Google.cn Google
google.cn Mobile Performance
100/100
These metrics represent real-world Chrome users experience viewing google.cn on mobile devices. 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 Contentful Paint
Largest Contentful Paint
Cumulative Layout Shift
First Input Delay
Metrics
First Contentful Paint99/100 1.5 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Largest Contentful Paint99/100 1.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Time to Interactive100/100 1.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Speed Index100/100 1.5 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Total Blocking Time100/100 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Cumulative Layout Shift100/100 0
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (4)
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid long main-thread tasks
2 long tasks found
Avoid chaining critical requests
1 chain found
Keep request counts low and transfer sizes small
3 requests • 26 KiB
Largest Contentful Paint element
1 element found
Passed Audits (23)
Uses efficient cache policy on static assets
0 resources found
Avoids an excessive DOM size
13 elements
Remove unused JavaScript
Minify CSS
Uses passive listeners to improve scrolling performance
Properly size images
Defer offscreen images
Eliminate render-blocking resources
Initial server response time was short
Root document took 10 ms
Preconnect to required origins
All text remains visible during webfont loads
JavaScript execution time
0.0 s
Minify JavaScript
Preload key requests
Avoids `document.write()`
Avoid multiple page redirects
Potential savings of 630 ms
Avoids enormous network payloads
Total size was 26 KiB
Efficiently encode images
Use video formats for animated content
Minimizes main-thread work
0.5 s
Enable text compression
Serve images in next-gen formats
Potential savings of 10 KiB
Remove unused CSS
google.cn Mobile SEO
69/100
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 (4)
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Document does not have a meta description
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. Learn more.
Document doesn't use legible font sizes
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
Tap targets are not sized appropriately
Passed Audits (9)
robots.txt is valid
Links have descriptive text
Document avoids plugins
Page has successful HTTP status code
Document has a `<title>` element
Page isn’t blocked from indexing
Image elements have `[alt]` attributes
Links are crawlable
Document has a valid `hreflang`
google.cn Mobile Best Practices
92/100
These checks highlight opportunities to improve the overall code health of google.cn mobile 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 (1)
Trust and Safety
Does not use HTTPS
3 insecure requests found
Passed Audits (13)
Avoids requesting the geolocation permission on page load
Displays images with correct aspect ratio
Detected JavaScript libraries
Avoids requesting the notification permission on page load
Properly defines charset
Allows users to paste into password fields
Avoids deprecated APIs
No browser errors logged to the console
Avoids front-end JavaScript libraries with known security vulnerabilities
Page has the HTML doctype
Links to cross-origin destinations are safe
Avoids Application Cache
Serves images with appropriate resolution
google.cn Mobile Progressive Web App
29/100
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 (12)
PWA Optimized
Does not provide a valid `apple-touch-icon`
Does not set a theme color for the address bar.
Does not redirect HTTP traffic to HTTPS
Content is not sized correctly for the viewport
Is not configured for a custom splash screen
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
Manifest doesn't have a maskable icon
Fast and reliable
Current page does not respond with a 200 when offline
`start_url` does not respond with a 200 when offline
Installable
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
Does not use HTTPS
3 insecure requests found
Passed Audits (2)
Page load is fast enough on mobile networks
Contains some content when JavaScript is not available
google.cn Mobile Accessibility
100/100
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.
Passed Audits (11)
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Heading elements appear in a sequentially-descending order
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
Links have a discernible name
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Image elements have `[alt]` attributes
The page contains a heading, skip link, or landmark region
Background and foreground colors have a sufficient contrast ratio
`[aria-hidden="true"]` is not present on the document `<body>`
Mobile Usability
64/100
These checks validate how easily a visitor can use google.cn on a mobile device. Test results include a list of any mobile usability problems. Mobile usability problems are issues that can affect a user that visits the page on a mobile (small screen) device, including small font sizes (which are hard to read on a small screen).
Should Fix (3)
Use legible font sizes
Configure the viewport
Size tap targets appropriately
Passed Audits (2)
Avoid plugins
Size content to viewport
Mobile Speed
100/100
These checks analyze the performance of google.cn on mobile devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Passed Audits (10)
Avoid landing page redirects
Enable compression
Leverage browser caching
Reduce server response time
Minify CSS
Minify HTML
Minify JavaScript
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Optimize images
Prioritize visible content
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