Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

tis.edu.vn

Trường Quốc Tế TIS - Trường Phổ Thông Quốc Tế Chất Lượng

Page Load Speed

11.8 sec in total

First Response

2.6 sec

Resources Loaded

8.9 sec

Page Rendered

229 ms

tis.edu.vn screenshot

About Website

Click here to check amazing TIS content for Vietnam. Otherwise, check out these important facts you probably never knew about tis.edu.vn

Trường quốc tế TIS - trường tiểu học quốc tế TIS , trường trung học , phổ thông quốc tế chất lượng - mô hình giáo dục cá thể hóa tiên phong tại TpHCM.

Visit tis.edu.vn

Key Findings

We analyzed Tis.edu.vn page load time and found that the first response time was 2.6 sec and then it took 9.2 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

tis.edu.vn performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value30.3 s

0/100

25%

SI (Speed Index)

Value23.0 s

0/100

10%

TBT (Total Blocking Time)

Value3,600 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.182

67/100

15%

TTI (Time to Interactive)

Value33.1 s

0/100

10%

Network Requests Diagram

tis.edu.vn

2584 ms

style.css

469 ms

jquery.bxslider.css

471 ms

custom-styles.css

472 ms

dashicons.min.css

1679 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 77% of them (74 requests) were addressed to the original Tis.edu.vn, 5% (5 requests) were made to S7.addthis.com and 3% (3 requests) were made to Static-v.tawk.to. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Tis.edu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (54%)

Content Size

2.7 MB

After Optimization

1.2 MB

In fact, the total size of Tis.edu.vn main page is 2.7 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. 65% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 255.5 kB

  • Original 312.5 kB
  • After minification 306.2 kB
  • After compression 57.0 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 255.5 kB or 82% of the original size.

Image Optimization

-13%

Potential reduce by 107.9 kB

  • Original 811.4 kB
  • After minification 703.5 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. Obviously, TIS needs image optimization as it can save up to 107.9 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 961.9 kB

  • Original 1.4 MB
  • After minification 1.3 MB
  • After compression 394.6 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 961.9 kB or 71% of the original size.

CSS Optimization

-62%

Potential reduce by 136.8 kB

  • Original 221.1 kB
  • After minification 209.1 kB
  • After compression 84.3 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. Tis.edu.vn needs all CSS files to be minified and compressed as it can save up to 136.8 kB or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (39%)

Requests Now

90

After Optimization

55

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TIS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

tis.edu.vn accessibility score

81

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

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

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

tis.edu.vn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

tis.edu.vn SEO score

88

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

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 Tis.edu.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 Tis.edu.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

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