www.wjx.cn/newwjx/css/default.css?v=7http/1.1
www.wjx.cn/css/wjx-phone.css?v=15http/1.1
www.wjx.cn/images/newimg/wjx-phone/newproduct.pnghttp/1.1
www.wjx.cn/js/swiper.min.jshttp/1.1
www.wjx.cn/newwjx/js/wjx-phone.js?v=1http/1.1
www.wjx.cn/js/baidutg.js?v=6091http/1.1
www.wjx.cn/favicon.icohttp/1.1

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
www.wjx.cn/css/wjx-phone.css?v=157.4 KiB711 ms
www.wjx.cn/newwjx/css/default.css?v=74.7 KiB711 ms
www.wjx.cn/css/swiper.min.css3.3 KiB403 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: 1.5 s
URLTime Spent
wjx.cn/1.5 s
www.wjx.cn/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

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
Other923 ms
Rendering560 ms
Style & Layout551 ms
Script Evaluation188 ms
Parse HTML & CSS29 ms
Script Parsing & Compilation23 ms

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
跳转/关联/引用等逻辑搭建复杂问卷 div.create_third_step > div.create_step1 > div.step_img_list > img.pull-right
image.wjx.com/images/newimg/wjx-phone/editor3-b@2x.png
交叉分析及在线深度 div.create_third_step > div.create_step3 > div.step_img_list > img.pull-right
image.wjx.com/images/newimg/wjx-phone/data3-b@2x.png
问卷调查 li > a#hrefApp1 > div > img
image.wjx.com/images/newimg/wjx-phone/survey-b@2x.png
在线考试 li > a#hrefApp2 > div > img
image.wjx.com/images/newimg/wjx-phone/test-b@2x.png
报名表单 li > a#hrefApp3 > div > img
image.wjx.com/images/newimg/wjx-phone/form-b.png
360度评估 li > a#hrefApp4 > div > img
image.wjx.com/images/newimg/wjx-phone/assessment-b.png
顾客满意度调查,客户满意度调查 li > a#hrefApp5 > div > img
image.wjx.com/images/newimg/wjx-phone/vote-b@2x.png
调查问卷设计,在线测评 li > a#hrefApp6 > div > img
image.wjx.com/images/newimg/wjx-phone/measurement-b.png
通过短信/邮件一对一发送 div.create_third_step > div.create_step2 > div.step_img_list > img.pull-right
问卷星免费版 div > ul.clearfix > li.free_version > img
问卷星企业标准版 div > ul.clearfix > li.enterprise_version > img
问卷星企业尊享版 div > ul.clearfix > li.zunxiang_version > img
问卷星企业旗舰版 div > ul.clearfix > li.flagship_version > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
问卷星用户 div.float_img_box > div > div > img
div > div > div > img div > div > div > img

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

●Layout shift culprits
●Optimize DOM size
●Optimize viewport for mobile
●Max Potential First Input Delay 50 ms
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●Reduce unused JavaScript
●Avoids enormous network payloads Total size was 799 KiB
●JavaScript execution time 0.2 s
●Avoid long main-thread tasks 2 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 240 ms
●Server Backend Latencies 1,740 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 260 ms
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
○Avoid large layout shifts
76

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
员工内部调查 学术科研调查 用户客户调查 消费市场调查 ul.clearfix > li > a#hrefApp1 > p
查看详情 ul.clearfix > li > a#hrefApp1 > div.click_blue_link
课后练习考试 应知应会考核 业务培训考核 法规知识竞赛 ul.clearfix > li > a#hrefApp2 > p
查看详情 ul.clearfix > li > a#hrefApp2 > div.click_blue_link
报名表单、回执签到 流程审批、信息收集 ul.clearfix > li > a#hrefApp3 > p
查看详情 ul.clearfix > li > a#hrefApp3 > div.click_blue_link
绩效评估、人才测评 人才盘点、教学评估 ul.clearfix > li > a#hrefApp4 > p
查看详情 ul.clearfix > li > a#hrefApp4 > div.click_blue_link
推优评优、文字评选 图片评选、视频评选 ul.clearfix > li > a#hrefApp5 > p
查看详情 ul.clearfix > li > a#hrefApp5 > div.click_blue_link
心理测评、职业测评 性格测评、趣味测评 ul.clearfix > li > a#hrefApp6 > p
查看详情 ul.clearfix > li > a#hrefApp6 > div.click_blue_link
更多应用 body.fp-viewing > div.nine-box > div.more_app > a
立即购买 div > ul.clearfix > li.enterprise_version > a
立即购买 div > ul.clearfix > li.zunxiang_version > a
联系我们 div > ul.clearfix > li.flagship_version > a
更多 → div.template_item > dl > dd.last_dd > a
更多 → div.template_item > dl > dd.last_dd > a
更多模板 → div.bg_add_box > div.wjxhome__user > div.wjx_index_btn > a.btn
湘ICP备17005436号-1 body.fp-viewing > section.wjx-footer > footer > a#hrefBeiAn
湘公网安备 43019002000245号 body.fp-viewing > section.wjx-footer > footer > a#hrefGongan
ICP证：湘B2-20220508 body.fp-viewing > section.wjx-footer > footer > span
长沙冉星信息科技有限公司 版权所有 body.fp-viewing > section.wjx-footer > footer > span
网站数据来源于问卷星官方数据库 body.fp-viewing > section.wjx-footer > footer > div
用户服务协议 section.wjx-footer > footer > div > a.link_grey
隐私条款 section.wjx-footer > footer > div > a.link_grey
随时为您服务 div > div > div > p
在线咨询 body.fp-viewing > div > div > div
4009935858 div > div > div > a

These are opportunities to improve the legibility of your content.

Tables and lists

When definition lists are not properly marked up, screen readers may produce confusing or inaccurate output. Learn how to structure definition lists correctly.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
关注问卷星公众号 用手机管理问卷 400-993-5858 cs@wjx.cn 电脑版 body.fp-viewing > section.wjx-footer > dl.wjx-follow

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

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 > div > div > img div > div > div > 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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●Definition list items are wrapped in `<dl>` elements
●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.
●Heading elements appear in a sequentially-descending order
●Image elements do not have `[alt]` attributes that are redundant text.
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○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
○`[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
○Buttons have an accessible name
○The page contains a heading, skip link, or landmark region
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has a valid value for its `[lang]` attribute
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○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.
96

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
满意度调查模型 div.survey-mode_tit > ul.clearfix > li > img.survey_bg_img
image.wjx.com/images/newimg/wjx-phone/satisfaction-b@2x.png184 x 301 (0.61)330 x 504 (0.65)
MaxDiff模型 div.survey-mode_tit > ul.clearfix > li > img.survey_bg_img
image.wjx.com/images/newimg/wjx-phone/MaxDiff-b@2x.png184 x 301 (0.61)330 x 504 (0.65)
长按识别二维码 body.fp-viewing > div.touch-vcode > div > img
image.wjx.com/images/newimg/ultimate-edition/qr-code@2x.png?v=1148 x 396 (0.37)396 x 396 (1.00)
div#slide-menu > ul.navbar-nav > li.sample_jcy_navbar > img div#slide-menu > ul.navbar-nav > li.sample_jcy_navbar > img
www.wjx.cn/images/newimg/wjx-phone/newproduct.png32 x 32 (1.00)72 x 32 (2.25)
在线培训考试系统 ul > div.split_word > a > img
image.wjx.com/images/newimg/index/arrow-right@2x.png20 x 28 (0.71)28 x 28 (1.00)
●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
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
85

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
更多应用 body.fp-viewing > div.nine-box > div.more_app > a
联系我们 div > ul.clearfix > li.flagship_version > a

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 > div > div > img div > div > div > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●robots.txt is valid
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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