Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

Request	Cache TTL	Transfer Size
imgi.xinnet.com/static/m-xinnet/images/index/bg_prd0.a56ccef.png	0.0 ms	773.4 KiB
imgi.xinnet.com/static/m-xinnet/images/index/bg_prd1.32179e2.png	0.0 ms	687.0 KiB
imgi.xinnet.com/static/m-xinnet/images/index/box1.8c13363.png	0.0 ms	466.7 KiB
imgi.xinnet.com/static/m-xinnet/images/index/banner_bot.b34f85c.png	0.0 ms	416.0 KiB
imgi.xinnet.com/static/m-xinnet/images/index/box2.bc954be.png	0.0 ms	368.5 KiB
imgi.xinnet.com/static/m-xinnet/images/index/box0.fc919c8.png	0.0 ms	356.6 KiB
imgi.xinnet.com/archive/images/2025/07/22/777.png	0.0 ms	96.0 KiB
imgi.xinnet.com/static/common/vue.js	0.0 ms	79.1 KiB
imgi.xinnet.com/static/common/vant/vant.min.js	0.0 ms	78.3 KiB
imgi.xinnet.com/static/m-xinnet/images/index/why3.37f0d0d.png	0.0 ms	65.3 KiB
imgi.xinnet.com/static/m-xinnet/images/index/why1.7cc16a7.png	0.0 ms	58.4 KiB
imgi.xinnet.com/static/m-xinnet/images/index/why2.386b7df.png	0.0 ms	54.9 KiB
imgi.xinnet.com/static/common/sensorsdata.min.js	0.0 ms	51.6 KiB
imgi.xinnet.com/static/m-xinnet/images/index/why4.988344b.png	0.0 ms	45.8 KiB
imgi.xinnet.com/static/m-xinnet/images/index/auth.90bf500.png	0.0 ms	42.0 KiB
imgi.xinnet.com/static/common/vant/vant.min.css	0.0 ms	41.7 KiB
imgi.xinnet.com/static/m-xinnet/images/20260302/open-redEnvelope.0465192.png	0.0 ms	39.5 KiB
imgi.xinnet.com/static/m-xinnet/images/index/bg_prd2.553e2b6.png	0.0 ms	37.8 KiB
imgi.xinnet.com/static/m-xinnet/images/common/service2@2x.856ce01.png	0.0 ms	33.6 KiB
imgi.xinnet.com/static/common/polyfill.min.js?v=prod-0.0.428	0.0 ms	33.6 KiB
imgi.xinnet.com/static/m-xinnet/images/index/line-boxShadow.52e3804.png	0.0 ms	31.2 KiB
imgi.xinnet.com/static/m-xinnet/images/common/service1@2x.c88d09d.png	0.0 ms	24.4 KiB
imgi.xinnet.com/static/common/swiper/swiper.min.js?v=prod-0.0.428	0.0 ms	23.5 KiB
imgi.xinnet.com/static/m-xinnet/images/20260302/five-redEnvelope.0dc6348.png	0.0 ms	17.4 KiB
analytics.oceanengine.com/api/v2/js/sdk	0.0 ms	16.9 KiB
imgi.xinnet.com/static/m-xinnet/images/index/icon_ssl@2x.bbe3edd.png	0.0 ms	11.5 KiB
/static/common/bootstrap-3.3.7-dist/js/bootstrap.min.js?v...	0.0 ms	9.8 KiB
imgi.xinnet.com/static/m-xinnet/images/index/icon_gift@2x.3462467.png	0.0 ms	9.0 KiB
imgi.xinnet.com/static/xinnet/images/newIndex/img_20.93eab7e.png	0.0 ms	8.9 KiB
imgi.xinnet.com/static/m-xinnet/images/common/ga.8bea214.png	0.0 ms	8.3 KiB
imgi.xinnet.com/static/xinnet/images/newIndex/logo.1a7a2e6.png	0.0 ms	8.2 KiB
imgi.xinnet.com/static/xinnet/images/227c2524e26bee85f78c0342ac02b5d6.png	0.0 ms	7.6 KiB
imgi.xinnet.com/static/common/embla-carousel.js	0.0 ms	7.2 KiB
imgi.xinnet.com/static/xinnet/images/71c9a2fe3ec2fe13b8816f4992e74751.png	0.0 ms	7.1 KiB
imgi.xinnet.com/static/m-xinnet/images/index/pic_djcp.6afc02a.png	0.0 ms	6.5 KiB
imgi.xinnet.com/static/m-xinnet/images/index/pic_cctga.eecfda7.png	0.0 ms	6.3 KiB
imgi.xinnet.com/static/m-xinnet/images/index/pic_trucs.59a1d09.png	0.0 ms	5.9 KiB
imgi.xinnet.com/static/m-xinnet/images/index/pic_cnnic.441a7d7.png	0.0 ms	5.5 KiB
imgi.xinnet.com/static/xinnet/images/ee0fed45695ac6251e49ef13ff0a6b5f.png	0.0 ms	5.5 KiB
imgi.xinnet.com/static/xinnet/images/newIndex/img_21.e93e1a2.png	0.0 ms	5.2 KiB
imgi.xinnet.com/static/common/axios.min.js	0.0 ms	5.0 KiB
imgi.xinnet.com/static/m-xinnet/images/index/pic_gds.510f6cf.png	0.0 ms	5.0 KiB
imgi.xinnet.com/static/m-xinnet/js/utils.min.js?v=prod-0.0.428	0.0 ms	4.6 KiB
imgi.xinnet.com/static/common/domainSearchData.js?v=prod-0.0.428	0.0 ms	3.8 KiB
imgi.xinnet.com/static/xinnet/images/index/img_22.1f63fad.png	0.0 ms	3.8 KiB
imgi.xinnet.com/static/m-xinnet/css/index.min.css?v=prod-0.0.428	0.0 ms	3.4 KiB
imgi.xinnet.com/static/m-xinnet/css/styles.min.css?v=prod-0.0.430	0.0 ms	3.4 KiB
imgi.xinnet.com/static/m-xinnet/images/index/whyIcon4.0f945c8.png	0.0 ms	2.9 KiB
imgi.xinnet.com/static/m-xinnet/js/index.min.js?v=prod-0.0.428	0.0 ms	2.7 KiB
imgi.xinnet.com/static/m-xinnet/images/index/whyIcon3.79d9f81.png	0.0 ms	2.7 KiB
imgi.xinnet.com/static/m-xinnet/images/index/whyIcon2.353d556.png	0.0 ms	2.7 KiB
imgi.xinnet.com/static/m-xinnet/images/index/whyIcon1.5a07139.png	0.0 ms	2.2 KiB
imgi.xinnet.com/static/common/m-xinnet_global_track.js?v=prod-0.0.428	0.0 ms	2.2 KiB
imgi.xinnet.com/static/m-xinnet/images/common/logo2.6304462.png	0.0 ms	2.2 KiB
imgi.xinnet.com/static/common/embla-carousel-autoplay.js	0.0 ms	1.2 KiB
imgi.xinnet.com/static/xinnet/images/hot.gif	0.0 ms	1.0 KiB
imgi.xinnet.com/static/common/embla-carousel-tween-scale.js	0.0 ms	910 B
/jsonp/list?callback=myJsonp06667391732365066&groupCodes%...	0.0 ms	568 B
login.xinnet.com/jsonp/getUserName?callback=myJsonp03534222785694682	0.0 ms	403 B
login.xinnet.com/jsonp/getUserName?callback=myJsonp05826574723939832	0.0 ms	197 B
imgi.xinnet.com/static/common/UA.js?v=prod-0.0.428	0.0 ms	0 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.8688429999999999] map[score:0.868821 subItems:map[items:[map[cause:Unsized image element]] type:subitems]] map[score:2.2e-05]]

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.

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.

URL	Transfer Size	Duration
imgi.xinnet.com/static/m-xinnet/css/index.min.css?v=prod-0.0.428	3.4 KiB
imgi.xinnet.com/static/common/vant/vant.min.css	41.7 KiB	1.2 s
imgi.xinnet.com/static/m-xinnet/css/styles.min.css?v=prod-0.0.430	3.4 KiB	150 ms
imgi.xinnet.com/static/common/UA.js?v=prod-0.0.428	0 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.

	URL	Resource Size	Est Savings
div#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/bg_prd0.a56ccef.png	772.4 KiB	735.2 KiB
div#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/bg_prd1.32179e2.png	686.0 KiB	648.9 KiB
div#app-main > div.cooperative-partner > div.box > img.bgImg `div#app-main > div.cooperative-partner > div.box > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/box1.8c13363.png	465.8 KiB	419.2 KiB
body > div#app-main > div.banner-bot > img.bgImg `body > div#app-main > div.banner-bot > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/banner_bot.b34f85c.png	415.2 KiB	372.3 KiB
div#app-main > div.cooperative-partner > div.box > img.bgImg `div#app-main > div.cooperative-partner > div.box > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/box2.bc954be.png	367.8 KiB	321.2 KiB
div#app-main > div.cooperative-partner > div.box > img.bgImg `div#app-main > div.cooperative-partner > div.box > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/box0.fc919c8.png	356.0 KiB	309.4 KiB
div#app-main > div.authWrap > div.row1 > img.title `div#app-main > div.authWrap > div.row1 > img.title`	imgi.xinnet.com/static/m-xinnet/images/index/auth.90bf500.png	41.8 KiB	38.4 KiB
div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg `div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/why3.37f0d0d.png	65.1 KiB	35.1 KiB
div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg `div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/why1.7cc16a7.png	58.2 KiB	28.2 KiB
body > div#app-main > div.authWrap > img.shadow `body > div#app-main > div.authWrap > img.shadow`	imgi.xinnet.com/static/m-xinnet/images/index/line-boxShadow.52e3804.png	31.0 KiB	26.9 KiB
div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg `div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/why2.386b7df.png	54.7 KiB	24.7 KiB
div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg `div.embla__container > div.embla__slide > div.embla__slide__number > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/why4.988344b.png	45.6 KiB	15.7 KiB
div.main-banner > div.banner-hover > a.trackBannerHover > img `div.main-banner > div.banner-hover > a.trackBannerHover > img`	imgi.xinnet.com/static/m-xinnet/images/index/icon_ssl@2x.bbe3edd.png	11.3 KiB	10.7 KiB
div.main-banner > div.banner-hover > a.trackBannerHover > img `div.main-banner > div.banner-hover > a.trackBannerHover > img`	imgi.xinnet.com/static/m-xinnet/images/index/icon_gift@2x.3462467.png	8.8 KiB	8.2 KiB
div.footer > div.row2 > a > img.gaIcon `div.footer > div.row2 > a > img.gaIcon`	imgi.xinnet.com/static/m-xinnet/images/common/ga.8bea214.png	8.2 KiB	8.1 KiB
大众点评 `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/227c2524e26bee85f78c0342ac02b5d6.png	7.5 KiB	6.1 KiB
中国人民财产保险 `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/71c9a2fe3ec2fe13b8816f4992e74751.png	6.9 KiB	5.5 KiB

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

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.

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: 5.3 s

URL	Time Spent
xinnet.com/	1.3 s
www.xinnet.com/	4.0 s
m.xinnet.com/	0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Layout shift score
0.869
0.000

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: 180 ms 41.3 KiB

URL	Transfer Size	Est Savings
imgi.xinnet.com/static/common/vant/vant.min.css	41.6 KiB	41.3 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
m.xinnet.com/	1.3 s	14 ms	2.4 ms
analytics.oceanengine.com/api/v2/js/sdk	893 ms	885 ms	4.5 ms
Unattributable	737 ms	5.8 ms	0.0 ms
imgi.xinnet.com/static/common/embla-carousel.js	510 ms	123 ms	1.6 ms
imgi.xinnet.com/static/m-xinnet/js/index.min.js?v=prod-0.0.428	218 ms	164 ms	0.9 ms
imgi.xinnet.com/static/m-xinnet/js/utils.min.js?v=prod-0.0.428	134 ms	110 ms	1.7 ms
imgi.xinnet.com/static/common/m-xinnet_global_track.js?v=prod-0.0.428	83 ms	80 ms	1.0 ms
imgi.xinnet.com/static/common/vant/vant.min.js	81 ms	60 ms	20 ms
imgi.xinnet.com/static/common/vue.js	63 ms	28 ms	34 ms
s.union.360.cn/497875.js	55 ms	48 ms	3.4 ms

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.

Category	Time Spent
Script Evaluation	1.6 s
Other	1.6 s
Style & Layout	542 ms
Rendering	404 ms
Script Parsing & Compilation	97 ms
Parse HTML & CSS	61 ms
Garbage Collection	11 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 reason	Failure 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 30.6 KiB

URL	Transfer Size	Est Savings
imgi.xinnet.com/static/common/vue.js	79.0 KiB	30.6 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 87.9 KiB

URL	Transfer Size	Est Savings
imgi.xinnet.com/static/common/vant/vant.min.js	77.9 KiB	58.3 KiB
imgi.xinnet.com/static/common/sensorsdata.min.js	51.5 KiB	29.5 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
imgi.xinnet.com/static/m-xinnet/images/index/bg_prd0.a56ccef.png	773.4 KiB
imgi.xinnet.com/static/m-xinnet/images/index/bg_prd1.32179e2.png	687.0 KiB
imgi.xinnet.com/static/m-xinnet/images/index/box1.8c13363.png	466.7 KiB
imgi.xinnet.com/static/m-xinnet/images/index/banner_bot.b34f85c.png	416.0 KiB
imgi.xinnet.com/static/m-xinnet/images/index/box2.bc954be.png	368.5 KiB
imgi.xinnet.com/static/m-xinnet/images/index/box0.fc919c8.png	356.6 KiB
www.xinnet.com/	164.3 KiB
imgi.xinnet.com/archive/images/2025/07/22/777.png	96.0 KiB
imgi.xinnet.com/static/common/vue.js	79.1 KiB
imgi.xinnet.com/static/common/vant/vant.min.js	78.3 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
body > div#app-main > div.banner-bot > img.bgImg `body > div#app-main > div.banner-bot > img.bgImg`	imgi.xinnet.com/static/m-xinnet/images/index/banner_bot.b34f85c.png
证书SSL `div.van-swipe__track > div.van-swipe-item > a.trackSwipe > img`	imgi.xinnet.com/archive/images/2025/07/22/777.png
div#app-main > div.authWrap > div.row1 > img.title `div#app-main > div.authWrap > div.row1 > img.title`	imgi.xinnet.com/static/m-xinnet/images/index/auth.90bf500.png
中国人民财产保险 `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/71c9a2fe3ec2fe13b8816f4992e74751.png
大众点评 `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/227c2524e26bee85f78c0342ac02b5d6.png
51.com `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/ee0fed45695ac6251e49ef13ff0a6b5f.png
中国人民财产保险 `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/71c9a2fe3ec2fe13b8816f4992e74751.png
大众点评 `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/227c2524e26bee85f78c0342ac02b5d6.png
51.com `div.scroll-content > div.item > a > img`	imgi.xinnet.com/static/xinnet/images/ee0fed45695ac6251e49ef13ff0a6b5f.png
div.van-row > div.col1 > a.logo > img `div.van-row > div.col1 > a.logo > img`	imgi.xinnet.com/static/m-xinnet/images/common/logo2.6304462.png
div.footer > div.row2 > a > img.gaIcon `div.footer > div.row2 > a > img.gaIcon`	imgi.xinnet.com/static/m-xinnet/images/common/ga.8bea214.png

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

●Document request latency

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Avoid long main-thread tasks 8 long tasks found

●Avoid non-composited animations 2 animated elements found

●Network Requests

●Network Round Trip Times 290 ms

●Server Backend Latencies 760 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 380 ms

○INP breakdown

○User Timing marks and measures

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.

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#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`
div#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`
div#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`
div.footer > div.row2 > a > img.gaIcon `div.footer > div.row2 > a > img.gaIcon`

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#app-header > div.van-row > div.col1 > a.logo `div#app-header > div.van-row > div.col1 > a.logo`
div#app-header > div.van-row > div.col2 > a.account `div#app-header > div.van-row > div.col2 > a.account`

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`

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html `html`

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●Form elements have associated labels

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●Touch targets have sufficient size and spacing.

●The page contains a heading, skip link, or landmark region

●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

○`<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.

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

○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.

○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.

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 / Warning	Source
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.	analytics.oceanengine.com/api/v2/js/sdk line 1, col 32344
Unload event listeners are deprecated and will be removed.	s.union.360.cn/497875.js line 9, col 1470

●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 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

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
登录 `div#app-header > div.van-row > div.col2 > a.login`
注册有礼 `div#app-header > div.van-row > div.col2 > a.reg`

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#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`
div#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`
div#app-main > div.product > div.item > img.bgImg `div#app-main > div.product > div.item > img.bgImg`
div.footer > div.row2 > a > img.gaIcon `div.footer > div.row2 > a > img.gaIcon`

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

●Document has a valid `hreflang`

○robots.txt is valid

○Document has a valid `rel=canonical`