Tools & Wizards About Us
vantin.vn screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

vantin.vn

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Page Load Speed

8.3 sec in total

First Response

2.4 sec

Resources Loaded

5.7 sec

Page Rendered

123 ms

vantin.vn screenshot

About Website

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Key Findings

We analyzed Vantin.vn page load time and found that the first response time was 2.4 sec and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

vantin.vn performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.6 s

0/100

25%

SI (Speed Index)

Value17.2 s

0/100

10%

TBT (Total Blocking Time)

Value1,060 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.203

61/100

15%

TTI (Time to Interactive)

Value22.9 s

1/100

10%

Network Requests Diagram

vantin.vn

2427 ms

wp-emoji-release.min.js

242 ms

slider-pro.css

475 ms

css

67 ms

genericons.css

717 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 86% of them (19 requests) were addressed to the original Vantin.vn, 9% (2 requests) were made to Fonts.googleapis.com and 5% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Vantin.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 41.0 kB (6%)

Content Size

689.1 kB

After Optimization

648.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vantin.vn main page is 689.1 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. 20% of websites need less resources to load. Images take 636.8 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 11.8 kB

  • Original 16.2 kB
  • After minification 15.8 kB
  • After compression 4.4 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 11.8 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 1.4 kB

  • Original 636.8 kB
  • After minification 635.4 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. Vantin images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 9.2 kB

  • Original 13.8 kB
  • After minification 11.7 kB
  • After compression 4.6 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 9.2 kB or 66% of the original size.

CSS Optimization

-83%

Potential reduce by 18.6 kB

  • Original 22.3 kB
  • After minification 17.3 kB
  • After compression 3.7 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. Vantin.vn needs all CSS files to be minified and compressed as it can save up to 18.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (45%)

Requests Now

20

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vantin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vantin.vn

vantin.vn

2427 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

242 ms

slider-pro.css

slider-pro.css

475 ms

css

css

67 ms

genericons.css

genericons.css

717 ms

style.css

style.css

489 ms

jquery.js

jquery.js

757 ms

jquery-migrate.min.js

jquery-migrate.min.js

584 ms

webfont.js

webfont.js

5 ms

jquery.sliderPro.js

jquery.sliderPro.js

780 ms

skip-link-focus-fix.js

skip-link-focus-fix.js

732 ms

functions.js

functions.js

746 ms

iconAll.png

iconAll.png

276 ms

a1.jpg

a1.jpg

494 ms

a2.jpg

a2.jpg

336 ms

a3.jpg

a3.jpg

592 ms

css

css

29 ms

social_logo.png

social_logo.png

310 ms

openhand.cur

openhand.cur

299 ms

T1.RKTBKCT1RXrhCrK.jpg

T1.RKTBKCT1RXrhCrK.jpg

693 ms

T1e9DTBXZv1RXrhCrK.jpg

T1e9DTBXZv1RXrhCrK.jpg

1003 ms

T1BbA_B7hT1RXrhCrK.png

T1BbA_B7hT1RXrhCrK.png

2463 ms

Accessibility Review

vantin.vn accessibility score

64

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

vantin.vn 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

vantin.vn SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

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 Vantin.vn 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 Vantin.vn 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

vantin.vn

Open Graph description is not detected on the main page of Vantin. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: