D — https://jd.com | BeaverCheck Audit

Site Health

Score: 64 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Major barriers for users with disabilities — up to 15% of your audience.

Solid SEO basics — a few optimizations could boost rankings.

Good server performance with room for optimization.

Several regulatory requirements are not yet met.

Missing metadata means poor previews on social media and search.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Cart Functionality · 356 peers

You 64

Avg 72

-8 below average

0 50 100

See full Cart Functionality benchmark →

Babel · 59 peers

You 64

Avg 71

-7 below average

0 50 100

See full Babel benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

Page weighs 10.7 MB (8.5 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

1 image-in-link without alt text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Alt Text Quality

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Embed this badge

Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fjd.com)](https://beavercheck.com/results/bdff639d-d4b9-43ec-9564-f6be465aa648)

HTML

<a href="https://beavercheck.com/results/bdff639d-d4b9-43ec-9564-f6be465aa648"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fjd.com" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fjd.com

This badge auto-updates with your latest scan result.

What fixing these means

Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 25.2s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.

Your LCP is 25.2s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

1 accessibility issue excludes users who rely on assistive technology.

Could reach Estimate based on resolving critical issues

Conversion Barriers

5 critical 6 warning

11 barrier(s) likely increasing bounce by ~41%.

Speed (2)

Page takes 25.2s to load

+12% bounce

Users abandon at ~3s — you're 22.7s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 1.3s

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (2)

Severe layout shift during page load

+6% bounce

Users mis-click when content jumps — converting intent into frustration

Fix: Reserve space for images, ads, and embeds with explicit width/height

No viewport meta tag

+15% bounce

Mobile browsers render at desktop width and shrink — text unreadable, tap targets miniature

Fix: Add <meta name="viewport" content="width=device-width, initial-scale=1">

Content (3)

No Open Graph tags

+2% bounce

Links shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop

Fix: Add og:title, og:description, og:image, og:url to the page head

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Thin content

+3% bounce

Under 300 words — visitors bounce looking for substance, search engines rank competitors first

Fix: Add a substantive FAQ, product detail, or case-study section

Navigation (2)

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

5 broken link(s) on the page

+5% bounce

Clicks land on 404s — trust drops and the session often ends

Fix: Fix or remove the broken destinations surfaced on the Content tab

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

¥1,750 investment → ¥15/month returns + CNY 50,000,000 risk avoided

Payback period: > 2 years First-year ROI: -89%

Investment

¥1,750

5h · 5 findings

Monthly returns

¥15 /mo

~¥184 / year

Bandwidth savings ¥15

Regulatory risk avoided

CNY 50,000,000

if kept compliant

PIPL CNY 50,000,000

¥525 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

¥1,750

5.0 developer hours at ¥350/hr

Based on China rates (¥350/hr)

Quick wins

¥525 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

¥ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

¥4,166,682 / month at risk

~¥50,000,184 / year if left unfixed

Compliance Risk

¥50,000,000

PIPL

No privacy policy link detected
PIPL: CNY 100,000 – CNY 50,000,000

Bandwidth Waste

¥15 /mo

26893.5 MB/mo × 0.571 CNY/GB

Optimize transfer: save ~2.7 MB per page load
Saves ¥15/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

7.67 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

25.17 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.29 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.449

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

8.35 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

25.21 s

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	86400.0 s	229.8 KiB
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...	3600.0 s	105.6 KiB
storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-17	300.0 s	79.7 KiB
storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js	300.0 s	55.4 KiB
storage.360buyimg.com/webcontainer/main/js-security-v3-rac.js?v=20260421	300.0 s	53.3 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....	86400.0 s	104.1 KiB
storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js	300.0 s	36.5 KiB
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js	3600.0 s	37.9 KiB
wl.jd.com/unify.min.js	3600.0 s	33.5 KiB
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...	86400.0 s	57.2 KiB
storage.360buyimg.com/jsresource/risk/handler.js	300.0 s	16.1 KiB
wl.jd.com/wl.js	3600.0 s	16.3 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	86400.0 s	28.5 KiB
/??jdf/1.0.0/unit/global-footer/5.0.0/global-footer.css,j...	3600.0 s	3.5 KiB
misc.360buyimg.com/jdf/1.0.0/unit/ui-base/5.0.0/font/iconfont.woff	3600.0 s	3.2 KiB
/channel/gangao/2.0.0/global/1.0.0/widget/??,/service/ser...	3600.0 s	1.7 KiB
/channel/gangao/2.0.0/global/1.0.0/widget/??/right-info-c...	3600.0 s	1.3 KiB
/?appid=www-jd-com&body=%7B%22pin%22%3A%22%22%2C%22uuid%2...	0.0 ms	584 B
lapi.jd.com/locate?source=pchome&callback=jsonpAreaLocate&_=1776798069983	0.0 ms	316 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:0.44863899999999995] map[node:map[boundingRect:map[bottom:4377 height:278 left:0 right:1296 top:4099 width:1296] lhId:page-52-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:0.300457] map[node:map[boundingRect:map[bottom:4377 height:278 left:0 right:1296 top:4099 width:1296] lhId:page-52-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:0.14448] map[node:map[boundingRect:map[bottom:923 height:180 left:653 right:943 top:743 width:290] lhId:page-60-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:0.001501] map[node:map[boundingRect:map[bottom:923 height:180 left:653 right:943 top:743 width:290] lhId:page-60-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:0.00101] map[node:map[boundingRect:map[bottom:632 height:96 left:1029 right:1269 top:536 width:240] lhId:page-54-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:0.000638]]

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.

URL	Est Savings
misc.360buyimg.com/jdf/1.0.0/unit/ui-base/5.0.0/font/iconfont.woff	30 ms
storage.360buyimg.com/libres/pc_fonts/iconfont.woff	5.0 ms
/retail-mall/overseas_pc/pre/0.0.22/images/slick.29518378...	5.0 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.

	URL	Resource Size	Est Savings
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/241285/31/19004/260960/670cb7e4Fce234eea/18...	991.4 KiB	973.4 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/225203/12/25469/918181/66e28fa5Fecf74cbe/21...	896.7 KiB	878.7 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/217996/34/45012/102402/670c9743F2df9424c/39...	446.3 KiB	428.4 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/156516/10/48960/81086/670c9745F11a922ee/d69...	431.1 KiB	413.1 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/148039/34/47773/78242/670a77c1F692c6bad/701...	413.3 KiB	395.3 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/125893/4/47415/145801/670a7674F1cfbeed5/fa6...	163.2 KiB	155.2 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/156802/13/48081/150585/670b6596Fd0443268/1b...	144.1 KiB	126.1 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/240829/4/11453/170277/6673f5f5Fc6f348f7/f3f...	143.0 KiB	125.0 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/94721/32/50853/143352/6709c82cF0389db2f/bc4...	138.9 KiB	120.9 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/171811/3/35871/189096/64925d4aF82bb68c0/139...	138.1 KiB	120.1 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/173517/10/49131/138498/670d5f5bF94f5cfd3/31...	135.8 KiB	117.8 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/109914/38/54625/133549/670d078aF47bb2043/ab...	127.0 KiB	109.0 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/140197/12/47854/160722/6709cf9eF334e3cb6/1f...	123.1 KiB	105.1 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/176701/21/48938/134057/670c92d0Fc7262b46/e9...	121.0 KiB	103.0 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/160792/38/48533/130236/670a42b6F8e58ac86/db...	116.7 KiB	98.7 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/179572/28/50086/130639/670c802eFb610340a/6f...	115.9 KiB	97.9 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/126408/40/49233/161528/670dd56aFffc79628/ba...	115.2 KiB	97.2 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/199295/20/46322/112790/66f4b8b5Fb9251f18/44...	115.0 KiB	97.1 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/221315/5/43948/103528/670d1e14F95785424/449...	114.9 KiB	97.0 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/230236/14/23496/135663/66a8da1cF83e914d2/1b...	111.3 KiB	93.3 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/114141/35/35808/155029/6447318cF8df0728e/28...	111.1 KiB	93.1 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/241830/1/20088/135613/670cba76F24497394/44f...	108.5 KiB	90.5 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/162969/33/49017/109512/670c8e4bF80b7079c/79...	107.9 KiB	89.9 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/206670/1/44201/103234/670cf0c9Fd5743ab4/69f...	104.4 KiB	86.4 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/197645/31/46543/124874/6709ce70F8d557ad8/52...	101.5 KiB	84.0 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/249905/21/20804/121082/670c9b4eFfdbeab9d/31...	101.3 KiB	83.8 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/188973/34/49270/75368/670d0d05F8ae42bff/f60...	95.5 KiB	79.0 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/194232/14/49087/128308/670d3385F96807be2/d4...	91.2 KiB	75.4 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/178632/19/49736/115914/670d4042F3c73418b/1f...	89.4 KiB	73.9 KiB
div.clr > div.c_left > a > img `div.clr > div.c_left > a > img`	/babel/jfs/t1/246891/14/24535/25194/673c5b17F3afcc9c7/462...	126.9 KiB	73.4 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/102069/28/52852/73663/670d376aFdda6807a/74c...	87.5 KiB	72.4 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/233367/5/24757/99074/66fa60aaFdf526f12/3f68...	86.7 KiB	71.7 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/239974/19/19921/88975/6708ddbfF9e57f41f/b2a...	84.6 KiB	69.9 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/161306/1/49267/72735/670cefefF289566fe/e887...	82.4 KiB	68.2 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/103067/26/51119/53064/670cfc6bF303a7dbe/2b7...	75.2 KiB	62.2 KiB
div > div.slider_center > a > img `div > div.slider_center > a > img`	/babel/s1420x760_jfs/t1/420475/40/6549/157822/69e0a385F01...	194.0 KiB	59.6 KiB
ul.clr > li > a > img `ul.clr > li > a > img`	/babel/jfs/t1/151963/23/31996/81922/642e7aa0F02fe1494/f00...	80.0 KiB	54.0 KiB
ul.clr > li > a > img `ul.clr > li > a > img`	/babel/jfs/t1/276368/7/9911/24220/67e25c9dF50d4a46b/c7b21...	78.8 KiB	52.8 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/167288/31/34061/57213/6437752fFce9d2070/d78...	52.1 KiB	43.1 KiB
div > div.slider_center > a > img `div > div.slider_center > a > img`	/babel/s1420x760_jfs/t1/328375/15/20908/111793/68ca12d2F3...	137.8 KiB	32.3 KiB
div > div.slider_center > a > img `div > div.slider_center > a > img`	/babel/s1420x760_jfs/t1/231046/8/38948/112913/67b6fbc2Fc9...	135.7 KiB	31.8 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/112002/16/6362/86427/5eb926e2E5a8a1d76/d352...	37.5 KiB	31.1 KiB
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`	/babel/jfs/t1/178507/11/5097/46918/60a5b9deEb0a13f9d/5245...	35.0 KiB	28.9 KiB
div.bottom_base_img > div > a > img `div.bottom_base_img > div > a > img`	/babel/s711x199_jfs/t1/266542/13/1889/30385/6768f589Ff198...	34.4 KiB	16.7 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 KiB	15.1 KiB
div.clr > div.c_left > a > img `div.clr > div.c_left > a > img`	/babel/jfs/t1/194527/14/53263/50240/673c5b22F276e7a77/d1e...	49.1 KiB	11.5 KiB
div.bottom_base_img > div > a > img `div.bottom_base_img > div > a > img`	/babel/s711x199_jfs/t1/266560/27/1859/25129/6768f594Feaee...	27.7 KiB	10.0 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 KiB	8.6 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 KiB	7.0 KiB
visa `div.right > div.pay_img_cen > span.icon-item > img`	/img/jfs/t1/240921/40/21483/4677/6728717eFb821ae79/436f20...	4.6 KiB	4.3 KiB
ul.clr > li > a > img `ul.clr > li > a > img`	/babel/s580x360_jfs/t1/185848/10/28507/20219/63b4045dFdaf...	17.2 KiB	4.0 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:732.436 label:Time to first byte subpart:timeToFirstByte] map[duration:2282.753 label:Resource load delay subpart:resourceLoadDelay] map[duration:436.752 label:Resource load duration subpart:resourceLoadDuration] map[duration:40.69 label:Element render delay subpart:elementRenderDelay]]

lhId: page-51-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,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,A,0,IMG

selector: div > div.slider_center > a > img

snippet: <img src="//m.360buyimg.com/babel/s1420x760_jfs/t1/231046/8/38948/112913/67b6fbc2Fc9…">

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-51-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,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,A,0,IMG

selector: div > div.slider_center > a > img

snippet: <img src="//m.360buyimg.com/babel/s1420x760_jfs/t1/231046/8/38948/112913/67b6fbc2Fc9…">

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.

URL	Transfer Size	Duration
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js	37.9 KiB	706 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 KiB	177 ms
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...	105.6 KiB	1.2 s
/??jdf/1.0.0/unit/global-footer/5.0.0/global-footer.css,j...	3.5 KiB	833 ms
wl.jd.com/wl.js	16.3 KiB
wl.jd.com/unify.min.js	33.5 KiB	1.4 s
gias.jd.com/js/pc-tk.js?v=2024-06-20-17	18.6 KiB	1.1 s
gias.jd.com/js/pc-tk.js	18.6 KiB
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	229.8 KiB	1.2 s
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....	104.1 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	28.5 KiB	302 ms
storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js	36.5 KiB	302 ms
storage.360buyimg.com/jsresource/risk/handler.js	16.1 KiB	302 ms
storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-17	79.7 KiB	905 ms
storage.360buyimg.com/retail-mall/lib/sha256-new.js?v=2024-06-20-17	3.4 KiB
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...	57.2 KiB	1.7 s
storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/css/main.0402b2b4.css	12.1 KiB

Tap interactions may be delayed by up to 300 ms if the viewport is not optimized for mobile.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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

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: 2.2 s

URL	Time Spent
jd.com/	1.3 s
www.jd.com/	828 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.

Element	Layout 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`	0.300
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`	0.144
div.clr > div.c_right > ul.clr > li `div.clr > div.c_right > ul.clr > li`	0.002
div.clr > div.c_right > ul.clr > li `div.clr > div.c_right > ul.clr > li`	0.001
国际支付支付中心 `div.clr > div.right_members > div.members_cen > div.pay_list`	0.001
div.clr > div.c_right > ul.clr > li `div.clr > div.c_right > ul.clr > li`	0.000
你好，请登录免费注册 `div#shortcut-2024 > div.w > ul.fl > li#ttbar-login-2024`	0.000

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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: 600 ms 124.0 KiB

URL	Transfer Size	Est Savings
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	229.1 KiB	109.9 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	27.8 KiB	14.1 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: 450 ms 50.7 KiB

URL	Transfer Size	Est Savings
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...	56.6 KiB	50.7 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 2.5 s 396.4 KiB

URL	Transfer Size	Est Savings
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	229.1 KiB	197.3 KiB
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...	104.9 KiB	56.5 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....	103.1 KiB	48.1 KiB
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js	37.3 KiB	26.2 KiB
storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js	54.8 KiB	23.6 KiB
storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/js/main.0402b2b4.js	77.1 KiB	23.1 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	27.8 KiB	21.6 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
storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/js/main.0402b2b4.js	1.0 s	822 ms	24 ms
storage.360buyimg.com/webcontainer/main/js-security-v3-rac.js?v=20260421	834 ms	813 ms	15 ms
global.jd.com/	707 ms	24 ms	5.7 ms
Unattributable	625 ms	5.2 ms	0.0 ms
gias.jd.com/js/pc-tk.js?v=2024-06-20-17	578 ms	567 ms	4.2 ms
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...	249 ms	166 ms	12 ms
storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js	248 ms	192 ms	19 ms
storage.360buyimg.com/jsresource/risk/handler.js	219 ms	126 ms	17 ms
storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js	203 ms	153 ms	8.9 ms
gias.jd.com/js/pc-tk.js	183 ms	173 ms	4.3 ms
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	172 ms	31 ms	141 ms
wl.jd.com/unify.min.js	98 ms	84 ms	13 ms
storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-17	88 ms	70 ms	18 ms
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....	88 ms	60 ms	28 ms
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js	65 ms	42 ms	11 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	3.5 s
Other	1.0 s
Style & Layout	480 ms
Script Parsing & Compilation	345 ms
Rendering	136 ms
Garbage Collection	53 ms
Parse HTML & CSS	45 ms

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
/babel/jfs/t1/241285/31/19004/260960/670cb7e4Fce234eea/18...	993.1 KiB
/babel/jfs/t1/225203/12/25469/918181/66e28fa5Fecf74cbe/21...	898.2 KiB
/babel/jfs/t1/217996/34/45012/102402/670c9743F2df9424c/39...	447.4 KiB
/babel/jfs/t1/156516/10/48960/81086/670c9745F11a922ee/d69...	432.1 KiB
/babel/jfs/t1/148039/34/47773/78242/670a77c1F692c6bad/701...	414.3 KiB
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	229.8 KiB
/babel/s1420x760_jfs/t1/420475/40/6549/157822/69e0a385F01...	194.8 KiB
/babel/jfs/t1/125893/4/47415/145801/670a7674F1cfbeed5/fa6...	164.0 KiB
/babel/jfs/t1/156802/13/48081/150585/670b6596Fd0443268/1b...	144.8 KiB
/babel/jfs/t1/240829/4/11453/170277/6673f5f5Fc6f348f7/f3f...	143.7 KiB

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

●Optimize DOM size

●Forced reflow

●Modern HTTP

●Minify CSS

●Avoid long main-thread tasks 20 long tasks found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 220 ms

●Server Backend Latencies 300 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

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.

ARIA

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.slick-slider > div.slick-list > div.slick-track > div.slick-slide `div.slick-slider > div.slick-list > div.slick-track > div.slick-slide`
div.slick-slider > div.slick-list > div.slick-track > div.slick-slide `div.slick-slider > div.slick-list > div.slick-track > div.slick-slide`
div.slick-slider > div.slick-list > div.slick-track > div.slick-slide `div.slick-slider > div.slick-list > div.slick-track > div.slick-slide`
div.slick-slider > div.slick-list > div.slick-track > div.slick-slide `div.slick-slider > div.slick-list > div.slick-track > div.slick-slide`
div.slick-slider > div.slick-list > div.slick-track > div.slick-slide `div.slick-slider > div.slick-list > div.slick-track > div.slick-slide`
div.slick-slider > div.slick-list > div.slick-track > div.slick-slide `div.slick-slider > div.slick-list > div.slick-track > div.slick-slide`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > 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 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.

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Displayed size	Actual size	Expected size
微信 `div.right > div.pay_img_cen > span.icon-item > img`	/img/jfs/t1/176962/34/50798/967/67287356F6ab1e86f/28bcc23...	23 x 16	23 x 16	35 x 24

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
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

●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

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 #	Content	Error
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`
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class="copyright_split">\|</span><span>新出发京零字第大120007号</span></p><p><span>互联网出版许可证编号新出网证(京)字150号</span><span class="copyright_split">\|</span> <a href="//pro.jd.com/mall/active/3bVDLXHdwVmdQksGF8TtS7ocq1NY/index.html" target="_blank">出版物经营许可证</a><span class="copyright_split">\|</span> <a href="//img10.360buyimg.com/ling/jfs/t1/164806/19/5070/567736/6017d6d6Eab06ec9c/d8ca6e029f495447.jpg" target="_blank">网络文化经营许可证京网文〔2020〕6112-1201号</a><span class="copyright_split">\|</span><span>违法和不良信息举报电话：4006561155</span></p><p><span class="copyright_text">Copyright © 2004 - <em id="copyright_year">2018</em> 京东JD.com 版权所有</span><span class="copyright_split">\|</span><span>消费者维权热线：4006067733</span> <a href="//pro.jd.com/mall/active/38PitHBfR7ZopNHRSHnuuWR5AMDL/index.html" target="_blank" class="copyright_license">经营证照</a> <span class="copyright_split">\|</span> <span>(京)网械平台备字(2018)第00003号</span> <span class="copyright_split">\|</span> <a href="//h5.m.jd.com/babelDiy/Zeus/ARcYnJ8coUdUecn6UQAN6TDaVmH/index.html" target="_blank" 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`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > img`
div.recommend_list > div.center > div.item > img `div.recommend_list > div.center > div.item > 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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.34 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.17 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

29 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.475

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.56 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

4.19 s

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.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

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
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	86400.0 s	229.8 KiB
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...	3600.0 s	105.6 KiB
storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-17	300.0 s	79.7 KiB
storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js	300.0 s	55.4 KiB
storage.360buyimg.com/webcontainer/main/js-security-v3-rac.js?v=20260421	300.0 s	53.3 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....	86400.0 s	104.1 KiB
storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js	300.0 s	36.5 KiB
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js	3600.0 s	37.9 KiB
wl.jd.com/unify.min.js	3600.0 s	33.5 KiB
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...	86400.0 s	57.2 KiB
storage.360buyimg.com/jsresource/risk/handler.js	300.0 s	16.1 KiB
wl.jd.com/wl.js	3600.0 s	16.3 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	86400.0 s	28.5 KiB
/??jdf/1.0.0/unit/global-footer/5.0.0/global-footer.css,j...	3600.0 s	3.5 KiB
misc.360buyimg.com/jdf/1.0.0/unit/ui-base/5.0.0/font/iconfont.woff	3600.0 s	3.2 KiB
/channel/gangao/2.0.0/global/1.0.0/widget/??,/service/ser...	3600.0 s	1.7 KiB
/channel/gangao/2.0.0/global/1.0.0/widget/??/right-info-c...	3600.0 s	1.3 KiB
/?appid=www-jd-com&body=%7B%22pin%22%3A%22%22%2C%22uuid%2...	0.0 ms	588 B
lapi.jd.com/locate?source=pchome&callback=jsonpAreaLocate&_=1776798091593	0.0 ms	316 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.

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.

URL	Est Savings
misc.360buyimg.com/jdf/1.0.0/unit/ui-base/5.0.0/font/iconfont.woff	30 ms
storage.360buyimg.com/libres/pc_fonts/iconfont.woff	5.0 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.

	URL	Resource Size	Est 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 KiB	109.5 KiB
div > div.slider_center > a > img `div > div.slider_center > a > img`	/imagetools/jfs/t1/320694/34/12153/111472/685e56d4Fe17a23...	145.2 KiB	108.9 KiB
ul.clr > li > a > img `ul.clr > li > a > img`	/imagetools/jfs/t1/291860/37/17465/81922/685e5d6bFb1e1941...	80.0 KiB	71.5 KiB
ul.clr > li > a > img `ul.clr > li > a > img`	/imagetools/jfs/t1/307217/30/12861/80732/685e5d6bFa5315d4...	78.8 KiB	70.3 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 KiB	36.8 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 KiB	23.9 KiB
ul.clr > li > a > img `ul.clr > li > a > img`	/imagetools/jfs/t1/314093/18/12972/20638/685e5d6bFfe05951...	28.3 KiB	21.2 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 KiB	18.8 KiB
ul.clr > li > a > img `ul.clr > li > a > img`	/imagetools/jfs/t1/310576/3/12742/16345/685e5d6bFfe4e749f...	24.5 KiB	18.4 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 KiB	15.1 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 KiB	8.6 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 KiB	7.8 KiB
visa `div.right > div.pay_img_cen > span.icon-item > img`	/img/jfs/t1/240921/40/21483/4677/6728717eFb821ae79/436f20...	4.6 KiB	4.5 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.

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.

URL	Transfer Size	Duration
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js	37.9 KiB	134 ms
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...	105.6 KiB	201 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 KiB	67 ms
/??jdf/1.0.0/unit/global-footer/5.0.0/global-footer.css,j...	3.5 KiB	284 ms
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	229.8 KiB	204 ms
storage.360buyimg.com/bjd-utils-sdk/library/polyfill.min.js	36.5 KiB
wl.jd.com/unify.min.js	33.5 KiB	295 ms
wl.jd.com/wl.js	16.3 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....	104.1 KiB
gias.jd.com/js/pc-tk.js?v=2024-06-20-17	18.6 KiB	275 ms
storage.360buyimg.com/webcontainer/js_security_v3_0.1.6.js?v=2024-06-20-17	79.7 KiB	163 ms
gias.jd.com/js/pc-tk.js	18.6 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	28.5 KiB
storage.360buyimg.com/jsresource/risk/handler.js	16.1 KiB
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...	57.2 KiB	375 ms
storage.360buyimg.com/retail-mall/lib/sha256-new.js?v=2024-06-20-17	3.4 KiB
storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/css/main.0402b2b4.css	12.1 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

URL	Time Spent
jd.com/	919 ms
www.jd.com/	285 ms
global.jd.com/	0.0 ms

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout 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

URL	Transfer Size	Est Savings
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	229.1 KiB	109.9 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	27.8 KiB	14.1 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

URL	Transfer Size	Est Savings
/retail-mall/mall-common-component/pre/0.0.7/css/shortcut...	56.6 KiB	53.8 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 280 ms 398.5 KiB

URL	Transfer Size	Est Savings
storage.360buyimg.com/retail-mall/lib/react-dom.production.js	229.1 KiB	197.3 KiB
/??jdf/1.0.0/unit/base/5.0.0/base.js,jdf/lib/jquery-1.6.4...	104.9 KiB	56.5 KiB
/retail-mall/mall-common-component/pre/0.0.7/js/shortcut....	103.1 KiB	48.2 KiB
misc.360buyimg.com/jdf/??/1.0.0/unit/base/5.0.0/base.js,/lib/jquery-1.6.4.js	37.3 KiB	26.2 KiB
storage.360buyimg.com/retail-mall/overseas_pc/pre/0.0.22/js/main.0402b2b4.js	77.1 KiB	25.2 KiB
storage.360buyimg.com/dev-static/dra/probe-web/1.1.0/browser.js	54.8 KiB	23.6 KiB
storage.360buyimg.com/retail-mall/lib/react.production.js	27.8 KiB	21.6 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

Accessibility

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

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`

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.

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
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

SEO

Crawling and Indexing

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 #	Content	Error
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" 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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`

Results for https://jd.com

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (2)

Trust (2)

Usability (2)

Content (3)

Navigation (2)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Contrast

Internationalization and localization

Names and labels

Best practices

Best Practices

User Experience

General

SEO

Crawling and Indexing

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Internationalization and localization

Names and labels

Best practices

Best Practices

General

SEO

Crawling and Indexing

Content Best Practices

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