Report Summary

  • 49

    Performance

    Renders faster than
    68% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

sfac.edu.hk

聖芳濟各書院

Page Load Speed

4.4 sec in total

First Response

509 ms

Resources Loaded

3.7 sec

Page Rendered

238 ms

sfac.edu.hk screenshot

About Website

Click here to check amazing Sfac content for Hong Kong. Otherwise, check out these important facts you probably never knew about sfac.edu.hk

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Key Findings

We analyzed Sfac.edu.hk page load time and found that the first response time was 509 ms and then it took 3.9 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

sfac.edu.hk performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

79/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

1/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.816

4/100

15%

TTI (Time to Interactive)

Value6.6 s

57/100

10%

Network Requests Diagram

509 ms

jquery-1.4.4.min.js

663 ms

script.b5.js

437 ms

script.js

1106 ms

bg.jpg

657 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to Sfac.edu.hk and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Sfac.edu.hk.

Page Optimization Overview & Recommendations

Page size can be reduced by 179.9 kB (49%)

Content Size

364.0 kB

After Optimization

184.1 kB

In fact, the total size of Sfac.edu.hk main page is 364.0 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. Only 10% of websites need less resources to load. Javascripts take 214.3 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 5.0 kB

  • Original 7.6 kB
  • After minification 6.9 kB
  • After compression 2.6 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 5.0 kB or 66% of the original size.

Image Optimization

-6%

Potential reduce by 8.4 kB

  • Original 142.1 kB
  • After minification 133.7 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. Sfac images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 166.5 kB

  • Original 214.3 kB
  • After minification 163.5 kB
  • After compression 47.8 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 166.5 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sfac. According to our analytics all requests are already optimized.

Accessibility Review

sfac.edu.hk accessibility score

87

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.

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

sfac.edu.hk best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sfac.edu.hk SEO score

73

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sfac.edu.hk can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Sfac.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 Sfac. 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: