Report Summary

  • 22

    Performance

    Renders faster than
    41% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 85% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

canvas.cityu.edu.hk

City University of Hong Kong - Sign In

Page Load Speed

5.5 sec in total

First Response

893 ms

Resources Loaded

4.5 sec

Page Rendered

128 ms

canvas.cityu.edu.hk screenshot

About Website

Welcome to canvas.cityu.edu.hk homepage info - get ready to check Canvas City U best content for China right away, or after learning these important things about canvas.cityu.edu.hk

Visit canvas.cityu.edu.hk

Key Findings

We analyzed Canvas.cityu.edu.hk page load time and found that the first response time was 893 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

canvas.cityu.edu.hk performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value12.1 s

3/100

10%

TBT (Total Blocking Time)

Value1,320 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

canvas.cityu.edu.hk

893 ms

canvas.cityu.edu.hk

922 ms

login

248 ms

ldap

319 ms

common-3a1c1e4d29.css

106 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 29% of them (6 requests) were addressed to the original Canvas.cityu.edu.hk, 29% (6 requests) were made to Du11hjcvx0uqb.cloudfront.net and 14% (3 requests) were made to Instructure-uploads-apse1.s3-ap-southeast-1.amazonaws.com. The less responsive or slowest element that took the longest time to load (972 ms) relates to the external source Instructure-uploads-apse1.s3-ap-southeast-1.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.1 MB (72%)

Content Size

2.9 MB

After Optimization

788.6 kB

In fact, the total size of Canvas.cityu.edu.hk main page is 2.9 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. 25% of websites need less resources to load. Javascripts take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 16.6 kB

  • Original 23.9 kB
  • After minification 22.2 kB
  • After compression 7.2 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. 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 16.6 kB or 70% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 4.6 kB
  • After minification 4.6 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. Canvas City U images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 1.7 MB

  • Original 2.4 MB
  • After minification 2.4 MB
  • After compression 708.6 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 1.7 MB or 71% of the original size.

CSS Optimization

-84%

Potential reduce by 347.9 kB

  • Original 416.2 kB
  • After minification 414.4 kB
  • After compression 68.3 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. Canvas.cityu.edu.hk needs all CSS files to be minified and compressed as it can save up to 347.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (63%)

Requests Now

16

After Optimization

6

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Canvas City U. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

canvas.cityu.edu.hk accessibility score

94

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

canvas.cityu.edu.hk 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

Page has valid source maps

SEO Factors

canvas.cityu.edu.hk SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Canvas.cityu.edu.hk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Canvas.cityu.edu.hk 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 description is not detected on the main page of Canvas City U. 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: