Tools & Wizards About Us

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

vanhocvn.com

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Page Load Speed

10.4 sec in total

First Response

2.6 sec

Resources Loaded

7.6 sec

Page Rendered

204 ms

About Website

Visit vanhocvn.com now to see the best up-to-date Vanhocvn content for Vietnam and also check out these interesting facts you probably never knew about vanhocvn.com

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Visit vanhocvn.com

Key Findings

We analyzed Vanhocvn.com page load time and found that the first response time was 2.6 sec and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

vanhocvn.com performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0.037

100/100

15%

TTI (Time to Interactive)

Value7.5 s

48/100

10%

Network Requests Diagram

vanhocvn.com

2584 ms

wp-emoji-release.min.js

553 ms

style.css

1132 ms

css

25 ms

css

39 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 43% of them (36 requests) were addressed to the original Vanhocvn.com, 18% (15 requests) were made to Static.xx.fbcdn.net and 11% (9 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Vanhocvn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 412.3 kB (46%)

Content Size

893.8 kB

After Optimization

481.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vanhocvn.com main page is 893.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Javascripts take 503.2 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 46.7 kB

  • Original 58.0 kB
  • After minification 50.3 kB
  • After compression 11.2 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 7.7 kB, which is 13% 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 46.7 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 16.6 kB

  • Original 276.5 kB
  • After minification 260.0 kB

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. Vanhocvn images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 302.6 kB

  • Original 503.2 kB
  • After minification 498.9 kB
  • After compression 200.6 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 302.6 kB or 60% of the original size.

CSS Optimization

-83%

Potential reduce by 46.5 kB

  • Original 56.1 kB
  • After minification 41.3 kB
  • After compression 9.7 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. Vanhocvn.com needs all CSS files to be minified and compressed as it can save up to 46.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (41%)

Requests Now

80

After Optimization

47

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vanhocvn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

vanhocvn.com accessibility score

54

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Names and labels

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.

Impact

Issue

High

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

vanhocvn.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

vanhocvn.com SEO score

100

Search Engine Optimization Advices

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vanhocvn.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Vietnamese language. Our system also found out that Vanhocvn.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

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