Deepin.org 深度科技社区
深度操作系统是一个致力于为全球用户提供美观易用，安全可靠的Linux发行版。它不仅仅对最优秀的开源产品进行集成和配置，还开发了基于HTML 5技术的深度桌面环境、控制中心、以及深度音乐、深度影院和深度商店等一系列面向日常使用的应用软件。深度操作系统非常注重易用的体验和美观的设计，因此对于大多数用户来...
deepin.org Desktop Performance
58/100
These metrics represent real-world Chrome users experience viewing deepin.org web page. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.
User Loading Experience
First Input Delay
Largest Contentful Paint
First Contentful Paint
Cumulative Layout Shift
Metrics
Speed Index1/100 7.0 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Largest Contentful Paint32/100 3.1 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint40/100 1.8 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift78/100 0.142
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Time to Interactive97/100 1.8 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Total Blocking Time100/100 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (14)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Reduce initial server response time
Root document took 3,170 ms
2,566 ms
Eliminate render-blocking resources
Potential savings of 1,350 ms
1,348 ms
Enable text compression
Potential savings of 747 KiB
520 ms
Avoid multiple page redirects
Potential savings of 410 ms
410 ms
Remove unused CSS
Potential savings of 311 KiB
360 ms
Minify JavaScript
Potential savings of 159 KiB
80 ms
Remove unused JavaScript
Potential savings of 222 KiB
80 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid `document.write()`
Serve static assets with an efficient cache policy
63 resources found
Keep request counts low and transfer sizes small
74 requests • 1,277 KiB
Largest Contentful Paint element
1 element found
Avoid long main-thread tasks
2 long tasks found
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
40 chains found
Passed Audits (14)
All text remains visible during webfont loads
Uses passive listeners to improve scrolling performance
Preconnect to required origins
JavaScript execution time
0.1 s
Use video formats for animated content
Minify CSS
Potential savings of 44 KiB
Avoids enormous network payloads
Total size was 1,277 KiB
Minimizes main-thread work
0.8 s
Avoids an excessive DOM size
461 elements
Properly size images
Serve images in next-gen formats
Potential savings of 177 KiB
Efficiently encode images
Potential savings of 122 KiB
Defer offscreen images
Preload key requests
deepin.org Desktop SEO
80/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Should Fix (2)
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have `[alt]` attributes
Document does not have a meta description
Passed Audits (8)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Links are crawlable
Document avoids plugins
Links have descriptive text
Page isn’t blocked from indexing
Document has a valid `hreflang`
Page has successful HTTP status code
Document has a `<title>` element
deepin.org Desktop Best Practices
69/100
These checks highlight opportunities to improve the overall code health of deepin.org page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (4)
Trust and Safety
Links to cross-origin destinations are unsafe
Does not use HTTPS
3 insecure requests found
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
User Experience
Displays images with incorrect aspect ratio
Passed Audits (10)
Avoids requesting the notification permission on page load
No browser errors logged to the console
Serves images with appropriate resolution
Avoids deprecated APIs
Detected JavaScript libraries
Allows users to paste into password fields
Avoids requesting the geolocation permission on page load
Page has the HTML doctype
Avoids Application Cache
Properly defines charset
deepin.org Desktop Progressive Web App
22/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Should Fix (9)
PWA Optimized
Manifest doesn't have a maskable icon
Is not configured for a custom splash screen
Does not set a theme color for the address bar.
Installable
Does not use HTTPS
3 insecure requests found
Web app manifest does not meet the installability requirements
Does not register a service worker that controls page and `start_url`
Fast and reliable
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive on simulated mobile network at 13.8 s
Passed Audits (4)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Provides a valid `apple-touch-icon`
Contains some content when JavaScript is not available
Redirects HTTP traffic to HTTPS
deepin.org Desktop Accessibility
63/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Should Fix (7)
Navigation
These are opportunities to improve keyboard navigation in your application.
The page does not contain a heading, skip link, or landmark region
Names and labels
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.
Links do not have a discernible name
Image elements do not have `[alt]` attributes
Form elements do not have associated labels
Tables and lists
These are opportunities to to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are not contained within `<ul>` or `<ol>` parent elements.
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (8)
`[aria-hidden="true"]` is not present on the document `<body>`
`[aria-*]` attributes have valid values
`<html>` element has a `[lang]` attribute
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`[aria-*]` attributes match their roles
Document has a `<title>` element
`<html>` element has a valid value for its `[lang]` attribute
`[aria-*]` attributes are valid and not misspelled
Desktop Speed
82/100
These checks analyze the performance of deepin.org on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (7)
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Avoid landing page redirects
Leverage browser caching
Enable compression
Minify JavaScript
Minify CSS
Optimize images
Passed Audits (3)
Reduce server response time
Minify HTML
Prioritize visible content
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