United States · Santa Clara Completed: Apr 21, 2026 19:34 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 67 / 100
Based on 8 categories, 0 sections
Decent speed, but optimizing further could improve engagement.
Several missing protections leave your users and data exposed.
Major barriers for users with disabilities — up to 15% of your audience.
Solid SEO basics — a few optimizations could boost rankings.
Good server performance with room for optimization.
Several regulatory requirements are not yet met.
Missing metadata means poor previews on social media and search.
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.
No Content-Security-Policy header found
Security gaps expose your site and users to attacks, eroding trust.
1 control(s) without accessible label
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
14 button(s) with no accessible text
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
16 link(s) with no accessible 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/a065c977-461c-425d-bd19-0ce04ec49ce6)<a href="https://beavercheck.com/results/a065c977-461c-425d-bd19-0ce04ec49ce6"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fcsdn.net" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fcsdn.netThis badge auto-updates with your latest scan result.
Your site has several issues that may be affecting user experience and business outcomes. 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.
11 barrier(s) likely increasing bounce by ~32%.
Page takes 6.8s to load
+12% bounceUsers abandon at ~3s — you're 4.3s over the 2.5s threshold
Fix: Optimize render-blocking resources, preload the hero image, and compress images
High main-thread blocking time
+2% bouncePage is non-interactive for 326ms after first paint
Fix: Defer third-party scripts and split large bundles
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
1 form field(s) without a label
+2% 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
Viewport disables user zoom
+2% bounceVisitors with low vision can't read the page — and some jurisdictions treat this as a legal risk
Fix: Remove user-scalable=no; drop maximum-scale if it's below 2
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, …)
16 link(s) with generic text ("click here", "read more")
+1% bounceScreen-reader users navigating by link list see no context — and search engines can't infer relevance
Fix: Rewrite with descriptive phrases that identify the destination
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
55 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.
¥1,925 investment → ¥18,941/month returns + CNY 50,000,000 risk avoided
¥1,925
6h · 5 findings
¥18,941 /mo
~¥227,288 / year
CNY 50,000,000
if kept compliant
¥350 — 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.
5.5 developer hours at ¥350/hr
Based on China rates (¥350/hr)
Start here for the best return on investment
¥4,166,670 / month at risk
~¥50,000,035 / year if left unfixed
¥50,000,000
+1 more
¥2.93 /mo
5135.6 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.
5.35 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.76 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
326 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.040
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.93 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.
9.15 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.
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.
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.
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 |
|---|---|---|
| g.csdnimg.cn/??lib/jquery/1.12.4/jquery.min.js | 33.2 KiB | 1.1 s |
| g.csdnimg.cn/user-ordercart/2.0.1/user-ordercart.js | 2.8 KiB | |
| g.csdnimg.cn/??debug/1.0.0/debug.js | 1.1 KiB | |
| csdnimg.cn/release/cmsfe/public/css/tpl/www-index-new-m/index.493dc5e9.css | 4.6 KiB | |
| csdnimg.cn/release/cmsfe/public/css/common.ef7517d8.css | 110.4 KiB | 1.5 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.
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.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image | /direct/26d91d6fab8f40309cf58fc34c59f496.png?x-oss-proces... | 129.2 KiB | 117.6 KiB |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image | /direct/e8c93f090a124767bb608c0ef1695a1b.png?x-oss-proces... | 126.5 KiB | 114.9 KiB |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image | /direct/e834825aac9d4571891680915aee9cfc.png?x-oss-proces... | 124.3 KiB | 112.7 KiB |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image | /direct/9a46fb687a5d46859f3fc9b41e965823.png?x-oss-proces... | 120.6 KiB | 109.0 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/723ae03ce6774c898444db37d09d2693_taotiezhengfeng.jpg!1 | 73.8 KiB | 73.6 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/edafa15aa66b46e6baffcf8567d7ba7a_qq_29132907.jpg!1 | 67.0 KiB | 66.8 KiB |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image | /direct/f531d2e356b34b9589ffa95fa3b9b573.png?x-oss-proces... | 77.3 KiB | 65.7 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | i-avatar.csdnimg.cn/a0484c941a5e47e6909270a3a842e7c5_2401_84643729.jpg!1 | 50.8 KiB | 50.6 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | i-avatar.csdnimg.cn/c39a926b885a49e1a1fa7fdcaeb14501_Gr419627.jpg!1 | 43.9 KiB | 43.7 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/decf265c71064decb4106e78550ae2a0_qq_73478334.jpg!1 | 42.2 KiB | 42.0 KiB |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image | /direct/e3f7fba30edd4c609ceba055bfe04dc0.png?x-oss-proces... | 45.1 KiB | 33.5 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | i-avatar.csdnimg.cn/7f7026888a4f4180a548c7433fcedca8_lxttzlove.jpg!1 | 18.7 KiB | 18.5 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/default.jpg!1 | 16.1 KiB | 15.9 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | i-avatar.csdnimg.cn/be4203913fad41c582ef0704e56baf64_user340.jpg!1 | 14.7 KiB | 14.5 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | i-avatar.csdnimg.cn/458fa65e7261431b8599d0c12475bdc8_qq_40303030.jpg!1 | 14.1 KiB | 13.9 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/1257089e0ca34de5a8856f70e8c3b6f3_m0_57476762.jpg!1 | 12.7 KiB | 12.5 KiB |
div.content-default > p > img div.content-default > p > img | csdnimg.cn/release/cmsfe/public/img/content-default.e5ec1ba1.png | 17.6 KiB | 11.6 KiB |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image | /direct/9e28e3619a224e1d8b15ce76ffb961b8.png?x-oss-proces... | 18.9 KiB | 7.3 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/dbcf5391f8ce410296cebed6cfd4bce7_fysuccess.jpg!1 | 6.8 KiB | 6.6 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/777c77dbbd294bf29a1f75f2aa193884_weixin_43989195.jpg!1 | 6.7 KiB | 6.5 KiB |
div.csdn-toolbar-box > div.mToolbarL > a.logo > img.logo div.csdn-toolbar-box > div.mToolbarL > a.logo > img.logo | img-home.csdnimg.cn/images/20201125103341.png | 6.3 KiB | 5.8 KiB |
div.blog-recom-item > div.recom-header > a.portrait > img div.blog-recom-item > div.recom-header > a.portrait > img | profile-avatar.csdnimg.cn/e32271a985d74bc2b1fbdea93a777602_weixin_61971601.jpg!1 | 5.4 KiB | 5.2 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 |
|---|---|
| csdn.net/ | 1.4 s |
| www.csdn.net/ | 0.0 ms |
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| www.csdn.net/ | 605 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.
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.
Performance issues directly impact user engagement and conversion rates.
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 |
|---|---|---|
| csdnimg.cn/release/cmsfe/public/css/common.ef7517d8.css | 110.0 KiB | 109.5 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 |
|---|---|---|
| csdnimg.cn/release/cmsfe/public/js/chunk/common.3603c287.js | 227.3 KiB | 161.4 KiB |
| csdnimg.cn/release/cmsfe/public/js/chunk/tpl/www-index-new-m/index.58b3b1ef.js | 63.8 KiB | 31.6 KiB |
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 927 ms |
| Style & Layout | 715 ms |
| Other | 682 ms |
| Script Parsing & Compilation | 218 ms |
| Rendering | 135 ms |
| Parse HTML & CSS | 101 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 |
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.
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.
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to make command elements more accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.van-dropdown > div.van-dropdown-menu > div.van-dropdown-menu__bar > div.van-dropdown-menu__item div.van-dropdown > div.van-dropdown-menu > div.van-dropdown-menu__bar > div.van-dropdown-menu__item |
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 |
|---|
关注 div#floor-content_885 > div.floor-blog-content > div.blog-cont-type > p |
资讯 div#floor-content_885 > div.floor-blog-content > div.blog-cont-type > p |
热榜 div#floor-content_885 > div.floor-blog-content > div.blog-cont-type > p |
动态 div#floor-content_885 > div.floor-blog-content > div.blog-cont-type > p |
有红包 div#floor-content_885 > div.floor-blog-content > div.blog-cont-type > p |
601阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
381阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
207阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
66阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
77阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
601阅读 · 20评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
701阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
108阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
234阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
393阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
439阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
77阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
339阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
201阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
205阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
10阅读 · 3回答 div.blog-recom-item > div.recom-content > dl > dd.desc |
1530阅读 · 59评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
312阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
191阅读 · 0评论 div.blog-recom-item > div.recom-content > dl > dd.desc |
These are opportunities to improve the legibility of your content.
When definition lists are not properly marked up, screen readers may produce confusing or inaccurate output. Learn how to structure definition lists correctly.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
实测文心大模型X1与文心大模型4.5，我们发现了这些惊喜
3月16日，百度文心大模型4.5如约正式上线，还惊喜发布了另一款新模型——文心大模型X1。 div.hot-item > div.hot-content > a.top > dl |
华为PC全面转鸿蒙
开发者称Cursor拒绝帮写代码| 极客头条 div.hot-item > div.hot-content > a.top > dl |
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
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.csdn-toolbar-box > div.mToolbarL > a.logo > img.logo div.csdn-toolbar-box > div.mToolbarL > a.logo > img.logo |
div.csdn-toolbar-box > div.rightmenu > div.toolbarBack > img#mToolbarHome div.csdn-toolbar-box > div.rightmenu > div.toolbarBack > img#mToolbarHome |
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image div.blog-cont-cont > div.blog-recom-item > div.recom-content > a.image |
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 |
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.
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. |
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.csdn-toolbar-box > div.mToolbarL > a.logo > img.logo div.csdn-toolbar-box > div.mToolbarL > a.logo > img.logo |
div.csdn-toolbar-box > div.rightmenu > div.toolbarBack > img#mToolbarHome div.csdn-toolbar-box > div.rightmenu > div.toolbarBack > img#mToolbarHome |
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.
3.49 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.92 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
107 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.006
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.11 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.
7.06 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.
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.
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.
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.
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
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
div.home-info > div.home-info-banner > a#banner-box > div.banner-img div.home-info > div.home-info-banner > a#banner-box > div.banner-img | i-operation.csdnimg.cn/images/6f10b29cde7748a7902915ecdcefbd2c.png | 980.8 KiB | 857.5 KiB |
div.home-info > div.home-info-banner > a#banner-box > div.banner-img div.home-info > div.home-info-banner > a#banner-box > div.banner-img | i-operation.csdnimg.cn/images/d53798e1496a44c4ada99e647405a497.png | 924.6 KiB | 819.5 KiB |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/ad/ad_pic/e656fa16652048d381a8168b62bc4b6a.png | 770.8 KiB | 759.7 KiB |
div.home-info > div.home-info-banner > a#banner-box > div.banner-img div.home-info > div.home-info-banner > a#banner-box > div.banner-img | i-operation.csdnimg.cn/images/9844231d768b457b87624ca87e1896b6.png | 596.6 KiB | 495.0 KiB |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/ad/ad_pic/d851ad0cd0954b8da491357ca0a5ed33.png | 439.3 KiB | 428.2 KiB |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/ad/ad_pic/6fc0d4eef96f4400bc834f36a9c3fa5a.jpeg | 452.8 KiB | 421.7 KiB |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/ad/ad_pic/314e3d97d59e428d99ea7a954e27acd8.jpeg | 193.7 KiB | 182.6 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/0ba34ac20b464f08a9efa3cf651dcdfa.png?x-oss-proces... | 189.0 KiB | 177.4 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/5528809b2bfb4acda6084cc806ce165e.png?x-oss-proces... | 174.6 KiB | 163.1 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/3aad4a9c15bd47edbf489815834bbe12.png?x-oss-proces... | 152.2 KiB | 140.6 KiB |
div.home-info > div.home-info-banner > a#banner-box > img div.home-info > div.home-info-banner > a#banner-box > img | img-home.csdnimg.cn/images/20241216100640.jpg | 172.6 KiB | 139.5 KiB |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230306070808940.jpg | 131.1 KiB | 130.6 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/35d67e0e9ad442c097cf7ce2cf35e7d6.png?x-oss-proces... | 140.7 KiB | 129.1 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/f09bd6a71b194f1a92951ab0ebdc491e.png?x-oss-proces... | 139.3 KiB | 127.7 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/aea65e159fc44b8693d1c05d98d5eb34.png?x-oss-proces... | 128.0 KiB | 116.4 KiB |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230306064258203.jpg | 107.2 KiB | 106.5 KiB |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230310013332272.jpg | 86.0 KiB | 85.3 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/e06c68b31cb54fad9af33da1d55c1bba_qq_45546772.jpg!1 | 84.1 KiB | 84.1 KiB |
div.home-info > div.home-info-banner > a#banner-box > div.banner-img div.home-info > div.home-info-banner > a#banner-box > div.banner-img | i-blog.csdnimg.cn/direct/02120f245c704e9a87162bc665d838ef.png | 89.4 KiB | 77.8 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/12ca8ea42b05465c8522f380b4d3f722.png?x-oss-proces... | 88.0 KiB | 76.5 KiB |
div.toolbar-btn > div.csdn-toolbar-creative-mp > a > img div.toolbar-btn > div.csdn-toolbar-creative-mp > a > img | i-operation.csdnimg.cn/images/6e41bd372d1f4ec39b3cd36ab95046c4.png | 78.9 KiB | 74.9 KiB |
div.ContentBlock > div.ContentBlockItem > div.top > img.left div.ContentBlock > div.ContentBlockItem > div.top > img.left | img-home.csdnimg.cn/images/20240118105844.jpg | 72.2 KiB | 72.1 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/ff94cface9db4518829cfbc6d78d9106.png?x-oss-proces... | 83.0 KiB | 71.4 KiB |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230310014808316.jpg | 69.3 KiB | 68.9 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/bb8ad0692c2547fbae8f00d6d5fe79b0_m0_71444338.jpg!1 | 67.7 KiB | 67.6 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/cfc85100274040cf86eae822e6cd914f_2401_83127407.jpg!1 | 60.5 KiB | 60.4 KiB |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230209093821579.jpg | 58.4 KiB | 58.1 KiB |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230209093835884.jpg | 57.0 KiB | 56.5 KiB |
div.ContentBlock > div.ContentBlockItem > div.top > img.left div.ContentBlock > div.ContentBlockItem > div.top > img.left | img-home.csdnimg.cn/images/20250512034618.png | 51.1 KiB | 50.9 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/3ce9cb5a245f4eaa97c5e976d85acfee_m0_66434421.jpg!1 | 50.2 KiB | 50.2 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/4f23dd8c66f945bd9fd39a894a0f4956_jackxiaochen.jpg!1 | 49.8 KiB | 49.7 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/48a781568e9444168841594019270411_no1coder.jpg!1 | 45.3 KiB | 45.3 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/e793aaad88df428fb134bad817dcfee4_TwoCat_C.jpg!1 | 44.2 KiB | 44.2 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/aa5dce552cfb44c181a939bfc2de62db_weixin_39789918.jpg!1 | 44.2 KiB | 44.1 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/a797880fb4d74c00a2c0616e4e0c8e43_fghyibib.jpg!1 | 41.9 KiB | 41.9 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/2f10957635a446cebdba3d48b13544ad_mdx3SaX3T.jpg!1 | 41.2 KiB | 41.2 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/2c25b75b4d3e4a45a772979ce2ed3204_m0_59777389.jpg!1 | 41.0 KiB | 40.9 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/01d17d01c0b64e1c899440f283b714f0_weixin_41908519.jpg!1 | 40.6 KiB | 40.5 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/2d87718a0b204bc9af02e5a94c214a53_dreamy_zsy.jpg!1 | 40.4 KiB | 40.3 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/34633bfb99aa476798084c39c2d56639.png?x-oss-proces... | 50.4 KiB | 38.8 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/7528a9955f874d84b81b86e37ac801d0_xin_yao_xin.jpg!1 | 36.3 KiB | 36.2 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/713b78d49ccd47d6983f33b5d0a38330_qq_28421487.jpg!1 | 36.2 KiB | 36.2 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/f462c249275f4fe8ad3f2ffbb9859731_IOT5570.jpg!1 | 35.7 KiB | 35.6 KiB |
div.ContentBlock > div.ContentBlockItem > div.top > img.left div.ContentBlock > div.ContentBlockItem > div.top > img.left | img-home.csdnimg.cn/images/20251229014546.png | 35.5 KiB | 35.4 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/b277af45318d4611b91ae40b1deb94fc_qq_41797451.jpg!1 | 34.7 KiB | 34.7 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/82cc274375f84f3f971b30290679ad3f.png?x-oss-proces... | 45.0 KiB | 33.4 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/98237793ead34cb5b103295abe33b67b.png?x-oss-proces... | 44.7 KiB | 33.1 KiB |
div.ContentBlock > div.ContentBlockItem > div.top > img.left div.ContentBlock > div.ContentBlockItem > div.top > img.left | img-home.csdnimg.cn/images/20250211044429.png | 32.7 KiB | 32.5 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/13c52b9b265e4146a55ed12c543b32d4.png?x-oss-proces... | 41.4 KiB | 29.8 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/51603baf8aab4f26b69b682072a30d4b.png?x-oss-proces... | 36.4 KiB | 24.8 KiB |
div.ContentBlock > div.ContentBlockItem > div.top > img.left div.ContentBlock > div.ContentBlockItem > div.top > img.left | img-home.csdnimg.cn/images/20250924103813.png | 22.4 KiB | 22.4 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/b6a97467b771425eb1836d97428ae5b4_weixin_37800531.jpg!1 | 20.2 KiB | 20.1 KiB |
div.ContentBlock > div.ContentBlockItem > div.top > img.left div.ContentBlock > div.ContentBlockItem > div.top > img.left | img-home.csdnimg.cn/images/20250211044156.png | 20.0 KiB | 20.0 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/0c72270df333452fb500e4750bcdea8e.jpg!1 | 19.7 KiB | 19.6 KiB |
div.el-carousel__container > div.el-carousel__item > a.project-item > div.project-banner div.el-carousel__container > div.el-carousel__item > a.project-item > div.project-banner | i-blog.csdnimg.cn/direct/5d17699311844ad8b1307330e2ed5c18.png | 28.0 KiB | 16.4 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | profile-avatar.csdnimg.cn/default.jpg!1 | 16.1 KiB | 16.1 KiB |
div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner div.article-item > div.article-item-cont > a.artivle-item-right > div.back-img-banner | /direct/a49568f15807427795399e257f23cfd5.png?x-oss-proces... | 21.8 KiB | 10.2 KiB |
div.toolbar-container-left > div.toolbar-logo > a > img div.toolbar-container-left > div.toolbar-logo > a > img | img-home.csdnimg.cn/images/20201124032511.png | 7.7 KiB | 7.2 KiB |
div.el-carousel__container > div.el-carousel__item > a.project-item > div.project-banner div.el-carousel__container > div.el-carousel__item > a.project-item > div.project-banner | cdn-news.gitcode.com/news/csdn-pic-19.png | 20.4 KiB | 5.7 KiB |
新客开通会员 立减60 div.toolbar-btn > div#csdn-toolbar-profile-nologin > div.csdn-toolbar-by-box > a.csdn-toolbar-by | i-operation.csdnimg.cn/images/f4277e752ed14e15b6a7386f80c4c76e.png | 6.8 KiB | 5.6 KiB |
div.article-item-box > div.article-item > a.user-info > img div.article-item-box > div.article-item > a.user-info > img | i-avatar.csdnimg.cn/9e0eac2471094aaeaec6387f831c3b93_Cathyguu.jpg!1 | 5.6 KiB | 5.5 KiB |
div.toolbar-container-mini-middle > div.toolbar-search > div.toolbar-search-container > span.icon-fire div.toolbar-container-mini-middle > div.toolbar-search > div.toolbar-search-container > span.icon-fire | img-home.csdnimg.cn/images/20201218055848.png | 8.1 KiB | 5.1 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.
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 |
|---|---|
| csdnimg.cn/release/cmsfe/public/font/element-icons.535877f5.woff | 20 ms |
HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| csdn.net/ | 930 ms |
| www.csdn.net/ | 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.
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 |
|---|---|---|
| csdnimg.cn/release/cmsfe/public/css/common.188d97b8.css | 50.2 KiB | 48.6 KiB |
| g.csdnimg.cn/common/csdn-toolbar/csdn-toolbar-default.css | 13.4 KiB | 12.0 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 |
|---|---|---|
| csdnimg.cn/release/cmsfe/public/js/chunk/common.88e6eac5.js | 218.1 KiB | 127.6 KiB |
| g.csdnimg.cn/common/csdn-toolbar/csdn-toolbar.js?v=1716884627340 | 44.2 KiB | 33.7 KiB |
| /??lib/jquery/1.12.4/jquery.min.js,user-tooltip/2.7/user-... | 43.0 KiB | 20.8 KiB |
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 |
|---|---|
| Script Evaluation | 726 ms |
| Style & Layout | 671 ms |
| Other | 547 ms |
| Rendering | 120 ms |
| Script Parsing & Compilation | 90 ms |
| Parse HTML & CSS | 72 ms |
| Garbage Collection | 4.3 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 |
| The page has an unload handler in a sub frame. | Actionable |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
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.home-info > div.home-info-banner > a#banner-box > img div.home-info > div.home-info-banner > a#banner-box > img | img-home.csdnimg.cn/images/20241216100640.jpg |
div.home-info > div.home-info-banner > a#banner-box > img div.home-info > div.home-info-banner > a#banner-box > img | img-home.csdnimg.cn/images/20241216100640.jpg |
div.home-info > div.home-info-banner > a#banner-box > img div.home-info > div.home-info-banner > a#banner-box > img | img-home.csdnimg.cn/images/20241216100640.jpg |
div.home-info > div.home-info-banner > a#banner-box > img div.home-info > div.home-info-banner > a#banner-box > img | img-home.csdnimg.cn/images/20241216100640.jpg |
div.layout-sidebar > div.layout-logo > a > img div.layout-sidebar > div.layout-logo > a > img | img-home.csdnimg.cn/images/20201124032511.png |
div > div.csdn-side-toolbar > a.option-box > img div > div.csdn-side-toolbar > a.option-box > img | g.csdnimg.cn/side-toolbar/3.4/images/qr.png |
div > div.csdn-side-toolbar > a.option-box > img div > div.csdn-side-toolbar > a.option-box > img | g.csdnimg.cn/side-toolbar/3.4/images/fanhuidingbucopy.png |
div.toolbar-btns > div.toolbar-btn > a > img div.toolbar-btns > div.toolbar-btn > a > img | i-operation.csdnimg.cn/images/105eda9d414f4250a7c3fe45be3cd15f.png |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_extra > img.extra-image a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_extra > img.extra-image | i-operation.csdnimg.cn/images/2a0fd0811b8248e49d3d320e0dde5d06.png |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_extra > img.extra-image a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_extra > img.extra-image | i-operation.csdnimg.cn/images/4432e274ff494f5399a0439638314d82.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/8efd18d5d7054f77a81294a14cd80ad5.png |
div.article-bottom > div.operation-b > p.operation-b-img > img div.article-bottom > div.operation-b > p.operation-b-img > img | i-operation.csdnimg.cn/images/e00b069b260c430da8547524b0c3b084.png |
div.article-bottom > div.operation-b > a.operation-b-img > img div.article-bottom > div.operation-b > a.operation-b-img > img | i-operation.csdnimg.cn/images/519fd335c5d9433da31373064cf2c97b.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.
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.home-project-cont-swiper > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
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 |
|---|
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
div > div.menus-view > div.menus-view_next > img div > div.menus-view > div.menus-view_next > img |
div.ad_fullWidth > div.ad-wrap > div#kp_box_986 > img.pre-img-lasy div.ad_fullWidth > div.ad-wrap > div#kp_box_986 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_585 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_585 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_588 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_588 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_589 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_589 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_590 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_590 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_591 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_591 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_592 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_592 > img.pre-img-lasy |
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.ad_fullWidth > div.ad-wrap > div#kp_box_986 > iframe div.ad_fullWidth > div.ad-wrap > div#kp_box_986 > iframe |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_585 > iframe div.el-carousel__item > div.carousel_item_iframe > div#kp_box_585 > iframe |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_588 > iframe div.el-carousel__item > div.carousel_item_iframe > div#kp_box_588 > iframe |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_589 > iframe div.el-carousel__item > div.carousel_item_iframe > div#kp_box_589 > iframe |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_590 > iframe div.el-carousel__item > div.carousel_item_iframe > div#kp_box_590 > iframe |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_591 > iframe div.el-carousel__item > div.carousel_item_iframe > div#kp_box_591 > iframe |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_592 > iframe div.el-carousel__item > div.carousel_item_iframe > div#kp_box_592 > 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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right div.article-item-box > div.article-item > div.article-item-cont > a.artivle-item-right |
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.
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 |
|---|
搜索 div.toolbar-search > div.toolbar-search-container > button#toolbar-search-button > span |
会员·新人礼包 div.toolbar-container-right > div.toolbar-btns > div.toolbar-btn > a |
联系我们 div.layout-menus—footer > div.csdnside-copyright-footer > div.csdnside-copyright-footer-contact > div.work-time |
工作时间: 8:30 - 22:00 div.layout-menus—footer > div.csdnside-copyright-footer > div.csdnside-copyright-footer-contact > div.work-time |
客服电话: 400-660-0108 div.layout-menus—footer > div.csdnside-copyright-footer > div.csdnside-copyright-footer-contact > div.work-time |
kefu@csdn.net div.csdnside-copyright-footer > div.csdnside-copyright-footer-contact > div.work-time-btn > a.link |
在线客服 div.csdnside-copyright-footer > div.csdnside-copyright-footer-contact > div.work-time-btn > a.link |
更多资讯 div#home-content-box > div.home-info > div.home-cont-title > p |
更多开源项目 div#home-content-box > div.home-project > div.home-cont-title > a |
排行榜 div#home-content-box > div.home-article > div.home-cont-title > a |
不知道有没有和我当初一样的朋友，刚接触深度学习的时候，信心满满翻开《深度学习》花书，刚看了两章神经元，满页的偏导、矩阵乘法直接给我干懵了。合上书脑子里就一个想… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 2.1k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
60赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 60 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
Product Hunt 每日热榜 | 2026-04-11 通过消息API，将Opus作为顾问与Sonnet或Haiku作为执行者配对，为开发者创建人工智能… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 2.7k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
7赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 7 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
任务类型关键指标核心关注点分类任务准确率总体正确率（类别平衡时）精确率减少误报（FP）召回率减少漏报（FN）F1-Score精确率与召回率的平衡（类别不平衡时… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 2.2k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
18赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 15 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
阿里巴巴发布新一代旗舰模型Qwen3.6-Plus，具备100万token超长上下文、领先的Agentic Coding能力和原生多模态理解三大亮点。该模型采… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 6.7k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
13赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 7 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
ax2.scatter(sales_2022, y_pos, s=120, color='#4C72B0', alpha=0.9, label='2022年'… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 84 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
0赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 0 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
知识图谱是以图结构形式描述客观世界概念、实体及其关系的语义网络，由节点（实体/概念）和边（关系/属性）组成。其技术架构包含数据获取、信息抽取（实体/关系/属性… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 2.7k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
47赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 24 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
本文提供了腾讯WorkBuddy在Windows和macOS系统上的详细安装指南。内容涵盖安装前的系统要求、官方下载渠道，以及Windows和macOS的具体… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 2.4k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
7赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 8 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
中文语义就是检索增强生成，是一种。 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.5k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
39赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 7 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
Claude Code 安装与使用指南摘要 Claude Code是Anthropic推出的终端AI编程助手，支持代码编写、调试和项目分析。 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.5k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
14赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 14 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
十四五留下的规划空白——在"十四五规划纲要"和"2035 智能网联汽车技术路线图"里， div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.7k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
65赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 12 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
Cursor 3发布标志着AI编程进入多智能体协同时代，直接挑战Claude Code。新版本引入多Agent并行工作、云端离线运行、可视化设计模式等创新功能… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 2.5k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
45赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 10 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
内容：测试分类、白盒黑盒、等价类、边界值、单元/集成/系统测试。- 内容：著作权、专利、商标、标准分类、ISO9001、ITIL。- 内容：进程管理、线程、P… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.2k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
38赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 6 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
刚开始学Rust的时候，我对所有权的概念完全懵圈。什么是所有权？为什么要有所有权？这跟我之前学的其他语言完全不一样啊！所有权是Rust用来管理内存的一套规则，… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.2w div.article-bottom > div.operation-b > p.operation-b-img > span.num |
29赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 64 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
2026年充电桩市场迎来关键变革期，在"双碳"目标和智能化转型驱动下加速重构。政策红利持续释放，多地出台补贴政策推动规模化、智能化建设，要… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 2.4k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
76赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 7 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
int main()// new/delete 和 malloc/free最大区别是 new/delete对于【自定义类型】除了开空间还会调用构造函数和析构函… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 6.7k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
14赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 22 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
OpenClaw（小龙虾）Windows一键部署教程 本教程为零基础用户提供OpenClaw的快速部署指南。OpenClaw是一款本地运行的AI办公助手，支持… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.2k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
38赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 17 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
2026年4月，全球AI行业进入了一个密集的“信息释放期”。从OpenAI刷新商业史的融资纪录，到阿里千问登顶全球调用榜，再到Anthropic发布最新模型，… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 3.9k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
10赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 11 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
OpenClaw v2026.4.15 正式发布，版本号：OpenClaw v2026.4.15，发布时间：2026年4月16日，更新类型：功能重磅+安全增强… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.3k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
24赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 6 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
本文系统拆解了蓝牙HFP（Hands-Free Profile）的34个核心术语，将其划分为五大功能维度：设备角色类（AG/HF）、核心协议类（RFCOMM/… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1.1w div.article-bottom > div.operation-b > p.operation-b-img > span.num |
13赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 14 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
1.4、添加国内清华 Docker 镜像源（解决 SSL / 网络问题）1.3、添加 Docker 官方 GPG 密钥。1.6、安装最新版 Docker包。1… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 3k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
7赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 13 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
选择NOR还是NAND，根本上是应用需求与技术特性需要存储并直接执行代码、对随机读取延迟敏感、容量要求不大（<1Gb）时，选择NOR Flash。需要海量数据… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
阅读 1k div.article-bottom > div.operation-b > p.operation-b-img > span.num |
5赞 div.article-bottom > div.operation-b > p.operation-b-img > span.num |
收藏 3 div.article-bottom > div.operation-b > a.operation-b-img > span.num |
更多 div#www-home-silde > div.ContentBlock > div.compont-title > a |
更多 div#www-home-silde > div.broadcast > div.compont-title > a |
热度 366 a > div.content-text > p.live-box > span.text |
热度 5249 a > div.content-text > p.live-box > span.text |
热度 432 a > div.content-text > p.live-box > span.text |
热度 6318 a > div.content-text > p.live-box > span.text |
更多 div#www-home-silde > div.calendar > div.compont-title > a |
上海 div > div.calendar-content-item > a.calendar-title > i.icon_online |
法国巴黎 div > div.calendar-content-item > a.calendar-title > i.icon_online |
线上 div > div.calendar-content-item > a.calendar-title > i.icon_online |
上海 div > div.calendar-content-item > a.calendar-title > i.icon_online |
更多 div#www-home-silde > div.member > div.compont-title > a |
张中强 div.member-item > a > div.text > p.desc |
共 4.0 节 · 268.0万 人学习 div.member-item > a > div.text > p.desc |
韦东山 div.member-item > a > div.text > p.desc |
共 54.0 节 · 25.1万 人学习 div.member-item > a > div.text > p.desc |
张杨（老张头） div.member-item > a > div.text > p.desc |
共 40.0 节 · 23.1万 人学习 div.member-item > a > div.text > p.desc |
任亮 div.member-item > a > div.text > p.desc |
共 169.0 节 · 19.0万 人学习 div.member-item > a > div.text > p.desc |
佟刚 div.member-item > a > div.text > p.desc |
共 36.0 节 · 17.5万 人学习 div.member-item > a > div.text > p.desc |
刘道成（燕十八） div.member-item > a > div.text > p.desc |
共 57.0 节 · 17.1万 人学习 div.member-item > a > div.text > p.desc |
These are opportunities to improve the legibility of your content.
Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
全部
资讯
OpenClaw
DeepSeek
MCP
运维
操作系统
人工智能
Java
C++
Python
数据结构与算法
前端… div > div.menus-view > div.menus-view_content > ul.menus-view_content—inner |
These are opportunities to improve the experience of reading tabular or list data using 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 |
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
新手入门不迷路：我花一周整理的神经网络工作原理通俗笔记，看完就能懂 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
不知道有没有和我当初一样的朋友，刚接触深度学习的时候，信心满满翻开《深度学习》花书，刚看了两章神经元，满页的偏导、矩阵乘法直接给我干懵了。合上书脑子里就一个想… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
Product Hunt 每日热榜 | 2026-04-11 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
Product Hunt 每日热榜 | 2026-04-11 通过消息API，将Opus作为顾问与Sonnet或Haiku作为执行者配对，为开发者创建人工智能… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
模型的评价指标（分类+回归） div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
任务类型关键指标核心关注点分类任务准确率总体正确率（类别平衡时）精确率减少误报（FP）召回率减少漏报（FN）F1-Score精确率与召回率的平衡（类别不平衡时… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
国产编程 AI 天花板来了！通义千问 Qwen3.6-Plus 深度测评：百万上下文 + 最强代码能力 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
阿里巴巴发布新一代旗舰模型Qwen3.6-Plus，具备100万token超长上下文、领先的Agentic Coding能力和原生多模态理解三大亮点。该模型采… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
2026使用Alpine配置WSL ssh门户 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
ax2.scatter(sales_2022, y_pos, s=120, color='#4C72B0', alpha=0.9, label='2022年'… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
知识图谱实战第一章：知识图谱全景解析其定义、技术演进与十大应用场景 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
知识图谱是以图结构形式描述客观世界概念、实体及其关系的语义网络，由节点（实体/概念）和边（关系/属性）组成。其技术架构包含数据获取、信息抽取（实体/关系/属性… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
腾讯 WorkBuddy 超详细安装教程（Windows+macOS 全步骤） div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
本文提供了腾讯WorkBuddy在Windows和macOS系统上的详细安装指南。内容涵盖安装前的系统要求、官方下载渠道，以及Windows和macOS的具体… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
【Claude Code】带你理解从零理解 RAG 以及具体实现流程图 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
中文语义就是检索增强生成，是一种。 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
Claude Code Windows 安装与使用完全指南 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
Claude Code 安装与使用指南摘要 Claude Code是Anthropic推出的终端AI编程助手，支持代码编写、调试和项目分析。 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
一张被贴在 50 元标签下的百亿门票——《窗口期：中国广播产业的十年抉择》系列第一篇 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
十四五留下的规划空白——在"十四五规划纲要"和"2035 智能网联汽车技术路线图"里， div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
Cursor 3 发布 — AI编程进入多智能体协同时代，直接挑战 Claude Code div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
Cursor 3发布标志着AI编程进入多智能体协同时代，直接挑战Claude Code。新版本引入多Agent并行工作、云端离线运行、可视化设计模式等创新功能… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
2026系统分析师考试 全天详细复习计划 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
内容：测试分类、白盒黑盒、等价类、边界值、单元/集成/系统测试。- 内容：著作权、专利、商标、标准分类、ISO9001、ITIL。- 内容：进程管理、线程、P… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
Rust所有权与借用规则深度解析：从踩坑到理解 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
刚开始学Rust的时候，我对所有权的概念完全懵圈。什么是所有权？为什么要有所有权？这跟我之前学的其他语言完全不一样啊！所有权是Rust用来管理内存的一套规则，… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
2026年充电桩市场发展趋势分析：政策驱动、技术革新与产业重构 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
2026年充电桩市场迎来关键变革期，在"双碳"目标和智能化转型驱动下加速重构。政策红利持续释放，多地出台补贴政策推动规模化、智能化建设，要… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
C++入门—内存管理 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
int main()// new/delete 和 malloc/free最大区别是 new/delete对于【自定义类型】除了开空间还会调用构造函数和析构函… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
一步到位！OpenClaw Windows 完整部署，小白无压力上手 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
OpenClaw（小龙虾）Windows一键部署教程 本教程为零基础用户提供OpenClaw的快速部署指南。OpenClaw是一款本地运行的AI办公助手，支持… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
2026年4月AI圈动态盘点：融资天花板、模型闪电战与智能体落地 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
2026年4月，全球AI行业进入了一个密集的“信息释放期”。从OpenAI刷新商业史的融资纪录，到阿里千问登顶全球调用榜，再到Anthropic发布最新模型，… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
【Agent-阿程】OpenClaw v2026.4.15 版本更新全解析 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
OpenClaw v2026.4.15 正式发布，版本号：OpenClaw v2026.4.15，发布时间：2026年4月16日，更新类型：功能重磅+安全增强… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
【HFP】规范精讲[24]: 蓝牙HFP术语宝典 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
本文系统拆解了蓝牙HFP（Hands-Free Profile）的34个核心术语，将其划分为五大功能维度：设备角色类（AG/HF）、核心协议类（RFCOMM/… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
Linux 下 Docker 安装教程（2026） div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
1.4、添加国内清华 Docker 镜像源（解决 SSL / 网络问题）1.3、添加 Docker 官方 GPG 密钥。1.6、安装最新版 Docker包。1… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
NOR与NAND闪存核心区别解析 div.article-item > div.article-item-cont > div.artivle-item-left > a.article-title |
选择NOR还是NAND，根本上是应用需求与技术特性需要存储并直接执行代码、对随机读取延迟敏感、容量要求不大（<1Gb）时，选择NOR Flash。需要海量数据… div.article-item > div.article-item-cont > div.artivle-item-left > a.article-desc |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button |
These items highlight common accessibility best practices.
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Performance issues directly impact user engagement and conversion rates.
| URL | Aspect Ratio (Displayed) | Aspect Ratio (Actual) | |
|---|---|---|---|
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230306070808940.jpg | 98 x 64 (1.53) | 1600 x 900 (1.78) |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230209093821579.jpg | 98 x 64 (1.53) | 1366 x 768 (1.78) |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230310014808316.jpg | 98 x 64 (1.53) | 1364 x 768 (1.78) |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230306064258203.jpg | 98 x 64 (1.53) | 1280 x 800 (1.60) |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230310013332272.jpg | 98 x 64 (1.53) | 1024 x 768 (1.33) |
div.member-item > a > div.image > img div.member-item > a > div.image > img | img-bss.csdnimg.cn/20230209093835884.jpg | 98 x 64 (1.53) | 1120 x 632 (1.77) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
div.article-item > div.article-item-cont > a.artivle-item-right > img div.article-item > div.article-item-cont > a.artivle-item-right > img | csdnimg.cn/release/cmsfe/public/img/lazyLogo2.1882d7f4.png | 128 x 84 (1.52) | 428 x 240 (1.78) |
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. |
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.
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
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
立即登录 div.toolbar-btns > div.toolbar-btn > div#csdn-toolbar-profile-nologin > a.csdn-toolbar-loginbtn |
body > div > div.csdn-side-toolbar > a.option-box body > div > div.csdn-side-toolbar > a.option-box |
To appear in search results, crawlers need access to your app.
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 |
|---|
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img a.layout-menu-item_inner > div.layout-menu-item_info > div.layout-menu-item_icon > img |
div > div.menus-view > div.menus-view_next > img div > div.menus-view > div.menus-view_next > img |
div.ad_fullWidth > div.ad-wrap > div#kp_box_986 > img.pre-img-lasy div.ad_fullWidth > div.ad-wrap > div#kp_box_986 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_585 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_585 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_588 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_588 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_589 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_589 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_590 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_590 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_591 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_591 > img.pre-img-lasy |
div.el-carousel__item > div.carousel_item_iframe > div#kp_box_592 > img.pre-img-lasy div.el-carousel__item > div.carousel_item_iframe > div#kp_box_592 > img.pre-img-lasy |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Send Feedback