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Audit Complete

Results for https://zol.com.cn

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CN · CNY (¥) · Estimated Applicable regulations: PIPL Dev cost: ¥350/hr How jurisdiction is detected
United States United States · Santa Clara Completed: Apr 21, 2026 23:09 UTC
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Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C70

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

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.

Reasonable footprint with room for optimization.

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

Google Search Console · 3592 peers
You 70
·
Avg 73
At average
0 50 100
Better than 14% of Google Search Console sites See full Google Search Console benchmark →
OpenResty · 38 peers
You 70
·
Avg 70
At average
0 50 100
Better than 34% of OpenResty sites See full OpenResty benchmark →

Top Priorities (5)

1

Content-Security-Policy header is missing

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

Security › Security Headers
2

HSTS header is missing

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

Security › Security Headers
3

No Content-Security-Policy header found

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

Security › Content Security Policy
4

No <main> landmark found

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

Accessibility › Landmark Structure
5

131 third-party resources (100% of weight)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Inventory
View fix priority matrix

Fix Priority Matrix

5 findings

Quick Wins

3

High impact, low effort — start here.

Strategic

2

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →
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What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 14.1s 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.
1 accessibility issue excludes users who rely on assistive technology.
Your LCP is 14.1s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

Conversion Barriers

2 critical 6 warning

8 barrier(s) likely increasing bounce by ~35%.

Speed (1)

Page takes 14.1s to load

+12% bounce

Users abandon at ~3s — you're 11.6s over the 2.5s threshold

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

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 (1)

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 (1)

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

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

Return on Investment

¥1,750 investment → ¥3,341/month returns + CNY 50,000,000 risk avoided

Payback period: < 1 month First-year ROI: +2191%

Investment

¥1,750

5h · 5 findings

Monthly returns

¥3,341 /mo

~¥40,093 / year

  • Conversions recovered ¥3,338
  • Bandwidth savings ¥2.88

Regulatory risk avoided

CNY 50,000,000

if kept compliant

  • PIPL CNY 50,000,000

Payback period

0 12mo 24mo

¥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
¥ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

¥4,166,670 / month at risk

~¥50,000,035 / year if left unfixed

Compliance Risk

¥50,000,000

PIPL
  • No privacy policy link detected
    PIPL: CNY 100,000 – CNY 50,000,000
  • Trackers detected but no cookie policy found
    PIPL: CNY 100,000 – CNY 50,000,000
  • Trackers detected but no privacy policy found
    PIPL: CNY 100,000 – CNY 50,000,000

+1 more

Bandwidth Waste

¥2.88 /mo

5047.8 MB/mo × 0.571 CNY/GB

  • Optimize transfer: save ~505 KB per page load
    Saves ¥2.88/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

Unique monthly visitors from your analytics

Purchases, signups, or key actions

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 4 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.

54
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
54
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
50
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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.

5.63 s

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

14.09 s

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

198 ms

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

0.078

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

7.90 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.

14.16 s

Detailed Report

Audit breakdown by category with detailed findings.

54

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.

RequestCache TTLTransfer Size
icon.zol-img.com.cn/m/pages/v2/index/m.index.1.0.0.js?2022123600.0 s88.4 KiB
/m/pages/v2/open-modules/wap-cps-href-param/m.open.apple....3600.0 s62.9 KiB
icon.zol-img.com.cn/m/pages/v2/index/m.index.1.0.0.css?2022123600.0 s24.7 KiB
icon.zol-img.com.cn/m/pages/assets/components/hot-pk/images/VS@2x.png3600.0 s17.4 KiB
/m/pages/assets/components/hot-select/images/redianjingxu...3600.0 s16.7 KiB
icon.zol-img.com.cn/m/pages/assets/components/new-calendar/images/more.png3600.0 s14.9 KiB
icon.zol-img.com.cn/m/pages/assets/assets/images/logo/logo@3x.png3600.0 s14.0 KiB
/m/pages/assets/components/sites-nav/images/icon_mianfeiz...3600.0 s13.0 KiB
icon.zol-img.com.cn/src/index/z.page.index.1.0.0.css3600.0 s12.6 KiB
/m/pages/assets/components/sites-nav/images/icon_cuanjigu...3600.0 s11.9 KiB
/m/pages/assets/components/sites-nav/images/icon_tianti@2...3600.0 s10.8 KiB
p.zol-img.com.cn/da/m.js600.0 s9.2 KiB
/m/pages/assets/components/sites-nav/images/icon_zuixinba...3600.0 s10.5 KiB
/m/pages/assets/components/sites-nav/images/icon_chanpinp...3600.0 s10.1 KiB
js.zol.com.cn/pvn/qa.min.js3600.0 s5.7 KiB
icon.zol-img.com.cn/m/images/2018icons/icon-f2.png3600.0 s5.6 KiB
icon.zol-img.com.cn/m/images/2018icons/ssd_icon.png3600.0 s5.1 KiB
icon.zol-img.com.cn/m/images/2018icons/xinpinrili-icon.png3600.0 s5.1 KiB
icon.zol-img.com.cn/m/pages/v2/open-modules/wap-cps-href-param/m.open.apple.css3600.0 s4.7 KiB
icon.zol-img.com.cn/m/images/2018icons/icon-face.png3600.0 s4.5 KiB
zdw.w8.com.cn/wapp.ht?h=&t=1776812&c=3600.0 s4.1 KiB
icon.zol-img.com.cn/m/images/2018icons/icon-f5.png3600.0 s4.1 KiB
icon.zol-img.com.cn/m/images/2018icons/icon-f3.png3600.0 s4.0 KiB
/m/pages/assets/components/product-list/images/icon_top2@...3600.0 s3.8 KiB
/m/pages/assets/components/product-list/images/icon_top1@...3600.0 s3.6 KiB
icon.zol-img.com.cn/m/images/2018icons/icon-f1.png3600.0 s3.4 KiB
/m/pages/assets/components/product-list/images/icon_top3@...3600.0 s3.2 KiB
/m/pages/assets/components/technology-video-list/images/b...3600.0 s3.1 KiB
/m/pages/assets/components/product-list/images/icon_top4@...3600.0 s3.1 KiB
icon.zol-img.com.cn/public/js/m-common-module.js3600.0 s2.2 KiB
m.zol.com.cn/Html/m/js/public/wechat-share.js3600.0 s2.1 KiB
/m/pages/assets/components/hot-ask-list/images/icon_answe...3600.0 s1.8 KiB
icon.zol-img.com.cn/m/pages/v2/open-modules/rem/m.rem.js3600.0 s1.7 KiB
icon.zol-img.com.cn/m/pages/assets/components/search/images/jian.png3600.0 s1.6 KiB
js.zol.com.cn/wappv.js3600.0 s1.6 KiB
icon.zol-img.com.cn/app/qrimg/appload_inviewclick_PC_homepage_head.png3600.0 s1.6 KiB
mstat.zol.com.cn/adrs/ol.js3600.0 s1.4 KiB
icon.zol-img.com.cn/mp/baidu.news/img/pic-icon.gif3600.0 s1.3 KiB
m.zol.com.cn/Html/m/js/public/clickStat.js3600.0 s1.3 KiB
icon.zol-img.com.cn/mp/baidu.news/index/comment.png3600.0 s1.1 KiB
icon.zol-img.com.cn/mp/baidu.news/index/look.png3600.0 s1.0 KiB
m.zol.com.cn/Html/m/js/public/wappv.js3600.0 s877 B
mstat.zol.com.cn/adrs/bms_tag.php?0.30519646884679050.0 ms380 B
js.zol.com.cn/pvn/pv.ht?&t=1776813&c=&callback=_jsonp17768129196143600.0 s441 B
cpro.zol.com.cn/common/openjs/dcbaz.js?id=veavsaa0.0 ms117 B
/?t=1776812919786&t1=1776812919784&ns=zol.media.index&pag...0.0 ms69 B
/?t=1776812919786&t1=1776812919784&ns=zol.media.index&pag...0.0 ms17 B
/?t=1776812919787&t1=1776812919784&ns=zol.media.index&pag...0.0 ms17 B
/?t=1776812919787&t1=1776812919784&ns=zol.media.index&pag...0.0 ms17 B
/?t=1776812919787&t1=1776812919784&ns=zol.media.index&pag...0.0 ms17 B
/?t=1776812919787&t1=1776812919784&ns=zol.media.index&pag...0.0 ms17 B
/?t=1776812919788&t1=1776812919784&ns=zol.media.index&pag...0.0 ms17 B
/?t=1776812919789&t1=1776812919784&ns=zol.media.index&pag...0.0 ms17 B

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.

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
div.focus > ul.container > li.swiper-slide > a.flex-pic div.focus > ul.container > li.swiper-slide > a.flex-pic
/g8/M00/02/09/ChMkLWnndWCIaL8dAAP2YcXoADgAAIKUgNKNeYAA_Z5...253.6 KiB142.9 KiB
div.focus > ul.container > li.swiper-slide > a.flex-pic div.focus > ul.container > li.swiper-slide > a.flex-pic
/g8/M00/02/09/ChMkLWnndfKIR7laAAK9lUEfGGkAAIKUwIOJV4AAr2t...175.4 KiB64.7 KiB
div.focus > ul.container > li.swiper-slide > a.flex-pic div.focus > ul.container > li.swiper-slide > a.flex-pic
/g8/M00/02/09/ChMkLWnnSXWIEltaAAI5jqTLwOYAAIKKgCHcWgAAjmm...142.4 KiB31.7 KiB
div.focus > ul.container > li.swiper-slide > a.flex-pic div.focus > ul.container > li.swiper-slide > a.flex-pic
/g8/M00/02/08/ChMkLWnnMyWIPZjQAAIcLDkSJVcAAIKGwHAGOsAAhxE...135.0 KiB24.4 KiB
影驰RTX 5070 Ti《识质存在》测试:4K画质拉满 体验赛博养娃 li.pics > a > div.pics > figure.pic
/t_s400x300/g8/M00/02/09/ChMkLWnnSO6IEPEoAAPIYuOzmTUAAIKK...36.8 KiB17.3 KiB
阿维塔06T 2026款 Elite 双电机纯电版 section.bg-white > div.flex-box > a.pro-item > img
2b.zol-img.com.cn/product/275_400x300/407/cetDW9aUNgp2.jpg17.4 KiB14.8 KiB
body > section.bg-white > div.jingxuan-section > a.icon body > section.bg-white > div.jingxuan-section > a.icon
/m/pages/assets/components/hot-select/images/redianjingxu...16.1 KiB14.1 KiB
OPPO Find X9s Pro(12GB/256GB) section.bg-white > div.flex-box > a.pro-item > img
2c.zol-img.com.cn/product/275_400x300/154/ceUZsCLwwpMyg.jpg15.6 KiB13.2 KiB
div.hot-pk-list > div.hot-pk-warp > a.hotpk > ::after div.hot-pk-list > div.hot-pk-warp > a.hotpk > ::after
icon.zol-img.com.cn/m/pages/assets/components/hot-pk/images/VS@2x.png16.8 KiB12.7 KiB
Redmi K90 Max(12GB/256GB) section.bg-white > div.flex-box > a.pro-item > img
2e.zol-img.com.cn/product/275_400x300/988/cex9aqMIpMlc.jpg13.4 KiB11.3 KiB
影驰RTX 5070 Ti《识质存在》测试:4K画质拉满 体验赛博养娃 li.pics > a > div.pics > figure.pic
/t_s400x300/g8/M00/01/01/ChMkLWncvMOIGQX5AA2bh-ewffYAAIEW...25.8 KiB11.1 KiB
section.bg-white > ul.sites-nav > a.sites-nav__item > ::before section.bg-white > ul.sites-nav > a.sites-nav__item > ::before
/m/pages/assets/components/sites-nav/images/icon_mianfeiz...12.4 KiB10.6 KiB
section.bg-white > ul.sites-nav > a.sites-nav__item > ::before section.bg-white > ul.sites-nav > a.sites-nav__item > ::before
/m/pages/assets/components/sites-nav/images/icon_cuanjigu...11.4 KiB9.6 KiB
body > section.bg-white > a.rili-title body > section.bg-white > a.rili-title
icon.zol-img.com.cn/m/pages/assets/components/new-calendar/images/more.png14.3 KiB8.6 KiB
section.bg-white > ul.sites-nav > a.sites-nav__item > ::before section.bg-white > ul.sites-nav > a.sites-nav__item > ::before
/m/pages/assets/components/sites-nav/images/icon_tianti@2...10.1 KiB8.3 KiB
section.bg-white > ul.sites-nav > a.sites-nav__item > ::before section.bg-white > ul.sites-nav > a.sites-nav__item > ::before
/m/pages/assets/components/sites-nav/images/icon_zuixinba...9.9 KiB8.1 KiB
中关村在线 header.global-page-header > div.logo-box > h2 > a.logo-box__text
icon.zol-img.com.cn/m/pages/assets/assets/images/logo/logo@3x.png13.4 KiB8.1 KiB
section.bg-white > ul.sites-nav > a.sites-nav__item > ::before section.bg-white > ul.sites-nav > a.sites-nav__item > ::before
/m/pages/assets/components/sites-nav/images/icon_chanpinp...9.5 KiB7.7 KiB
body > img body > img
/t_s640x2000/g7/M00/08/03/ChMkK2YuGiuIY4V0AABUjdzkC54AAdh...15.9 KiB5.5 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:1086.867 label:Time to first byte subpart:timeToFirstByte] map[duration:164.093 label:Resource load delay subpart:resourceLoadDelay] map[duration:2072.751 label:Resource load duration subpart:resourceLoadDuration] map[duration:23.819 label:Element render delay subpart:elementRenderDelay]]
lhId: page-19-A
nodeLabel: div.focus > ul.container > li.swiper-slide > a.flex-pic
path: 1,HTML,1,BODY,13,SECTION,0,DIV,0,UL,2,LI,0,A
selector: div.focus > ul.container > li.swiper-slide > a.flex-pic
snippet: <a href="https://m.zol.com.cn/article/11689502.html" data-ai="2" onclick="objectForClickStat.imgStat('m_wap_new_shouye_focus');" class="flex-pic pic swiper-lazy" style="background-image: url(&quot;https://home-fd.zol-img.com.cn/g8/M00/02/09/ChMkLWnn…&quot;);">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-19-A
nodeLabel: div.focus > ul.container > li.swiper-slide > a.flex-pic
path: 1,HTML,1,BODY,13,SECTION,0,DIV,0,UL,2,LI,0,A
selector: div.focus > ul.container > li.swiper-slide > a.flex-pic
snippet: <a href="https://m.zol.com.cn/article/11689502.html" data-ai="2" onclick="objectForClickStat.imgStat('m_wap_new_shouye_focus');" class="flex-pic pic swiper-lazy" style="background-image: url(&quot;https://home-fd.zol-img.com.cn/g8/M00/02/09/ChMkLWnn…&quot;);">

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.

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: 3.8 s
URLTime Spent
zol.com.cn/1.2 s
www.zol.com.cn/630 ms
www.zol.com.cn/2.0 s
m.zol.com.cn/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Other1.5 s
Style & Layout1.3 s
Script Evaluation759 ms
Rendering285 ms
Script Parsing & Compilation96 ms
Parse HTML & CSS46 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable

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: 10 ms 66.6 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
body > img body > img
/t_s640x2000/g7/M00/08/03/ChMkK2YuGiuIY4V0AABUjdzkC54AAdh...
ul.header-panel-nav__tool > li.flex-shrink > a > img ul.header-panel-nav__tool > li.flex-shrink > a > img
icon.zol-img.com.cn/m/images/2018icons/icon-f1.png
ul.header-panel-nav__tool > li.flex-shrink > a > img ul.header-panel-nav__tool > li.flex-shrink > a > img
icon.zol-img.com.cn/m/images/2018icons/icon-f2.png
ul.header-panel-nav__tool > li.flex-shrink > a > img ul.header-panel-nav__tool > li.flex-shrink > a > img
icon.zol-img.com.cn/m/images/2018icons/icon-f3.png
ul.header-panel-nav__tool > li.flex-shrink > a > img ul.header-panel-nav__tool > li.flex-shrink > a > img
icon.zol-img.com.cn/m/images/2018icons/xinpinrili-icon.png
ul.header-panel-nav__tool > li.flex-shrink > a > img ul.header-panel-nav__tool > li.flex-shrink > a > img
icon.zol-img.com.cn/m/images/2018icons/icon-f5.png
ul.header-panel-nav__tool > li.flex-shrink > a > img ul.header-panel-nav__tool > li.flex-shrink > a > img
icon.zol-img.com.cn/m/images/2018icons/ssd_icon.png

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

Layout shift culprits
Document request latency
Optimize DOM size
Forced reflow
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
Reduce unused CSS
Avoids enormous network payloads Total size was 1,643 KiB
JavaScript execution time 0.6 s
Avoid long main-thread tasks 6 long tasks found
Network Requests
Network Round Trip Times 190 ms
Server Backend Latencies 420 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 190 ms
Avoid large layout shifts 2 layout shifts found
INP breakdown
User Timing marks and measures
Avoid non-composited animations
54

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
2026.04.22发布 section.bg-white > div.flex-box > a.pro-item > span.release-time
预约直播 div.flex-box > a.pro-item > span.pl8 > span.live
2026.04.21发布 section.bg-white > div.flex-box > a.pro-item > span.release-time
2026.04.21发布 section.bg-white > div.flex-box > a.pro-item > span.release-time
评测 li.pics > a > p.tags > span.blue
2小时前 li.pics > a > p.tags > span.time
评测 li.pics > a > p.tags > span.blue
19小时前 li.pics > a > p.tags > span.time
2026年04月22日 19点00分 div.flex-box > a.live-list-item > span.tips > span.time
评测 li.pics > a > p.tags > span.blue
11小时前 li.pics > a > p.tags > span.time
评测 li.pics > a > p.tags > span.blue
11小时前 li.pics > a > p.tags > span.time
评测 li.pics > a > p.tags > span.blue
12小时前 li.pics > a > p.tags > span.time
查看榜单 div.product-list > div > div.list-header > a.look-rank
评测 li.pics > a > p.tags > span.blue
12小时前 li.pics > a > p.tags > span.time
评测 li.pics > a > p.tags > span.blue
11小时前 li.pics > a > p.tags > span.time
545.3万次播放 li.swiper-slide > a.relative > div.detail-text > span.time
1.5万次播放 li.swiper-slide > a.relative > div.detail-text > span.time
评测 li.pics > a > p.tags > span.blue
22小时前 li.pics > a > p.tags > span.time
评测 li.pics > a > p.tags > span.blue
04.17 li.pics > a > p.tags > span.time
评测 li.pics > a > p.tags > span.blue
04.20 li.pics > a > p.tags > span.time
10回答 div.hot-ask-list > div.asks-content > a.asks-content-title > div.num
6回答 div.hot-ask-list > div.asks-content > a.asks-content-title > div.num
评测 a.flex-box > div.detail-text > p.tags > span.blue
04.18 a.flex-box > div.detail-text > p.tags > span.time
评测 a.flex-box > div.detail-text > p.tags > span.blue
04.17 a.flex-box > div.detail-text > p.tags > span.time
评测 li.pics > a > p.tags > span.blue
61 li.pics > a > p.tags > span.comment-num
04.17 li.pics > a > p.tags > span.time
点击加载更多 body > section.bg-white > div.load-more
网站经营者信息公示 body > footer.pl16 > div.bottom-breads > a.info-link

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 html

These are opportunities to improve the interpretation of your content by users in different locales.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > img body > 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
body > header.global-page-header > div.side-box > a.iconfont body > header.global-page-header > div.side-box > a.iconfont
body > section.bg-white > a.rili-title body > section.bg-white > a.rili-title
body > section.bg-white > div.jingxuan-section > a.icon body > section.bg-white > div.jingxuan-section > a.icon

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.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
最新报价 产品排行 性能天梯 免费众测 攒机广场 body > section.bg-white > ul.sites-nav
影驰RTX 5070 Ti《识质存在》测试:4K画质拉满 体验赛博养娃 评测 2 2小时前 再战超轻量级 雷柏VT0/VT3s Air MAX电竞鼠标刷新… body > section.bg-white > ul.news-list

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

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
head > meta head > meta

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
vivo300拍照片有什么优势 10回答 ul.news-list > div.hot-ask-list > div.asks-content > a.asks-content-title

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
Input buttons have discernible text.
Form elements have associated labels
Document has a `<title>` element
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
Heading elements appear in a sequentially-descending order
Deprecated ARIA roles were not used
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
`[accesskey]` values are unique
`[aria-*]` attributes match their roles
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements use only permitted ARIA attributes
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
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
The page contains a heading, skip link, or landmark region
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has a valid value for its `[lang]` attribute
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
`<input type="image">` elements have `[alt]` text
Links are distinguishable without relying on color.
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
No element has a `[tabindex]` value greater than 0
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
50

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.zol.com.cn/Allowed
?json={%22scheme%22:%22navigateTo%22,%22data%22:{%22page%...Allowed
2d.zol-img.com.cn/manu_photo/1795.jpgAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/613.pngAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/1673.jpgAutomatically upgraded to HTTPS
2a.zol-img.com.cn/manu_photo/160.pngAutomatically upgraded to HTTPS
2d.zol-img.com.cn/manu_photo/223.jpgAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/21.jpgAutomatically upgraded to HTTPS
2a.zol-img.com.cn/manu_photo/232.jpgAutomatically upgraded to HTTPS
2c.zol-img.com.cn/manu_photo/1474.jpgAutomatically upgraded to HTTPS
2d.zol-img.com.cn/manu_photo/227.jpgAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/125.jpgAutomatically upgraded to HTTPS

User Experience

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
影驰RTX 5070 Ti《识质存在》测试:4K画质拉满 体验赛博养娃 a > div.pics > figure.pic > img
/t_s400x300/g8/M00/02/09/ChMkLWnnSO6IEPEoAAPIYuOzmTUAAIKK...125 x 84 (1.49)400 x 300 (1.33)
影驰RTX 5070 Ti《识质存在》测试:4K画质拉满 体验赛博养娃 a > div.pics > figure.pic > img
/t_s400x300/g8/M00/02/05/ChMkLWnl-WiIdkNEAAw_tsU6WCkAAIJZ...125 x 84 (1.49)400 x 225 (1.78)
影驰RTX 5070 Ti《识质存在》测试:4K画质拉满 体验赛博养娃 a > div.pics > figure.pic > img
/t_s400x300/g8/M00/01/01/ChMkLWncvMOIGQX5AA2bh-ewffYAAIEW...125 x 84 (1.49)400 x 225 (1.78)
div#top-login-box > div.side-box > div.userinfo > img div#top-login-box > div.side-box > div.userinfo > img
icon.zol-img.com.cn/m/images/2018icons/icon-face.png30 x 58 (0.52)58 x 58 (1.00)

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
Failed to load resource: the server responded with a status of 404 ()

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Mixed content
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
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
85

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Crawling and Indexing

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #ContentError
27Disallow: https://m.zol.com.cn/soft/comments/Pattern should either be empty, start with "/" or "*"
62Disallow: https://m.zol.com.cn/soft/comments/Pattern should either be empty, start with "/" or "*"

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
body > img body > img

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

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

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

59
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
61
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
46
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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.

3.13 s

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

3.75 s

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

144 ms

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

0.022

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

3.56 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.

3.87 s

Detailed Report

Audit breakdown by category with detailed findings.

59

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.

RequestCache TTLTransfer Size
pic.zol-img.com.cn/202604/philips123006hp1400yx_0414_25egq.jpg3600.0 s77.1 KiB
icon.zol-img.com.cn/public/js/jq-with-migrate3.js3600.0 s44.0 KiB
icon.zol-img.com.cn/mainpage/2017/normal/index-icon-201704.png3600.0 s42.1 KiB
/index.php?c=Api_HomePage&callback=13123&callback=jQuery3...7200.0 s35.4 KiB
pic.zol-img.com.cn/202604/hp122440hp1400nb_0420_a1roy.jpg3600.0 s17.0 KiB
icon.zol-img.com.cn/src/open-modules/z.game.download.js3600.0 s14.7 KiB
icon.zol-img.com.cn/src/index/z.page.index.1.0.0.js3600.0 s13.8 KiB
icon.zol-img.com.cn/src/index/z.page.index.1.0.0.css3600.0 s12.6 KiB
icon.zol-img.com.cn/src/index/images/index-icon-6927721004.png3600.0 s12.3 KiB
icon.zol-img.com.cn/public/js/pc-common-module.js3600.0 s9.1 KiB
p.zol-img.com.cn/da/index.js600.0 s6.9 KiB
icon.zol-img.com.cn/src/index/images/logo@2x-170e5b44d2.png3600.0 s7.4 KiB
icon.zol-img.com.cn/src/index/images/search-icon@3x-7cd601a140.png3600.0 s6.3 KiB
zdw.w8.com.cn/p.ht?h=&t=1776812&c=3600.0 s5.9 KiB
js.zol.com.cn/pvn/qa.min.js3600.0 s5.8 KiB
icon.zol-img.com.cn/src/index/images/hot@2x-baf928cf21.png3600.0 s4.9 KiB
icon.zol-img.com.cn/src/index/images/quotation@3x-c6bdca5dca.png3600.0 s4.8 KiB
icon.zol-img.com.cn/src/index/images/rank-list@3x-8c85d61912.png3600.0 s4.7 KiB
icon.zol-img.com.cn/cms/js/jquery.SuperSlide.2.1.1.js?13600.0 s4.5 KiB
icon.zol-img.com.cn/src/index/images/zj@3x-9e562b39b7.png3600.0 s4.4 KiB
icon.zol-img.com.cn/src/index/images/scroll-news-btn_06-79fb8e3a78.png3600.0 s4.2 KiB
2b.zol-img.com.cn/manu_photo/1673.jpg3600.0 s4.1 KiB
stat.zol.com.cn/adrs/bms_tag.php?0.83977070436100420.0 ms3.2 KiB
icon.zol-img.com.cn/src/index/images/down-app@3x-054e44f816.png3600.0 s3.9 KiB
icon.zol-img.com.cn/src/index/images/end-live1@2x-1c7b1a81d8.png3600.0 s3.9 KiB
icon.zol-img.com.cn/src/index/images/select-sort@2x-009947f456.png3600.0 s3.7 KiB
icon.zol-img.com.cn/public/js/web_foot.js3600.0 s3.6 KiB
icon.zol-img.com.cn/src/index/images/more-icon_r@2x-05273e2cb5.png3600.0 s3.5 KiB
2a.zol-img.com.cn/manu_photo/160.png28800.0 s4.7 KiB
2b.zol-img.com.cn/manu_photo/125.jpg28800.0 s4.5 KiB
2b.zol-img.com.cn/manu_photo/613.png28800.0 s4.5 KiB
icon.zol-img.com.cn/3/250407/prev.png3600.0 s3.3 KiB
icon.zol-img.com.cn/3/250407/next.png3600.0 s3.3 KiB
2b.zol-img.com.cn/manu_photo/21.jpg28800.0 s4.0 KiB
2a.zol-img.com.cn/manu_photo/232.jpg28800.0 s3.8 KiB
2d.zol-img.com.cn/manu_photo/1795.jpg28800.0 s3.7 KiB
2d.zol-img.com.cn/manu_photo/223.jpg28800.0 s3.7 KiB
2c.zol-img.com.cn/manu_photo/1474.jpg28800.0 s3.5 KiB
icon.zol-img.com.cn/products/v4/b2c-icon/jd22.png3600.0 s2.3 KiB
2d.zol-img.com.cn/manu_photo/227.jpg28800.0 s2.8 KiB
icon.zol-img.com.cn/app/qrimg/appload_inviewclick_PC_homepage_head.png3600.0 s1.6 KiB
stat.zol.com.cn/adrs/cg_gmine.js3600.0 s1.4 KiB
stat.zol.com.cn/adrs/ol.js3600.0 s1.4 KiB
pic.zol-img.com.cn/201801/ad_0125.png3600.0 s1.3 KiB
icon.zol-img.com.cn/src/open-modules/z.open.shunt.js3600.0 s1.1 KiB
/pvn/pv.ht?&t=1776813&c=5MaB4Pvyj7QuMzEwNzE1LjE3NzY4MTI5N...3600.0 s392 B
pic.zol-img.com.cn/dot.gif3600.0 s272 B
cpro.zol.com.cn/site/gb_ajxt/qh/x.js0.0 ms117 B
/?t=1776812942566&t1=1776812942562&ns=zol.media.www&paget...0.0 ms69 B
/?t=1776812942565&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942566&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942567&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942567&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942567&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942568&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942568&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942568&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942568&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942569&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942569&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942569&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942569&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
/?t=1776812942570&t1=1776812942562&ns=zol.media.www&paget...0.0 ms17 B
icon.zol-img.com.cn/public/js/jq-with-migrate3.js3600.0 s0 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:1.018 source:map[column:14197 line:0 type:source-location url:https://cdn.wwads.cn/js/fp-3.3.6.min.js urlProvider:network]] map[reflowTime:0.764 source:map[column:14930 line:0 type:source-location url:https://cdn.adwork.net/js/makemoney.js urlProvider:network]]]

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:1365.708 label:Time to first byte subpart:timeToFirstByte] map[duration:19.326 label:Resource load delay subpart:resourceLoadDelay] map[duration:2023.201 label:Resource load duration subpart:resourceLoadDuration] map[duration:41.761 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: div.focus2015 > div#focus-tab-1 > a > img
path: 1,HTML,1,BODY,16,SECTION,0,DIV,1,DIV,0,DIV,0,DIV,0,A,0,IMG
selector: div.focus2015 > div#focus-tab-1 > a > img
snippet: <img src="https://up-fd.zol-img.com.cn/g8/M00/02/09/ChMkLWnnSXWIEltaAAI5jqTLwOYAAIKK…" width="495" height="337">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: div.focus2015 > div#focus-tab-1 > a > img
path: 1,HTML,1,BODY,16,SECTION,0,DIV,1,DIV,0,DIV,0,DIV,0,A,0,IMG
selector: div.focus2015 > div#focus-tab-1 > a > img
snippet: <img src="https://up-fd.zol-img.com.cn/g8/M00/02/09/ChMkLWnnSXWIEltaAAI5jqTLwOYAAIKK…" width="495" height="337">

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.

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
div.focus2015 > div#focus-tab-1 > a > img div.focus2015 > div#focus-tab-1 > a > img
/g8/M00/02/09/ChMkLWnnSXWIEltaAAI5jqTLwOYAAIKKgCHcWgAAjmm...142.4 KiB115.2 KiB
div.package-box201900823 > div.slide-img-big > a.pic > img div.package-box201900823 > div.slide-img-big > a.pic > img
/t_s2000x2000/g8/M00/02/08/ChMkLWnm6PmITeyrAAFNmQU9GfQAAI...83.3 KiB72.9 KiB
ul.big-pic > li > a > img ul.big-pic > li > a > img
/t_s2000x2000/g8/M00/02/08/ChMkLWnm6NiITA7uAAEq0bBBZZwAAI...74.6 KiB64.2 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/06/ChMkLWne9hGILpdnAAeUihSIpKoAAIF...70.1 KiB63.6 KiB
div.wrapper > div > a.gmine_ad > img.ad-img div.wrapper > div > a.gmine_ad > img.ad-img
pic.zol-img.com.cn/202604/philips123006hp1400yx_0414_25egq.jpg76.8 KiB63.2 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/0D/ChMkLWnh49CIZGd4AAiXXvdkBAcAAIH...68.9 KiB62.4 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/02/08/ChMkLWnnIXuIdBB8AAiIBB9QQc0AAIK...58.1 KiB51.7 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/0C/ChMkLWnhqdCIG63UAAMlUHoW4vAAAIH...44.9 KiB38.5 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/07/ChMkLWnfQBqIAPNkAAPS6blhrmQAAIF...43.5 KiB37.1 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/02/06/ChMkLWnmKJeIZzHkAAOjwKifkRgAAIJ...42.6 KiB36.2 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/0D/ChMkLWnh7rKIQSPAAASAZvb1OGwAAIH...39.0 KiB32.5 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/06/ChMkLWnfNjyIBxXoAAKe5mdt4qkAAIF...37.2 KiB30.7 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/06/ChMkLWne-ZmIPNF4AAQFIjegnVUAAIF...37.0 KiB30.5 KiB
li > a > div.video-picture > img.pic li > a > div.video-picture > img.pic
/t_s530x300c/g8/M00/01/0D/ChMkLWniGfKIb-xIAAK2nAyZt5wAAIH...33.9 KiB27.4 KiB
“我们学校潮好玩”再度启航启航 致态与你相约中南大学 致态校园行登陆沈阳!首站沈阳理工大学解锁存储新速度 为校园生活充电护航 航嘉与你相约“我们学校潮好玩”第… body > div.package-box201900823
/g8/M00/00/07/ChMkLWnYX0SITwNkAAFErAQehe4AAIB4gNTn3MAAUTE...81.2 KiB26.5 KiB
ul.pic-list > li > a > img ul.pic-list > li > a > img
/t_s2000x2000/g8/M00/01/09/ChMkLWnge6OIPlMfAABT_k27sJUAAI...20.7 KiB18.4 KiB
ul.pic-list > li > a > img ul.pic-list > li > a > img
/t_s2000x2000/g8/M00/01/03/ChMkLWnduoiILESYAABBOt2_WsYAAI...16.3 KiB13.9 KiB
div#rank_mobile > div.select-layout > h3.select-mobile__title > ::before div#rank_mobile > div.select-layout > h3.select-mobile__title > ::before
icon.zol-img.com.cn/src/index/images/index-icon-6927721004.png11.7 KiB9.1 KiB
华为WATCH Ultimate 2 div.new-publish > div.pic > a > img
/t_s160x160f/g8/M00/0E/02/ChMkLWlLYcuIQqMqAABK5uh_CsEAAG5...7.9 KiB6.8 KiB
微星X870E主板上市 div.scroll-top > ul#news_list_scroll > li > a
icon.zol-img.com.cn/mainpage/2017/normal/index-icon-201704.png41.5 KiB5.8 KiB
div.search > form#search_frm > div.search-btn > input.icon div.search > form#search_frm > div.search-btn > input.icon
icon.zol-img.com.cn/src/index/images/search-icon@3x-7cd601a140.png5.7 KiB5.0 KiB
dl.flex-box > dd > div.name > ::after dl.flex-box > dd > div.name > ::after
icon.zol-img.com.cn/src/index/images/hot@2x-baf928cf21.png4.3 KiB4.1 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: 846 ms
URLTime Spent
zol.com.cn/656 ms
www.zol.com.cn/190 ms
www.zol.com.cn/0.0 ms

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Other2.2 s
Parse HTML & CSS1.1 s
Script Evaluation881 ms
Style & Layout602 ms
Rendering129 ms
Script Parsing & Compilation110 ms
Garbage Collection49 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 3.4 KiB
URLTransfer SizeEst Savings
icon.zol-img.com.cn/public/js/pc-common-module.js8.5 KiB3.4 KiB

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

Layout shift culprits
Optimize DOM size
Font display
Modern HTTP
Optimize viewport for mobile
Minify CSS
Reduce unused CSS
Reduce unused JavaScript
JavaScript execution time 0.7 s
Avoid long main-thread tasks 3 long tasks found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 200 ms
Server Backend Latencies 780 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 140 ms
Avoid large layout shifts 1 layout shift found
INP breakdown
User Timing marks and measures
Avoid non-composited animations
61

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.search > form#search_frm > div.search-keyword > input#keyword div.search > form#search_frm > div.search-keyword > input#keyword
下载APP div.wrapper > div.tools-nav > div.tools-nav__downApp > a.tools-nav__item
排行榜 header.header > div.wrapper > div.tools-nav > a.tools-nav__item
查报价 header.header > div.wrapper > div.tools-nav > a.tools-nav__item
攒电脑 header.header > div.wrapper > div.tools-nav > a.tools-nav__item
投稿 header.header > div.wrapper > div.tools-nav > a.tools-nav__item
登录 header.header > div.wrapper > div#login-wrap > div.login-btn
更多 div.category-main > div.category-nav__hd > a.title-more > span.text
更多 div.category-sidebar > div.section-tab > a.title-more > span.text
参数 div.new-publish > div.new-publish__fl > div.label > a
图片 div.new-publish > div.new-publish__fl > div.label > a
口碑 div.new-publish > div.new-publish__fl > div.label > a
参数 div.new-publish > div.new-publish__fl > div.label > a
图片 div.new-publish > div.new-publish__fl > div.label > a
口碑 div.new-publish > div.new-publish__fl > div.label > a
参数 div.new-publish > div.new-publish__fl > div.label > a
图片 div.new-publish > div.new-publish__fl > div.label > a
口碑 div.new-publish > div.new-publish__fl > div.label > a
快讯 body > section#scroll-news-wrap > a.scroll-message-tit
新闻日历 div#focus-news-section > div.section-tab > a.more > div.text
更多 section#float_nav_03 > div.section-tab > a.title-more > span.text
更多 section#float_nav_04 > div#focus_labs_1 > a.title-more > span.text
我要提问 section#float_nav_12 > div.section-tab > a.ask-more > span.text
更多 section#float_nav_13 > div.section-tab > a.title-more > span.text

These are opportunities to improve the legibility of your content.

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.focus2015 > div#focus-tab-2 > a > img div.focus2015 > div#focus-tab-2 > a > img
div.wrapper > div > a.gmine_ad > img.ad-img div.wrapper > div > a.gmine_ad > img.ad-img
div.wrapper > div > a.gmine_ad > img div.wrapper > div > a.gmine_ad > img
div.wrapper > div > a.gmine_ad > img.ad-img div.wrapper > div > a.gmine_ad > img.ad-img
div.wrapper > div > a.gmine_ad > img div.wrapper > div > a.gmine_ad > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div.wrapper > iframe body > div.wrapper > iframe

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
header.header > div.wrapper > div.logo > a header.header > div.wrapper > div.logo > a
div.category-nav-list > dl.flex-box > dd.end > a.more div.category-nav-list > dl.flex-box > dd.end > a.more
div.category-nav-list > dl.flex-box > dd.end > a.more div.category-nav-list > dl.flex-box > dd.end > a.more
div.category-nav-list > dl.flex-box > dd.end > a.more div.category-nav-list > dl.flex-box > dd.end > a.more
div.category-nav-list > dl.flex-box > dd.end > a.more div.category-nav-list > dl.flex-box > dd.end > a.more
div.category-nav-list > dl.dl-end > dd.end > a.more div.category-nav-list > dl.dl-end > dd.end > a.more
div#scroll-stop > div.focus2015 > div#focus-tab-2 > a div#scroll-stop > div.focus2015 > div#focus-tab-2 > a
body > div.wrapper > div > a.gmine_ad body > div.wrapper > div > a.gmine_ad
body > div.wrapper > div > a.gmine_ad body > div.wrapper > div > a.gmine_ad
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
div.module-app > ul.app-list > li > a.app-icon div.module-app > ul.app-list > li > a.app-icon
body > section#float_nav_14 > div.section-tab > a.title-more body > section#float_nav_14 > div.section-tab > a.title-more

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.

Internationalization and localization

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These are opportunities to improve the interpretation of your content by users in different locales.

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
vivo X300 Ultra dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
华为畅享90 Pro Max 128GB dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
OPPO Find X9 Pro dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
一加15T dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
Redmi Turbo 5 MAX dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
HUAWEI Mate 80 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
华为MateBook D 16 SE版 2024 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
联想拯救者R9000P 2025 AI元启 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
机械革命无界15X Pro dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
华硕天选6 Pro 酷睿版 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
惠普暗影精灵11 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
苹果MacBook Air 13 2025款 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
NVIDIA RTX 5090 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
技嘉GeForce RTX 5060 WINDFORCE 8G dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
华硕TUF-RTX5070TI-O16G dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
瀚铠Radeon RX 9070 XT 超合金PRO dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
七彩虹iGame GeForce RTX 5070 Ti Ultra W OC 16GB dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
影驰GeForce RTX 5080 HOF OC LAB Deluxe-X dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
大众 与众08 2026款 长续航后驱 Pure dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
奥迪A6L 2026款 2.0T 臻选致雅型 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
宝马X3 2026款 xDrive25L M运动曜夜套装 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
零跑汽车 零跑D19 2026款 增程400尊享版 六座 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
日产NX8 2026款 增程 150 Pro dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
特斯拉 Model Y 2026款 后轮驱动版 dl.flex-box > dd > div.name > a
组图 dl.flex-box > dd > div.label > a
TCL 75Q9L Pro div.rank-info > div.last-mall > div.rank-title > 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 html

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-hidden="true"]` is not present on the document `<body>`
Input buttons have discernible text.
Form elements have associated labels
`<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
Heading elements appear in a sequentially-descending order
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
`[accesskey]` values are unique
`[aria-*]` attributes match their roles
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
Deprecated ARIA roles were not used
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements use only permitted ARIA attributes
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
`[role]` values are valid
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
The page contains a heading, skip link, or landmark region
ARIA IDs are unique
No form fields have multiple labels
`<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 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.
No element has a `[tabindex]` value greater than 0
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
46

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.zol.com.cn/Allowed
2d.zol-img.com.cn/manu_photo/1795.jpgAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/613.pngAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/1673.jpgAutomatically upgraded to HTTPS
2a.zol-img.com.cn/manu_photo/160.pngAutomatically upgraded to HTTPS
2d.zol-img.com.cn/manu_photo/223.jpgAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/21.jpgAutomatically upgraded to HTTPS
2a.zol-img.com.cn/manu_photo/232.jpgAutomatically upgraded to HTTPS
2c.zol-img.com.cn/manu_photo/1474.jpgAutomatically upgraded to HTTPS
2d.zol-img.com.cn/manu_photo/227.jpgAutomatically upgraded to HTTPS
2b.zol-img.com.cn/manu_photo/125.jpgAutomatically upgraded to HTTPS

User Experience

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
华为智慧屏 S5 Pro 75英寸 div.new-publish > div.pic > a > img
/t_s160x160f/g7/M00/07/03/ChMkLGaxvYSIdTPSAAAVtgatlKMAAhd...108 x 122 (0.89)160 x 160 (1.00)
华为家庭存储(4TB) div.new-publish > div.pic > a > img
/t_s160x160f/g7/M00/0A/08/ChMkK2ZWnoSIYyw5AAAMW7B3ceoAAer...108 x 122 (0.89)160 x 160 (1.00)
华为智能门锁Pro div.new-publish > div.pic > a > img
/t_s160x160f/g7/M00/0A/0C/ChMkK2XwIfiIca3eAAANaFrMUk4AAbs...108 x 122 (0.89)160 x 160 (1.00)

Browser Compatibility

A character encoding declaration is required. It can be done with a `<meta>` tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn more about declaring the character encoding.

Why this matters

Performance issues directly impact user engagement and conversion rates.

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
Uncaught Error: Please keep only one makemoney.js script!
Uncaught TypeError: Cannot read properties of undefined (reading 'ns')
错误:页面中存在多个makemoney.js脚本!请保留一个。

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Mixed content
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Serves images with appropriate resolution
Page has the HTML doctype
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
85

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
本月销量最高 div.section-tab > ul.switc > li > a
7日热文 div.section-tab > ul.switc > li > a
7日热评 div.section-tab > ul.switc > li > a
7日热帖 div.section-tab > ul.switc > li > a
本地行情 div.section-tab > ul.switc > li > a
厨卫 div.section-tab > ul.switc > li > a
健康 div.section-tab > ul.switc > li > a

To appear in search results, crawlers need access to your app.

Content Best Practices

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.focus2015 > div#focus-tab-2 > a > img div.focus2015 > div#focus-tab-2 > a > img
div.wrapper > div > a.gmine_ad > img.ad-img div.wrapper > div > a.gmine_ad > img.ad-img
div.wrapper > div > a.gmine_ad > img div.wrapper > div > a.gmine_ad > img
div.wrapper > div > a.gmine_ad > img.ad-img div.wrapper > div > a.gmine_ad > img.ad-img
div.wrapper > div > a.gmine_ad > img div.wrapper > div > a.gmine_ad > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul.app-list > li > a.app-icon > img ul.app-list > li > a.app-icon > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img
ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img ul#ba10f5e7814cdd8903d21630bbbe64e8 > li > a.img > img

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

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

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