Tools & Wizards About Us

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

space.hku.hk

HKU SPACE - Part-time and Full-time Award-bearing, Professional, CEF and Short Courses

Page Load Speed

11.2 sec in total

First Response

1.7 sec

Resources Loaded

9.4 sec

Page Rendered

153 ms

About Website

Click here to check amazing SPACE HKU content for China. Otherwise, check out these important facts you probably never knew about space.hku.hk

Provides Full-time and Part-time courses ranging from short courses, professional courses, certificate, bachelor, master to doctoral programmes

Visit space.hku.hk

Key Findings

We analyzed Space.hku.hk page load time and found that the first response time was 1.7 sec and then it took 9.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

space.hku.hk performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value30.2 s

0/100

25%

SI (Speed Index)

Value19.0 s

0/100

10%

TBT (Total Blocking Time)

Value1,650 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.387

27/100

15%

TTI (Time to Interactive)

Value27.6 s

0/100

10%

Network Requests Diagram

space.hku.hk

1698 ms

hkuspace.hku.hk

3237 ms

space-reset.css

482 ms

jquery-ui-1.7.2.custom.css

926 ms

jquery.tooltip.css

711 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Space.hku.hk, 94% (84 requests) were made to Hkuspace.hku.hk and 3% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Hkuspace.hku.hk.

Page Optimization Overview & Recommendations

Page size can be reduced by 879.1 kB (62%)

Content Size

1.4 MB

After Optimization

534.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Space.hku.hk main page is 1.4 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. 40% of websites need less resources to load. Javascripts take 510.1 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 100.3 kB

  • Original 114.2 kB
  • After minification 71.0 kB
  • After compression 13.9 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 43.3 kB, which is 38% 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 100.3 kB or 88% of the original size.

Image Optimization

-33%

Potential reduce by 164.6 kB

  • Original 495.0 kB
  • After minification 330.4 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. Obviously, SPACE HKU needs image optimization as it can save up to 164.6 kB or 33% 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 363.3 kB

  • Original 510.1 kB
  • After minification 486.1 kB
  • After compression 146.8 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 363.3 kB or 71% of the original size.

CSS Optimization

-85%

Potential reduce by 250.8 kB

  • Original 294.3 kB
  • After minification 246.6 kB
  • After compression 43.5 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. Space.hku.hk needs all CSS files to be minified and compressed as it can save up to 250.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 57 (66%)

Requests Now

86

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SPACE HKU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

space.hku.hk accessibility score

74

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 input fields do not have accessible names

High

[role]s are not contained by their required parent element

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.

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

space.hku.hk best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

space.hku.hk SEO score

81

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Space.hku.hk 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 Space.hku.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 SPACE HKU. 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: