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name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value22.8 s

0/100

25%

SI (Speed Index)

Value16.0 s

0/100

10%

TBT (Total Blocking Time)

Value3,720 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.337

33/100

15%

TTI (Time to Interactive)

Value21.3 s

1/100

10%

pr-vn.com

796 ms

pr-vn.com

1451 ms

CSS-bootstrap.min.css

488 ms

font-awesome.min.css

964 ms

font-extra.css

729 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 82% of them (65 requests) were addressed to the original Pr-vn.com, 8% (6 requests) were made to Uhchat.net and 3% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Pr-vn.com.

Content Size

8.6 MB

After Optimization

7.7 MB

In fact, the total size of Pr-vn.com main page is 8.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 8.4 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 109.5 kB

Original 121.4 kB
After minification 92.6 kB
After compression 11.9 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 28.8 kB, which is 24% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 109.5 kB or 90% of the original size.

Image Optimization

-9%

Potential reduce by 788.8 kB

Original 8.4 MB
After minification 7.6 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Pr Vn images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 13.2 kB

Original 44.3 kB
After minification 44.3 kB
After compression 31.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 13.2 kB or 30% of the original size.

CSS Optimization

-31%

Potential reduce by 20.5 kB

Original 65.5 kB
After minification 65.5 kB
After compression 45.0 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Pr-vn.com needs all CSS files to be minified and compressed as it can save up to 20.5 kB or 31% of the original size.

Requests Now

After Optimization

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pr Vn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

High

[aria-*] attributes do not have valid values

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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](https://developers.google.com/search/mobile-sites/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

VI
Language Claimed

VI
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pr-vn.com can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Pr-vn.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

pr-vn.com

Open Graph data is detected on the main page of Pr Vn. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

pr-vn.com | Pr Việt Kênh truyền thông và giới thiệu sản phẩm, dịch vụ

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

pr-vn.com

pr-vn.com

CSS-bootstrap.min.css

font-awesome.min.css

font-extra.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

pr-vn.com

pr-vn.com

CSS-bootstrap.min.css

font-awesome.min.css

font-extra.css

CSS-Footer-Dark.css

CSS-Navigation-with-Button.css

CSS-lightbox.css

CSS-owl.carousel.min.css

CSS-styles.css

CSS-Br-Custom.css

CSS-Br-Media.css

CSS-Brsupport-widget.min.css

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jquery-2.1.4.min.js

js-owl.carousel.min.js

js-bootstrap.min.js

js-lightbox.js

js-aos.js

sticky.min.js

js-main.js

js-imageLazyLoading.js

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sdk.js

js

adsbygoogle.js

code.php

jquery.validate.min.js

Utilitie.js

logo-prvn.png