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· 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.

44

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
storage.360buyimg.com/retail-mall/lib/react-dom.production.js86400.0 s229.8 KiB
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...3600.0 s105.6 KiB
storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-17300.0 s79.7 KiB
storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js300.0 s55.4 KiB
storage.360buyimg.com/webcontainer/main/js-security-v3-rac.js?v=20260421300.0 s53.3 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....86400.0 s104.1 KiB
storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js300.0 s36.5 KiB
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js3600.0 s37.9 KiB
wl.jd.com/unify.min.js3600.0 s33.5 KiB
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...86400.0 s57.2 KiB
storage.360buyimg.com/jsresource/risk/handler.js300.0 s16.1 KiB
wl.jd.com/wl.js3600.0 s16.3 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js86400.0 s28.5 KiB
/??jdf/1.0.0/unit/global-footer/5.0.0/global-footer.css,j...3600.0 s3.5 KiB
misc.360buyimg.com/jdf/1.0.0/unit/ui-base/5.0.0/font/iconfont.woff3600.0 s3.2 KiB
/channel/gangao/2.0.0/global/1.0.0/widget/??,/service/ser...3600.0 s1.7 KiB
/channel/gangao/2.0.0/global/1.0.0/widget/??/right-info-c...3600.0 s1.3 KiB
/?appid=www-jd-com&body=%7B%22pin%22%3A%22%22%2C%22uuid%2...0.0 ms588 B
lapi.jd.com/locate?source=pchome&callback=jsonpAreaLocate&_=17767980915930.0 ms316 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:0.47510800000000003] map[node:map[boundingRect:map[bottom:1413 height:278 left:0 right:1350 top:1135 width:1350] lhId:page-13-DIV nodeLabel:多 品类齐全，轻松购物 快 多仓直发，极速配送 好 正品行货，精致服务 省 天天低价，畅选无忧 购物指南 购物流程 会员简介 常见问题 物流配送 运费说明 关… path:1,HTML,1,BODY,4,DIV selector:body > div#service-2017 snippet:<div id="service-2017" data-channel="gangao" data-version="2.0.0" data-tpl="service" data-path="service"> type:node] score:0.381574] map[node:map[boundingRect:map[bottom:1113 height:370 left:680 right:1270 top:743 width:590] lhId:page-20-DIV nodeLabel:div.floor > div.channel_cen > div.clr > div.c_right path:1,HTML,1,BODY,3,DIV,0,DIV,3,DIV,0,DIV,1,DIV,1,DIV selector:div.floor > div.channel_cen > div.clr > div.c_right snippet:<div class="c_right"> type:node] score:0.081415] map[node:map[boundingRect:map[bottom:923 height:180 left:680 right:970 top:743 width:290] lhId:page-21-LI nodeLabel:div.clr > div.c_right > ul.clr > li path:1,HTML,1,BODY,3,DIV,0,DIV,3,DIV,0,DIV,1,DIV,1,DIV,0,UL,0,LI selector:div.clr > div.c_right > ul.clr > li snippet:<li clstag="pageclick|keycount|ad_base_1600954919929|ad_2"> type:node] score:0.005646] map[node:map[boundingRect:map[bottom:632 height:96 left:1056 right:1296 top:536 width:240] lhId:page-17-DIV nodeLabel:国际支付 支付中心 path:1,HTML,1,BODY,3,DIV,0,DIV,1,DIV,0,DIV,2,DIV,0,DIV,7,DIV selector:div.clr > div.right_members > div.members_cen > div.pay_list snippet:<div class="pay_list"> type:node] score:0.003237] map[node:map[boundingRect:map[bottom:923 height:180 left:680 right:970 top:743 width:290] lhId:page-21-LI nodeLabel:div.clr > div.c_right > ul.clr > li path:1,HTML,1,BODY,3,DIV,0,DIV,3,DIV,0,DIV,1,DIV,1,DIV,0,UL,0,LI selector:div.clr > div.c_right > ul.clr > li snippet:<li clstag="pageclick|keycount|ad_base_1600954919929|ad_2"> type:node] score:0.002823]]

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
misc.360buyimg.com/jdf/1.0.0/unit/ui-base/5.0.0/font/iconfont.woff30 ms
storage.360buyimg.com/libres/pc_fonts/iconfont.woff5.0 ms

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
div.clr > div.c_left > a > img div.clr > div.c_left > a > img
/imagetools/jfs/t1/290454/4/15549/129962/685e5c03Fb2176c2...126.9 KiB109.5 KiB
div > div.slider_center > a > img div > div.slider_center > a > img
/imagetools/jfs/t1/320694/34/12153/111472/685e56d4Fe17a23...145.2 KiB108.9 KiB
ul.clr > li > a > img ul.clr > li > a > img
/imagetools/jfs/t1/291860/37/17465/81922/685e5d6bFb1e1941...80.0 KiB71.5 KiB
ul.clr > li > a > img ul.clr > li > a > img
/imagetools/jfs/t1/307217/30/12861/80732/685e5d6bFa5315d4...78.8 KiB70.3 KiB
div.clr > div.c_left > a > img div.clr > div.c_left > a > img
/imagetools/jfs/t1/313627/37/12783/50240/685e5c04Fed69c2a...49.1 KiB36.8 KiB
div.bottom_base_img > div > a > img div.bottom_base_img > div > a > img
/imagetools/jfs/t1/307918/10/12917/30385/685e5871Fdf96c0a...29.7 KiB23.9 KiB
ul.clr > li > a > img ul.clr > li > a > img
/imagetools/jfs/t1/314093/18/12972/20638/685e5d6bFfe05951...28.3 KiB21.2 KiB
div.bottom_base_img > div > a > img div.bottom_base_img > div > a > img
/imagetools/jfs/t1/299732/18/18951/25129/685e5871Fa4fb096...24.5 KiB18.8 KiB
ul.clr > li > a > img ul.clr > li > a > img
/imagetools/jfs/t1/310576/3/12742/16345/685e5d6bFfe4e749f...24.5 KiB18.4 KiB
国家知识产权公共服务网 div#footer-2017 > div.w > p.copyright_auth > a.copyright_auth_ico
/imagetools/jfs/t1/89057/27/24131/19491/621c3949E053e39b3...19.0 KiB15.1 KiB
div#header_wrap > div.header_center > div.logo > a div#header_wrap > div.header_center > div.logo > a
/img/jfs/t1/109080/21/58367/14698/675171baFb8b7a6d2/22ad5...14.4 KiB8.6 KiB
div.user_head > div.head > a > img div.user_head > div.head > a > img
/img/jfs/t1/111500/11/54566/8451/6735af47Ff4f93557/252cd1...8.3 KiB7.8 KiB
visa div.right > div.pay_img_cen > span.icon-item > img
/img/jfs/t1/240921/40/21483/4677/6728717eFb821ae79/436f20...4.6 KiB4.5 KiB

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-IMG
nodeLabel: div > div.slider_center > a > img
path: 1,HTML,1,BODY,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG
selector: div > div.slider_center > a > img
snippet: <img src="https://img14.360buyimg.com/imagetools/jfs/t1/320694/34/12153/111472/685e5…">

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
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js37.9 KiB134 ms
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...105.6 KiB201 ms
/channel/gangao/2.0.0/global/1.0.0/widget/??,/service/ser...1.7 KiB
/channel/gangao/2.0.0/global/1.0.0/widget/??/right-info-c...1.3 KiB67 ms
/??jdf/1.0.0/unit/global-footer/5.0.0/global-footer.css,j...3.5 KiB284 ms
storage.360buyimg.com/retail-mall/lib/react-dom.production.js229.8 KiB204 ms
storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js36.5 KiB
wl.jd.com/unify.min.js33.5 KiB295 ms
wl.jd.com/wl.js16.3 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....104.1 KiB
gias.jd.com/js/pc-tk.js?v=2024-06-20-1718.6 KiB275 ms
storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-1779.7 KiB163 ms
gias.jd.com/js/pc-tk.js18.6 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js28.5 KiB
storage.360buyimg.com/jsresource/risk/handler.js16.1 KiB
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...57.2 KiB375 ms
storage.360buyimg.com/retail-mall/lib/sha256-new.js?v=2024-06-20-173.4 KiB
storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/css/main.0402b2b4.css12.1 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: 1.2 s
URLTime Spent
jd.com/919 ms
www.jd.com/285 ms
global.jd.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.

ElementLayout shift score
多 品类齐全，轻松购物 快 多仓直发，极速配送 好 正品行货，精致服务 省 天天低价，畅选无忧 购物指南 购物流程 会员简介 常见问题 物流配送 运费说明 关… body > div#service-2017
0.382
div.floor > div.channel_cen > div.clr > div.c_right div.floor > div.channel_cen > div.clr > div.c_right
0.081
div.clr > div.c_right > ul.clr > li div.clr > div.c_right > ul.clr > li
0.006
国际支付 支付中心 div.clr > div.right_members > div.members_cen > div.pay_list
0.003
div.clr > div.c_right > ul.clr > li div.clr > div.c_right > ul.clr > li
0.003
你好，请登录  免费注册 div#shortcut-2024 > div.w > ul.fl > li#ttbar-login-2024
0.000
div.clr > div.c_right > ul.clr > li div.clr > div.c_right > ul.clr > li
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

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: 40 ms 124.0 KiB
URLTransfer SizeEst Savings
storage.360buyimg.com/retail-mall/lib/react-dom.production.js229.1 KiB109.9 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js27.8 KiB14.1 KiB

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: 80 ms 53.8 KiB
URLTransfer SizeEst Savings
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...56.6 KiB53.8 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: 280 ms 398.5 KiB
URLTransfer SizeEst Savings
storage.360buyimg.com/retail-mall/lib/react-dom.production.js229.1 KiB197.3 KiB
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...104.9 KiB56.5 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....103.1 KiB48.2 KiB
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js37.3 KiB26.2 KiB
storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/js/main.0402b2b4.js77.1 KiB25.2 KiB
storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js54.8 KiB23.6 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js27.8 KiB21.6 KiB

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

●Max Potential First Input Delay 90 ms
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Avoids enormous network payloads Total size was 1,839 KiB
●JavaScript execution time 0.5 s
●Minimizes main-thread work 1.1 s
●Avoid long main-thread tasks 3 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 210 ms
●Server Backend Latencies 290 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 30 ms
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
79

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
请登录 ul.fl > li#ttbar-login-2024 > a.link-login > span.style-red
ICP div.w > div.copyright_info > p > a
Copyright © 2004 - 2026 京东JD.com 版权所有 div.w > div.copyright_info > p > span.copyright_text
2026 div.copyright_info > p > span.copyright_text > em#copyright_year
(京)网械平台备字(2018)第00003号 div.w > div.copyright_info > p > span

These are opportunities to improve the legibility of your content.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.root61 html.root61

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.slider_center > a > img div > div.slider_center > a > img
div.bottom_base_img > div > a > img div.bottom_base_img > div > a > img
div.bottom_base_img > div > a > img div.bottom_base_img > div > a > img
div.user_head > div.head > a > img div.user_head > div.head > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
div.clr > div.c_left > a > img div.clr > div.c_left > a > img
div.clr > div.c_left > a > img div.clr > div.c_left > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img

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#header_wrap > div.header_center > div.logo > a div#header_wrap > div.header_center > div.logo > a
div.slick-slide > div > div.slider_center > a div.slick-slide > div > div.slider_center > a
div > div.bottom_base_img > div > a div > div.bottom_base_img > div > a
div > div.bottom_base_img > div > a div > div.bottom_base_img > div > a
div.user_cen > div.user_head > div.head > a div.user_cen > div.user_head > div.head > a
div.right_members > div.members_cen > div.user_btn > a.plus div.right_members > div.members_cen > div.user_btn > a.plus
div.channel_cen > div.clr > div.c_left > a div.channel_cen > div.clr > div.c_left > a
div.channel_cen > div.clr > div.c_left > a div.channel_cen > div.clr > div.c_left > a
div.c_right > ul.clr > li > a div.c_right > ul.clr > li > a
div.c_right > ul.clr > li > a div.c_right > ul.clr > li > a
div.c_right > ul.clr > li > a div.c_right > ul.clr > li > a
div.c_right > ul.clr > li > a div.c_right > ul.clr > li > a
div#footer-2017 > div.w > p.copyright_auth > a.copyright_auth_ico div#footer-2017 > div.w > p.copyright_auth > a.copyright_auth_ico

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

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
购物流程 div.wrap > dl.fore1 > dd > a
会员简介 div.wrap > dl.fore1 > dd > a
常见问题 div.wrap > dl.fore1 > dd > a
运费说明 div.wrap > dl.fore2 > dd > a
关税说明 div.wrap > dl.fore2 > dd > a
付款方式 div.wrap > dl.fore3 > dd > a
账户安全 div.wrap > dl.fore3 > dd > a
用户私隐协议 div.wrap > dl.fore3 > dd > a
全球售服务协议 div.wrap > dl.fore3 > dd > a
客服联络 div.wrap > dl.fore4 > dd > a
商务合作 div.wrap > dl.fore4 > dd > a

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.root61 html.root61

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
京东全球版 ul.fl > li#ttbar-mycity-2024 > div#areamini-2024 > a.ui-areamini-text
○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
●Buttons have an accessible name
●Form elements have associated labels
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
●Definition list items are wrapped in `<dl>` elements
●Document has a `<title>` element
●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
●No element has a `[tabindex]` value greater than 0
●Heading elements appear in a sequentially-descending order
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○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
○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
○The document does not use `<meta http-equiv="refresh">`
○`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○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.
○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.
81

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
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
gias.jd.com/js/pc-tk.js?v=2024-06-20-17
Fledge
gias.jd.com/js/pc-tk.js?v=2024-06-20-17
SharedStorage
storage.360buyimg.com/webcontainer/main/js-security-v3-rac.js?v=20260421 line 3, col 38436
●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 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
75

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.user_cen > div.user_info > span.logo > a
注册 div.user_cen > div.user_info > span.logo > a

If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #ContentError
1<!doctype html><html class="root61 jd_mac csstransitions cssanimations o2_webkit o2_chrome o2_latest o2_wide"><head><meta charset="utf-8"/><title>京东全球版-专业的综合网上购物商城</title><meta name="keywords" content="网上购物,家电,手机,计算机,服装,国际,海外,居家,母婴,美妆,个护,食品,京东,集运,全球"/><meta name="description" content="京东全球版-专业的综合网上购物商城，为您提供正品低价的购物选择、优质便捷的服务体验。商品来自全球数十万品牌商家，囊括家电、手机、计算机、服装、居家、母婴、美妆、个护、食品等丰富品类，满足各种购物需求。香港的用户支持自提、京东集运和国际卡支付，现时已覆盖香港、澳门、台湾、新加坡、马来西亚、美国、加拿大、澳大利亚、新西兰和日本等海外200多个国家和地区。"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><!--[if lte IE 8]>Syntax not understood
2 <script src="//misc.360buyimg.com/mtd/pc/index/home/ie6tip.min.js"></script>Syntax not understood
3 <![endif]--><link rel="icon" href="//storage.360buyimg.com/retail-mall/mall-common-component/favicon.ico" type="image/x-icon"/><link rel="stylesheet" href="//misc.360buyimg.com/??jdf/1.0.0/unit/global-footer/5.0.0/global-footer.css,jdf/1.0.0/unit/service/5.0.0/service.css,channel/lib/1.2.0/css/channel-base.css"/><link source="widget" rel="stylesheet" href="//misc.360buyimg.com/channel/gangao/2.0.0/global/1.0.0/widget/??/right-info-copy/right-info-copy.css,/service/service.css"/><script src="https://storage.360buyimg.com/jsresource/risk/handler.js"></script><script src="//storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-17"></script><script src="//storage.360buyimg.com/retail-mall/lib/sha256-new.js?v=2024-06-20-17"></script><script src="//gias.jd.com/js/pc-tk.js?v=2024-06-20-17"></script><script type="text/javascript">!function(e){e.channelData=e.channelData||{},e.channelData["floor-service"]={service1:"0101859",service2:"0101858",service3:"0101857",service4:"0101856",qrcode:"0301409"}}(window)</script><script>window.serverIdList={topReachedId:"0301921",categoryId:"0101741",bannerId:"05382124",bannerBottomId:"06784833",atmosphereId:"06817894",messageListId:"06784803",promoteId:"06813367",rankingId:"06813443",squareLeftId:"06813315",squareRightId:"06813381",recommendId:"12240015",userIcon:"06784702",search:"0101867",hot:"0101863"}</script><style>.topReached{width:100%;height:80px}.topReached a{display:block;margin:0 auto;width:1190px;height:80px}.topReached a img{width:1190px;height:80px}</style><script type="text/javascript" src="//misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js"></script><script type="text/javascript" src="//misc.360buyimg.com/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4.js,channel/lib/1.2.0/js/channel-base.js"></script><script>try{!function(){"use strict";!function(e){var r={pre_m:[],run:function(e){for(var n=arguments.length,t=new Array(n>1?n-1:0),o=1;o<n;o++)t[o-1]=arguments[o];r.pre_m.push({method:e,args:t})}};e.dra=r;var n=function(e,n){void 0===r[e]&&(r[e]=[]),r[e].push(n)};"addEventListener"in e&&"removeEventListener"in e&&(r.errorHandler=function(r){var t=(r=r||e.event).target||r.srcElement;t instanceof Element||t instanceof HTMLElement?n("s_err",r):n("err",r)},r.rejectionHandler=function(e){n("reject",e)},e.addEventListener("error",r.errorHandler,!0),e.addEventListener("unhandledrejection",r.rejectionHandler,!0)),"PerformanceLongTaskTiming"in e&&(r.entries=[],r.observer=new PerformanceObserver(function(e){r.entries=r.entries.concat(e.getEntries())}),r.observer.observe({entryTypes:["longtask"]}));var t=e.document.createElement("script");t.src="https://storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js",t.crossOrigin="anonymous",t.setAttribute("globalName".toLowerCase(),"dra"),t.setAttribute("preCollect".toLowerCase(),"__dra_PreCollectedData__"),e.document.getElementsByTagName("head")[0].appendChild(t)}(window)}()}catch(e){console.error("烛龙监控自执行方法错误：",e)}</script><script>try{window.dra.run("init",{aid:"3324878abf9c418f007f69b1b9608479"}),window.dra.run("start")}catch(r){console.error("烛龙监控初始化错误：",r)}</script><link href="//storage.360buyimg.com/retail-mall/mall-common-component/pre/0.0.7/css/shortcut.573f5b98.css" rel="stylesheet"/><script>window.pageConfig={},window.commonAppId="www-jd-com",window.pageConfig.shortcutMobileData=[{title:"手机京东",desc:"新人专享大礼包",img:"jfs/t1/84498/39/9486/28110/5d72189bEee8e7110/773e5a267ab3786c.png",url:"https://app.jd.com/",devices:[{type:"iphone",src:"https://itunes.apple.com/cn/app/id414245413"},{type:"android",src:"https://storage.jd.com/jdmobile/JDMALL-PC2.apk"},{type:"ipad",src:"https://itunes.apple.com/cn/app/jing-dong-hd/id434374726"}]},{title:"关注京东微信",desc:"微信扫一扫关注京东服务号订阅更多促销优惠福利",img:"jfs/t1/74865/18/9334/11346/5d7218c7Ecccb8ff0/34095b63503fc108.jpg",url:"",devices:[]},{title:"京东金融客户端",desc:"新人专享大礼包",img:"jfs/t1/77329/31/9360/15408/5d7218f7Efb5248cb/ac1de226dafd0455.jpg",url:"https://m.jr.jd.com/integrate/download/html/pc.html",devices:[{type:"iphone",src:"https://itunes.apple.com/cn/app/jing-dong-jin-rong-hui-li/id895682747?mt=8"},{type:"android",src:"http://211.151.9.66/downapp/jrapp_jr188.apk"}]},{title:"京东健康客户端",desc:"",img:"jfs/t1/171539/38/9328/28300/60404decE2ee00c60/297e613c999daada.png",url:"https://www.jd.com",devices:[{type:"iphone",src:"https://hlc.m.jd.com/download/?downloadSource=jdh_JDcom"},{type:"android",src:"https://hlc.m.jd.com/download/?downloadSource=jdh_JDcom"}]},{title:"关注京东小程序",desc:"新人0.1元购",img:"jfs/t1/154335/38/20291/19657/60404de0Ece970bda/917415e2e3b10628.jpg",url:"",devices:[]}]</script><script>try{window.PSign=new window.ParamsSign({appId:"e56d4",preRequest:!1,onSign:e=>{if(0!=e.code)try{window.dra&&window.dra.sendCustomEvent&&window.dra.sendCustomEvent({name:"overseas_pc",metrics:{error_code:"751",error_type_txt:"接口加密失败onSign非0"},context:{error_code:e.code}})}catch(e){console.log(e)}},onRequestTokenRemotely:e=>{if(200!=e.code)try{window.dra&&window.dra.sendCustomEvent&&window.dra.sendCustomEvent({name:"overseas_pc",metrics:{error_code:"751",error_type_txt:"接口加密失败onRequestTokenRemotely"},context:{error_msg:e&&e.message?e.message:"接口加密失败"}})}catch(e){console.log(e)}}})}catch(e){console.log("ParamsSign",e)}</script><script type="text/javascript" src="//storage.360buyimg.com/retail-mall/lib/react.production.js"></script><script type="text/javascript" src="//storage.360buyimg.com/retail-mall/lib/react-dom.production.js"></script><script defer="defer" src="https://storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/js/main.0402b2b4.js"></script><link href="https://storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/css/main.0402b2b4.css" rel="stylesheet"></head><body><noscript>请使用高版本浏览器访问效果更好，推荐谷歌浏览器</noscript><div id="topBanner"></div><div id="shortcut-2024"></div><div id="root"></div><div id="service-2017" data-channel="gangao" data-version="2.0.0" data-tpl="service" data-path="service"><div class="w"><ol class="slogen"><li class="item fore1"><i>多</i>品类齐全，轻松购物</li><li class="item fore2"><i>快</i>多仓直发，极速配送</li><li class="item fore3"><i>好</i>正品行货，精致服务</li><li class="item fore4"><i>省</i>天天低价，畅选无忧</li></ol></div><div class="jd-help"><div class="w clearfix"><div class="p-logo"></div><div class="wrap"><dl class="fore1"><dt>购物指南</dt></dl><dl class="fore2"><dt>物流配送</dt></dl><dl class="fore3"><dt>帮助中心</dt></dl><dl class="fore4"><dt>联系我们</dt></dl><dl class="fore5 focus"><dt>关注我们</dt></dl><span class="clr"></span></div></div></div></div><div id="footer-2017"><div class="w"><div class="copyright_links"><p><a href="//about.jd.com" target="_blank">关于我们</a><span class="copyright_split">|</span> <a href="//about.jd.com/contact/" target="_blank">联系我们</a><span class="copyright_split">|</span> <a href="//help.jd.com/user/custom.html" target="_blank">联系客服</a><span class="copyright_split">|</span> <a href="//vc.jd.com/cooperation.html" target="_blank">合作招商</a><span class="copyright_split">|</span> <a href="//helpcenter.jd.com/venderportal/index.html" target="_blank">商家帮助</a><span class="copyright_split">|</span> <a href="//jzt.jd.com" target="_blank">营销中心</a><span class="copyright_split">|</span> <a href="//app.jd.com/" target="_blank">手机京东</a><span class="copyright_split">|</span> <a href="//club.jd.com/links.aspx" target="_blank">友情链接</a><span class="copyright_split">|</span> <a href="//union.jd.com/index" target="_blank">销售联盟</a><span class="copyright_split">|</span> <a href="//pro.jd.com/mall/active/3WA2zN8wkwc9fL9TxAJXHh5Nj79u/index.html/" target="_blank">京东社区</a><span class="copyright_split">|</span> <a 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class="mod_business_license">营业执照</a> <span class="copyright_split">|</span> <a href="//h5.m.jd.com/pc/dev/3YxBvN6m5TsRyVCvDSeEh7awmLB4/index.html" target="_blank" rel="noopener noreferrer">增值电信业务经营许可证</a></p><p><span>京东旗下网站：</span> <a href="https://www.jdpay.com/" target="_blank">京东钱包</a><span class="copyright_split">|</span> <a href="//www.jcloud.com" target="_blank">京东云</a></p></div><p class="copyright_auth"><a id="urlknet" class="copyright_auth_ico copyright_auth_ico_2" onclick='CNNIC_change("urlknet")' oncontextmenu="return!1" href="https://ss.knet.cn/verifyseal.dll?sn=2008070300100000031&ct=df&pa=294005" target="_blank">可信网站信用评估</a> <a class="copyright_auth_ico copyright_auth_ico_3" href="//cyberpolice.mps.gov.cn/" target="_blank"></a> <a class="copyright_auth_ico copyright_auth_ico_4" href="https://search.szfw.org/cert/l/CX20120111001803001836" target="_blank">诚信网站</a> <a class="copyright_auth_ico copyright_auth_ico_5" href="//www.12377.cn" target="_blank">中国互联网举报中心</a> <a class="copyright_auth_ico copyright_auth_ico_6" href="//www.12377.cn/node_548446.htm" target="_blank">网络举报APP下载</a> <a class="copyright_auth_ico copyright_auth_ico_7" href="//ggfw.cnipa.gov.cn:8010/PatentCMS_Center/" target="_blank" rel="noopener noreferrer" style="background-image:url('//img12.360buyimg.com/imagetools/jfs/t1/89057/27/24131/19491/621c3949E053e39b3/9e2e3ec54268ac9b.png');overflow:hidden;display:inline-block;width:103px;height:32px;line-height:1000px;background-size:cover">国家知识产权公共服务网</a></p></div></div><script src="//wl.jd.com/unify.min.js"></script><script src="https://storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js"></script><script src="https://storage.360buyimg.com/jsresource/risk/handler.js"></script><script>var bp_bizid="JDPC-OVERSEA"</script><script src="//gias.jd.com/js/pc-tk.js"></script><script type="text/javascript" src="//misc.360buyimg.com/channel/gangao/2.0.0/global/1.0.0/widget/??,/service/service.js"></script><script type="text/javascript" src="//storage.360buyimg.com/retail-mall/mall-common-component/pre/0.0.7/js/shortcut.573f5b98.js"></script><script type="text/JavaScript">function CNNIC_change(e){var n=document.getElementById(e).href,t=n.substring(0,n.length-6);t+=CNNIC_RndNum(6),document.getElementById(e).href=t}function CNNIC_RndNum(e){for(var n="",t=0;t<e;t++)n+=Math.floor(10*Math.random());return n}!function(){var e=new Date;document.getElementById("copyright_year").innerHTML=e.getFullYear()}()</script><script type="text/javascript">try{window.onload=i=>{if($(".pay_list li.icon-item:nth(2)").length){var t=$(".pay_list li.icon-item:nth(2)");t.next().after(t)}$(".areamini_inter_list .areamini_inter_lk").length&&$(".areamini_inter_list .areamini_inter_lk").eq(0).attr("data-ver-href","//www.jd.com")}}catch(i){console.log(i)}</script><script src="//wl.jd.com/wl.js"></script><script>try{var pageid="JD_QQS_HW";window.jaq=[],jaq.push(["autoLogPv",!1]),window.JA.tracker.bloading(pageid,JSON.stringify({view_type:1})),document.addEventListener("visibilitychange",function(){"visible"===document.visibilityState&&window.JA.tracker.bloading(pageid,JSON.stringify({view_type:2}))})}catch(i){console.log("浏览上报异常",i)}</script></body></html>Unknown directive

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.slider_center > a > img div > div.slider_center > a > img
div.bottom_base_img > div > a > img div.bottom_base_img > div > a > img
div.bottom_base_img > div > a > img div.bottom_base_img > div > a > img
div.user_head > div.head > a > img div.user_head > div.head > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
div.clr > div.c_left > a > img div.clr > div.c_left > a > img
div.clr > div.c_left > a > img div.clr > div.c_left > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > img
ul.clr > li > a > img ul.clr > li > a > 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
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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