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14 mechanicauto.vn Last Updated: 2 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 88%
Best Practices Desktop Score 71%
SEO Desktop Score 83%
Progressive Web App Desktop Score 52%
Performance Mobile Score 39%
Best Practices Mobile Score 79%
SEO Mobile Score 93%
Progressive Web App Mobile Score 54%
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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
Max Potential First Input Delay 70 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
First CPU Idle 1.9 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/).
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
JavaScript execution time 0.4 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Properly size images Potential savings of 2,760 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Initial server response time was short Root document took 400 ms
Keep the server response time for the main document short because all other requests depend on it
Minimize third-party usage Third-party code blocked the main thread for 20 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 long main-thread tasks 3 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Serve images in next-gen formats Potential savings of 2,256 KiB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
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
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
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
Speed Index 1.3 s
Speed Index shows how quickly the contents of a page are visibly populated
Avoid serving legacy JavaScript to modern browsers Potential savings of 7 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
First Meaningful Paint 0.8 s
First Meaningful Paint measures when the primary content of a page is visible
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
Time to Interactive 1.9 s
Time to interactive is the amount of time it takes for the page to become fully interactive
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
Avoids an excessive DOM size 402 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)
Total Blocking Time 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoid enormous network payloads Total size was 5,216 KiB
Large network payloads cost users real money and are highly correlated with long load times
Minify CSS Potential savings of 3 KiB
Minifying CSS files can reduce network payload sizes
Keep request counts low and transfer sizes small 73 requests • 5,216 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 6 resources found
A long cache lifetime can speed up repeat visits to your page
Eliminate render-blocking resources Potential savings of 340 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 152 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
Avoid chaining critical requests 9 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
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
Largest Contentful Paint 1.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Efficiently encode images Potential savings of 5 KiB
Optimized images load faster and consume less cellular data
Cumulative Layout Shift 0.622
Cumulative Layout Shift measures the movement of visible elements within the viewport
First Contentful Paint 0.7 s
First Contentful Paint marks the time at which the first text or image is painted

Mobile

Mobile Screenshot
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 4,857 KiB
Large network payloads cost users real money and are highly correlated with long load times
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
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
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
Serve images in next-gen formats Potential savings of 2,101 KiB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Largest Contentful Paint 8.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Avoid long main-thread tasks 16 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
First CPU Idle 8.8 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/).
Initial server response time was short Root document took 180 ms
Keep the server response time for the main document short because all other requests depend on it
First Meaningful Paint 2.5 s
First Meaningful Paint measures when the primary content of a page is visible
First Contentful Paint 2.4 s
First Contentful Paint marks the time at which the first text or image is painted
Tap targets are sized appropriately 100% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Minimize main-thread work 4.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Properly size images Potential savings of 607 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Keep request counts low and transfer sizes small 74 requests • 4,857 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Preload key requests Potential savings of 630 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Minify CSS Potential savings of 3 KiB
Minifying CSS files can reduce network payload sizes
Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Remove unused JavaScript Potential savings of 152 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
Max Potential First Input Delay 240 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
Time to Interactive 9.4 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Eliminate render-blocking resources Potential savings of 990 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Cumulative Layout Shift 0.848
Cumulative Layout Shift measures the movement of visible elements within the viewport
Reduce JavaScript execution time 2.7 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Speed Index 4.1 s
Speed Index shows how quickly the contents of a page are visibly populated
First Contentful Paint (3G) 4488.5 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Serve static assets with an efficient cache policy 7 resources found
A long cache lifetime can speed up repeat visits to your page
Avoids an excessive DOM size 394 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)
Estimated Input Latency 80 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
Avoid chaining critical requests 9 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
Avoid serving legacy JavaScript to modern browsers Potential savings of 7 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
Total Blocking Time 760 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Document uses legible font sizes 99.33% 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
Efficiently encode images Potential savings of 5 KiB
Optimized images load faster and consume less cellular data
Reduce the impact of third-party code Third-party code blocked the main thread for 1,110 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

Speed And Optimization Tips

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Alexa Rank

699,970

Global Rank

15,368

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