Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

unishanoi.org

International School In Hanoi Vietnam | UNIS Hanoi

Page Load Speed

5.3 sec in total

First Response

342 ms

Resources Loaded

4.4 sec

Page Rendered

492 ms

unishanoi.org screenshot

About Website

Welcome to unishanoi.org homepage info - get ready to check UNIS Hanoi best content for Vietnam right away, or after learning these important things about unishanoi.org

UNIS Hanoi is ever-evolving, but one thing that remains is our passion to nurture and equip students to be agents of change for a better world.

Visit unishanoi.org

Key Findings

We analyzed Unishanoi.org page load time and found that the first response time was 342 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

unishanoi.org performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value16.1 s

0/100

10%

TBT (Total Blocking Time)

Value4,540 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value18.0 s

3/100

10%

Network Requests Diagram

unishanoi.org

342 ms

www.unishanoi.org

1245 ms

styles.cfm

164 ms

ss.css

21 ms

jquery.min.js

22 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 44% of them (38 requests) were addressed to the original Unishanoi.org, 17% (15 requests) were made to Data2.finalsite.com and 13% (11 requests) were made to Newjs.finalsite.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Use.typekit.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 725.8 kB (9%)

Content Size

7.6 MB

After Optimization

6.9 MB

In fact, the total size of Unishanoi.org main page is 7.6 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. 65% of websites need less resources to load. Images take 6.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 107.5 kB

  • Original 127.2 kB
  • After minification 114.5 kB
  • After compression 19.7 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 107.5 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 7.0 kB

  • Original 6.6 MB
  • After minification 6.6 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. UNIS Hanoi images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 372.5 kB

  • Original 609.8 kB
  • After minification 563.7 kB
  • After compression 237.3 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 372.5 kB or 61% of the original size.

CSS Optimization

-85%

Potential reduce by 238.8 kB

  • Original 280.7 kB
  • After minification 213.3 kB
  • After compression 41.9 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. Unishanoi.org needs all CSS files to be minified and compressed as it can save up to 238.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (47%)

Requests Now

79

After Optimization

42

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of UNIS Hanoi. 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 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

unishanoi.org accessibility score

82

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-*] attributes do not have valid values

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.

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

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

Best Practices

unishanoi.org 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

unishanoi.org SEO score

93

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

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Unishanoi.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Unishanoi.org main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of UNIS Hanoi. 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: