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weibo.com
Last Updated: 3 months
Success
40% of passed verification steps
Warning
30% of total warning
Errors
30% of total errors, require fast action
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Desktop
Mobile
Performance
Desktop Score 39%
Best Practices
Desktop Score 92%
SEO
Desktop Score 73%
PWA
Desktop Score 25%
Performance
Mobile Score 8%
Best Practices
Mobile Score 93%
SEO
Mobile Score 83%
PWA
Mobile Score 88%
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Social Data
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Desktop
Properly size images
Potential savings of 427 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Avoid an excessive DOM size
1,551 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Reduce unused CSS
Potential savings of 177 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
Efficiently encode images
Potential savings of 41 KiB
Optimized images load faster and consume less cellular data
Speed Index
4.7 s
Speed Index shows how quickly the contents of a page are visibly populated
Minimize main-thread work
2.4 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Cumulative Layout Shift
0.037
Cumulative Layout Shift measures the movement of visible elements within the viewport
Avoid long main-thread tasks
4 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Avoid large layout shifts
2 elements found
These DOM elements contribute most to the CLS of the page
Avoid multiple page redirects
Potential savings of 800 ms
Redirects introduce additional delays before the page can be loaded
Largest Contentful Paint element
1 element found
This is the largest contentful element painted within the viewport
Serve static assets with an efficient cache policy
22 resources found
A long cache lifetime can speed up repeat visits to your page
Avoid serving legacy JavaScript to modern browsers
Potential savings of 22 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Largest Contentful Paint
3.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Server Backend Latencies
0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Preload Largest Contentful Paint image
Potential savings of 120 ms
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP
Network Round Trip Times
0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Avoid enormous network payloads
Total size was 3,043 KiB
Large network payloads cost users real money and are highly correlated with long load times
Avoid non-composited animations
30 animated elements found
Animations which are not composited can be janky and increase CLS
Max Potential First Input Delay
410 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Reduce initial server response time
Root document took 1,150 ms
Keep the server response time for the main document short because all other requests depend on it
First Meaningful Paint
2.9 s
First Meaningful Paint measures when the primary content of a page is visible
Total Blocking Time
510 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Time to Interactive
4.1 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
Reduce JavaScript execution time
1.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoid chaining critical requests
2 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
First Contentful Paint
2.9 s
First Contentful Paint marks the time at which the first text or image is painted
Web app manifest or service worker do not meet the installability requirements
1 reason
Service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement
Reduce the impact of third-party code
Third-party code blocked the main thread for 830 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Keep request counts low and transfer sizes small
94 requests • 3,043 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Reduce unused JavaScript
Potential savings of 882 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Serve images in next-gen formats
Potential savings of 577 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Defer offscreen images
Potential savings of 2 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Mobile
Avoid long main-thread tasks
10 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Cumulative Layout Shift
1
Cumulative Layout Shift measures the movement of visible elements within the viewport
Avoid non-composited animations
56 animated elements found
Animations which are not composited can be janky and increase CLS
Avoid serving legacy JavaScript to modern browsers
Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Avoids an excessive DOM size
750 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Time to Interactive
8.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
Avoid multiple page redirects
Potential savings of 780 ms
Redirects introduce additional delays before the page can be loaded
Initial server response time was short
Root document took 270 ms
Keep the server response time for the main document short because all other requests depend on it
Minimize main-thread work
6.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Eliminate render-blocking resources
Potential savings of 150 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Reduce JavaScript execution time
2.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Serve static assets with an efficient cache policy
23 resources found
A long cache lifetime can speed up repeat visits to your page
Reduce unused JavaScript
Potential savings of 320 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Largest Contentful Paint element
9,440 ms
This is the largest contentful element painted within the viewport
Avoids enormous network payloads
Total size was 1,159 KiB
Large network payloads cost users real money and are highly correlated with long load times
Network Round Trip Times
270 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Speed Index
15.9 s
Speed Index shows how quickly the contents of a page are visibly populated
Server Backend Latencies
270 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Total Blocking Time
1,430 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Largest Contentful Paint
9.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Serve images in next-gen formats
Potential savings of 79 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Reduce the impact of third-party code
Third-party code blocked the main thread for 2,590 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Avoid large layout shifts
10 elements found
These DOM elements were most affected by layout shifts. Some layout shifts may not be included in the CLS metric value due to [windowing](https://web.dev/articles/cls#what_is_cls)
Document uses legible font sizes
100% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
First Contentful Paint
3.6 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests
3 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Properly size images
Potential savings of 305 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
First Meaningful Paint
3.6 s
First Meaningful Paint measures when the primary content of a page is visible
Tap targets are not sized appropriately
87% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), or have enough space around them, to be easy enough to tap without overlapping onto other elements
Reduce unused CSS
Potential savings of 25 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
Max Potential First Input Delay
660 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Speed And Optimization Tips
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Alexa Rank
99,999,999
Global Rank
99,999,999
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weibo.co
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weibo.net
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