Spain · Madrid Completed: Apr 16, 2026 17:01 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 70 / 100
Based on 8 categories, 0 sections
Fast site — your users get a smooth experience.
Several missing protections leave your users and data exposed.
Major barriers for users with disabilities — up to 15% of your audience.
Well-optimized for search — your content is discoverable.
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.
The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.
Weights reflect general web best practices. Individual needs may differ.
Content-Security-Policy header is missing
Security gaps expose your site and users to attacks, eroding trust.
HSTS header is missing
Security gaps expose your site and users to attacks, eroding trust.
No Content-Security-Policy header found
Security gaps expose your site and users to attacks, eroding trust.
1 link(s) with no accessible text
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
11 image-in-link without alt text
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
High impact, low effort — start here.
High impact, requires investment.
Small gains, minimal effort.
Nothing in this quadrant — good news.
Low impact, high effort — do last.
Nothing in this quadrant — good news.
[](https://beavercheck.com/results/9b87abc0-b81e-4ad6-a7e0-3d0780a32f58)<a href="https://beavercheck.com/results/9b87abc0-b81e-4ad6-a7e0-3d0780a32f58"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fbaidu.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fbaidu.comThis badge auto-updates with your latest scan result.
Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. 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.
9 barrier(s) likely increasing bounce by ~39%.
Page takes 5.7s to load
+12% bounceUsers abandon at ~3s — you're 3.2s over the 2.5s threshold
Fix: Optimize render-blocking resources, preload the hero image, and compress images
No HSTS header
+1% bounceReturning 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% bounceHigher XSS blast radius — one compromised script can exfiltrate the checkout form
Fix: Ship a reporting-only CSP first, then enforce once violations are clean
4 form field(s) without a label
+6% bounceScreen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes
Fix: Associate every input with a visible <label for="…">; add autocomplete attributes
No viewport meta tag
+15% bounceMobile browsers render at desktop width and shrink — text unreadable, tap targets miniature
Fix: Add <meta name="viewport" content="width=device-width, initial-scale=1">
No Open Graph tags
+2% bounceLinks 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% bounceNo 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, …)
No skip-to-content link
+1% bounceKeyboard 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
3 broken link(s) on the page
+5% bounceClicks 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.
¥1,575 investment → ¥16,007/month returns + CNY 50,000,000 risk avoided
¥1,575
4h · 5 findings
¥16,007 /mo
~¥192,085 / year
CNY 50,000,000
if kept compliant
¥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.
4.5 developer hours at ¥350/hr
Based on China rates (¥350/hr)
Start here for the best return on investment
¥4,166,668 / month at risk
~¥50,000,017 / year if left unfixed
¥50,000,000
+1 more
¥1.39 /mo
2427.9 MB/mo × 0.571 CNY/GB
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.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
Fix 5 critical issues to capture this value
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
Your data stays in your browser — nothing is sent to our servers
Thanks for your feedback!
We'll use a cached audit if available, or offer to scan.
Industry-standard audits powered by Google Lighthouse.
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.
5.01 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.72 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
12 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.014
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
9.78 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.
9.60 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
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.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Est Savings |
|---|---|
| ms.bdstatic.com/se/wiseindex/head/wise/static/nicons/n-icons-00ee3b10.woff | 665 ms |
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
div#userinfo-wrap > div.result-molecule > div.square-bubble-entrance > img.square-bubble-dynamic div#userinfo-wrap > div.result-molecule > div.square-bubble-entrance > img.square-bubble-dynamic | search-operate.cdn.bcebos.com/6c727ddb2cd9103e2b271f0e4c33bbeb.gif | 72.2 KiB | 47.7 KiB |
head_icon div.aside-header-and-padding-bottom > div.asideheader > div.user-info > img.head-icon | /se/static/indexatom/personalcenter/assets/img/default_ic... | 23.8 KiB | 22.0 KiB |
百度一下,你就知道 div.result-molecule > div#logo > a.index_logo-wrap__J7H-U > img#wiseindex-bdlogo | psstatic.cdn.bcebos.com/basics/2025_wiseindex/wiseindex-logo_1756889417000.png | 24.6 KiB | 19.5 KiB |
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| psstatic.cdn.bcebos.com/basics/2025_wiseglobal/esl_1758513732000.ts | 21.9 KiB | 1.7 s |
| ms.bdstatic.com/se/wiseindex/head/wise/static/js/base/index-a398d05c.js | 13.4 KiB | 351 ms |
| ms.bdstatic.com/se/wiseindex/base-script/wise/static/index-fda1a248.js | 1.9 KiB | |
| ms.bdstatic.com/se/wiseindex/head/wise/static/css/index-cb86-77ac99e2.css | 6.7 KiB | 1.4 s |
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| search-operate.cdn.bcebos.com/6c727ddb2cd9103e2b271f0e4c33bbeb.gif | 52766.0 s | 72.9 KiB |
| s.bdstatic.com/common/openjs/openBox.js?_v=2026-04-16-17 | 3600.0 s | 12.3 KiB |
| s.bdstatic.com/common/openjs/openBox.js?_v=2026416 | 3600.0 s | 12.3 KiB |
| sv.bdstatic.com/static/fecommon/growth/release/core.js?_sv=2026041617 | 1209600.0 s | 24.6 KiB |
| /tc?tcreq4log=1&r=1776358838429&logid=1288747300822659446... | 0.0 ms | 430 B |
| /tc?tcreq4log=1&r=1776358841054&logid=1288747300822659446... | 0.0 ms | 336 B |
| /tc?tcreq4log=1&r=1776358841058&logid=1288747300822659446... | 0.0 ms | 336 B |
| /it/u=1538419461,3591049189&fm=3028&app=3028&f=PNG&fmt=au... | 1179808.0 s | 954 B |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| baidu.com/ | 1.4 s |
| www.baidu.com/ | 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.
Performance issues directly impact user engagement and conversion rates.
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
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| The page has an unload handler in the main frame. | Actionable |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| sv.bdstatic.com/static/fecommon/growth/release/core.js?_sv=2026041617 | 24.2 KiB | 11.6 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| .tab_news{text-align:left;background:#fff} … | 14.2 KiB | 14.1 KiB |
| ms.bdstatic.com/se/wiseindex/search-box/wise/static/global-cb86-3792fc16.css | 13.8 KiB | 11.7 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.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
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
| URL | Transfer Size | Est Savings |
|---|---|---|
| ms.bdstatic.com/se/wiseindex/amd_modules/@baidu/mcp-search/dist/index_4071ee4.js | 51.2 KiB | 39.1 KiB |
| /se/wiseindex/amd_modules/@baidu/wise-invoke-app/dist/amd... | 42.8 KiB | 27.9 KiB |
| ms.bdstatic.com/se/wiseindex/bottom-script/wise/static/lib/index-1447e5c2.js | 36.1 KiB | 21.8 KiB |
| ms.bdstatic.com/se/wiseindex/bottom-script/wise/static/start/index-d11791ce.js | 31.0 KiB | 21.3 KiB |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
百度一下,你就知道 div.result-molecule > div#logo > a.index_logo-wrap__J7H-U > img#wiseindex-bdlogo | psstatic.cdn.bcebos.com/basics/2025_wiseindex/wiseindex-logo_1756889417000.png |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
百度一下 form#index-form > div > div.con-wrap > button#index-bn |
使用百度前必读 Baidu 京ICP证030173号 div.result-molecule > div#bottom > div#foot > a#index-copyright |
京公网安备11000002000001号 div.result-molecule > div#bottom > div#foot > a.recordcode |
These are opportunities to improve the legibility of your content.
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.
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div#userinfo-wrap > div.result-molecule > div.square-bubble-entrance > img.square-bubble-dynamic div#userinfo-wrap > div.result-molecule > div.square-bubble-entrance > img.square-bubble-dynamic |
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
head > meta head > meta |
These items highlight common accessibility best practices.
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.
Performance issues directly impact user engagement and conversion rates.
| Insecure URL | Request Resolution |
|---|---|
| ?action=sendIntent&minver=7.4¶ms=%7B%22intent%22%3A%2... | Allowed |
| /?data=fCMxIzsjMi8xLzUjLSMyIzsjSlR5cW4yN2M5b2Y3cTIye3s1c3... | Allowed with warning |
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| Unload event listeners are deprecated and will be removed. | hm.baidu.com/hm.js?12423ecbc0e2ca965d84259063d35238 line 1, col 274 |
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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Failed to load resource: net::ERR_CONNECTION_REFUSED | |
Failed to load resource: the server responded with a status of 403 (Forbidden) | |
Failed to load resource: the server responded with a status of 403 (Forbidden) | |
Failed to load resource: the server responded with a status of 403 (Forbidden) |
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.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Mixed content |
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div#userinfo-wrap > div.result-molecule > div.square-bubble-entrance > img.square-bubble-dynamic div#userinfo-wrap > div.result-molecule > div.square-bubble-entrance > img.square-bubble-dynamic |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Industry-standard audits powered by Google Lighthouse. — Desktop
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.
3.03 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.21 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.61 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.87 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.
7.93 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
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.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| pss.bdstatic.com/r/www/static/font/cosmic/pc/cos-icon_20cec29.css | 4.1 KiB | 743 ms |
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| hectorstatic.baidu.com/cd37ed75a9387c5b.js | 3600.0 s | 31.4 KiB |
| hectorstatic.baidu.com/96c9c06653ba892e.js | 3600.0 s | 27.1 KiB |
| /passApi/js/wrapper.js?cdnversion=1776358863982&_=1776358... | 0.0 ms | 7.2 KiB |
| /it/u=1627277417,3307578141&fm=3028&app=3028&f=PNG&fmt=au... | 1611857.0 s | 48.4 KiB |
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
div.s_form > div.s_form_wrapper > div#lg > img#s_lg_img div.s_form > div.s_form_wrapper > div#lg > img#s_lg_img | www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png | 15.1 KiB | 11.3 KiB |
div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img | psstatic.cdn.bcebos.com/aife/static/wenxinlogo_1770695621000.png | 6.9 KiB | 6.7 KiB |
div.s-hotsearch-title > a.hot-title > div.title-text > img.hot-title-icon div.s-hotsearch-title > a.hot-title > div.title-text > img.hot-title-icon | psstatic.cdn.bcebos.com/basics/aichat/hot_search_x3_1747880381000.png | 6.2 KiB | 6.0 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| baidu.com/ | 759 ms |
| www.baidu.com/ | 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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Other | 3.2 s |
| Script Evaluation | 1.3 s |
| Style & Layout | 73 ms |
| Script Parsing & Compilation | 71 ms |
| Parse HTML & CSS | 30 ms |
| Garbage Collection | 25 ms |
| Rendering | 17 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
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| The page has an unload handler in the main frame. | Actionable |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| pss.bdstatic.com/static/superman/amd_modules/@baidu/video-meeting-1be7f62dac.js | 50.0 KiB | 18.2 KiB |
| /r/www/cache/static/protocol/https/home/js/nu_instant_sea... | 14.4 KiB | 6.3 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| :root{--fixed-top-offset:78px} … | 22.5 KiB | 21.6 KiB |
| .chat-input-background_3edHa { position: relative; } … | 13.0 KiB | 11.5 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.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
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
| URL | Transfer Size | Est Savings |
|---|---|---|
| /r/www/cache/static/protocol/https/global/js/all_async_se... | 232.9 KiB | 179.3 KiB |
| pss.bdstatic.com/static/superman-san/app/chat-input/result_ad43ead.js | 115.8 KiB | 60.2 KiB |
| /r/www/cache/static/protocol/https/amd_modules/@baidu/gua... | 39.2 KiB | 24.9 KiB |
| pss.bdstatic.com/static/superman/amd_modules/@baidu/video-meeting-1be7f62dac.js | 49.6 KiB | 24.1 KiB |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img | psstatic.cdn.bcebos.com/aife/static/wenxinlogo_1770695621000.png |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.chat-input-d-tooltip > div.tooltip-wrapper > div > div div.chat-input-d-tooltip > div.tooltip-wrapper > div > div |
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.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
登录 div#head > div.s_top_container > div#u1 > a#s-top-loginbtn |
换一换 div#s-hotsearch-wrapper > div.s-hotsearch-title > a#hotsearch-refresh-btn > span.hot-refresh-text |
关于百度 div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
About Baidu div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
使用百度前必读 div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
帮助中心 div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
企业推广 div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
京公网安备11000002000001号 div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
京ICP证030173号 div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
互联网新闻信息服务许可证11220180008 div#bottom_layer > div.s-bottom-layer-content > p.lh > span.text-color |
网络文化经营许可证： 京网文〔2023〕1034-029号 div#bottom_layer > div.s-bottom-layer-content > p.lh > span.text-color |
信息网络传播视听节目许可证 0110516 div#bottom_layer > div.s-bottom-layer-content > p.lh > a.text-color |
These are opportunities to improve the legibility of your content.
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.
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.s_form > div.s_form_wrapper > div#lg > img#s_lg_img div.s_form > div.s_form_wrapper > div#lg > img#s_lg_img |
div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img |
div#s_top_feed > div.top-feed-body > div.to-top > img#up-top div#s_top_feed > div.top-feed-body > div.to-top > img#up-top |
div#s_side_wrapper > div#s_qrcode_nologin > div.qrcode-layer > img.icon div#s_side_wrapper > div#s_qrcode_nologin > div.qrcode-layer > img.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.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html html |
These items highlight common accessibility best practices.
Preventing input pasting is a bad practice for the UX, and weakens security by blocking password managers.Learn more about user-friendly input fields.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.chat-input-wrapper > div.chat-input-container > div#chat-input-area > textarea#chat-textarea div.chat-input-wrapper > div.chat-input-container > div#chat-input-area > textarea#chat-textarea |
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| SharedStorage | |
| Unload event listeners are deprecated and will be removed. | pss.bdstatic.com/static/superman/js/lib/jquery-1-edb203c114.10.2.js line 138, col 305 |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge |
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.s_form > div.s_form_wrapper > div#lg > img#s_lg_img div.s_form > div.s_form_wrapper > div#lg > img#s_lg_img |
div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img div.panel-list_8jHmm > div.panel-sample_xVtAM > a.guide-bub-container_2skZT > img |
div#s_top_feed > div.top-feed-body > div.to-top > img#up-top div#s_top_feed > div.top-feed-body > div.to-top > img#up-top |
div#s_side_wrapper > div#s_qrcode_nologin > div.qrcode-layer > img.icon div#s_side_wrapper > div#s_qrcode_nologin > div.qrcode-layer > img.icon |
Format your HTML in a way that enables crawlers to better understand your app’s content.
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