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PREDOC-BEST DOCTORS SEARCH, BOOK APPOINTMENT & SAVE TIME
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sm.cn
Last Updated: 9 months
Success
54% of passed verification steps
Warning
23% of total warning
Errors
23% of total errors, require fast action
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Desktop
Mobile
Performance
Desktop Score 95%
Best Practices
Desktop Score 93%
SEO
Desktop Score 83%
Performance
Mobile Score 87%
Best Practices
Mobile Score 96%
SEO
Mobile Score 83%
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Social Data
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Estimation Traffic and Earnings
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Desktop
Eliminate render-blocking resources
Potential savings of 270 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Server Backend Latencies
10 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
Max Potential First Input Delay
20 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Largest Contentful Paint element
710 ms
This is the largest contentful element painted within the viewport
Avoids enormous network payloads
Total size was 276 KiB
Large network payloads cost users real money and are highly correlated with long load times
JavaScript execution time
0.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoid long main-thread tasks
1 long task found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Initial server response time was short
Root document took 170 ms
Keep the server response time for the main document short because all other requests depend on it
Reduce unused JavaScript
Potential savings of 22 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Defer offscreen images
Potential savings of 4 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Minimize third-party usage
Third-party code blocked the main thread for 0 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
First Contentful Paint
0.7 s
First Contentful Paint marks the time at which the first text or image is painted
Largest Contentful Paint
0.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Avoids an excessive DOM size
108 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)
Serve images in next-gen formats
Potential savings of 17 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Serve static assets with an efficient cache policy
14 resources found
A long cache lifetime can speed up repeat visits to your page
Speed Index
2.1 s
Speed Index shows how quickly the contents of a page are visibly populated
Total Blocking Time
0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Minimizes main-thread work
0.4 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Time to Interactive
0.7 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
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
Network Round Trip Times
40 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
Mobile
Minimize third-party usage
Third-party code blocked the main thread for 0 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
Server Backend Latencies
470 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
Document uses legible font sizes
87.22% 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
1.5 s
First Contentful Paint marks the time at which the first text or image is painted
Total Blocking Time
310 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Initial server response time was short
Root document took 520 ms
Keep the server response time for the main document short because all other requests depend on it
Avoid large layout shifts
1 layout shift found
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to [windowing](https://web.dev/articles/cls#what_is_cls)
Network Round Trip Times
50 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
Minimizes main-thread work
1.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
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
Time to Interactive
2.5 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
Avoids enormous network payloads
Total size was 77 KiB
Large network payloads cost users real money and are highly correlated with long load times
Serve static assets with an efficient cache policy
2 resources found
A long cache lifetime can speed up repeat visits to your page
Cumulative Layout Shift
0.033
Cumulative Layout Shift measures the movement of visible elements within the viewport
Largest Contentful Paint element
2,510 ms
This is the largest contentful element painted within the viewport
Avoids an excessive DOM size
127 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)
Largest Contentful Paint
2.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Properly size images
Potential savings of 22 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Max Potential First Input Delay
340 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Speed Index
4.8 s
Speed Index shows how quickly the contents of a page are visibly populated
JavaScript execution time
0.2 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Speed And Optimization Tips
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Alexa Rank
99,999,999
Global Rank
99,999,999
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