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23 vachngancachnhiet.vn Last Updated: 7 months

Success 62% of passed verification steps
Warning 15% of total warning
Errors 23% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 78%
Best Practices Desktop Score 79%
SEO Desktop Score 92%
Progressive Web App Desktop Score 56%
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Social Data

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Estimation Traffic and Earnings

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Technologies

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PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Desktop Screenshot
Remove unused CSS Potential savings of 167 KiB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Avoids enormous network payloads Total size was 587 KiB
Large network payloads cost users real money and are highly correlated with long load times
Reduce initial server response time Root document took 2,610 ms
Keep the server response time for the main document short because all other requests depend on it
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoids an excessive DOM size 505 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)
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
First Contentful Paint 1.2 s
First Contentful Paint marks the time at which the first text or image is painted
First Meaningful Paint 1.2 s
First Meaningful Paint measures when the primary content of a page is visible
Avoids large JavaScript libraries with smaller alternatives 0 large libraries found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size
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
Speed Index 8.4 s
Speed Index shows how quickly the contents of a page are visibly populated
Time to Interactive 1.2 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Avoid chaining critical requests 16 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
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
Avoid long main-thread tasks 2 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
First CPU Idle 1.2 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle/).
Eliminate render-blocking resources Potential savings of 850 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Remove unused JavaScript Potential savings of 87 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
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
JavaScript execution time 0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Minimize third-party usage Third-party code blocked the main thread for 10 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 51 requests • 587 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 42 resources found
A long cache lifetime can speed up repeat visits to your page
Preload key requests Potential savings of 230 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Largest Contentful Paint 1.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Minimizes main-thread work 0.9 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Includes front-end JavaScript libraries with known security vulnerabilities 4 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid serving legacy JavaScript to modern browsers Potential savings of 6 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
Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy

Mobile

Mobile Screenshot

Speed And Optimization Tips

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Alexa Rank

99,999,999

Global Rank

99,999,999

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Traffic
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Domain Available

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Information Server

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