Access slcss.edu.hk. Shun Lee Catholic Secondary School

name

value

score

weighting

FCP (First Contentful Paint)

Value12.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value41.7 s

0/100

25%

SI (Speed Index)

Value31.5 s

0/100

10%

TBT (Total Blocking Time)

Value3,880 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value54.3 s

0/100

10%

slcss.edu.hk

891 ms

slcss.edu.hk

2041 ms

system.base.css

652 ms

system.menus.css

652 ms

system.messages.css

660 ms

Our browser made a total of 143 requests to load all elements on the main page. We found that 85% of them (122 requests) were addressed to the original Slcss.edu.hk, 5% (7 requests) were made to Youtube.com and 1% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (7.5 sec) belongs to the original domain Slcss.edu.hk.

Content Size

21.8 MB

After Optimization

19.9 MB

In fact, the total size of Slcss.edu.hk main page is 21.8 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. Only a small number of websites need less resources to load. Images take 20.6 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 81.4 kB

Original 97.6 kB
After minification 92.0 kB
After compression 16.3 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 81.4 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 1.2 MB

Original 20.6 MB
After minification 19.5 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. Slcss images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 411.3 kB

Original 717.6 kB
After minification 599.3 kB
After compression 306.3 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 411.3 kB or 57% of the original size.

CSS Optimization

-71%

Potential reduce by 237.6 kB

Original 336.8 kB
After minification 285.7 kB
After compression 99.2 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. Slcss.edu.hk needs all CSS files to be minified and compressed as it can save up to 237.6 kB or 71% of the original size.

Requests Now

134

After Optimization

The browser has sent 134 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slcss. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

High

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

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Links are not crawlable

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/).

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 Slcss.edu.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 Slcss.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

slcss.edu.hk

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Shun Lee Catholic Secondary School | 順利天主教中學

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

slcss.edu.hk

slcss.edu.hk

system.base.css

system.menus.css

system.messages.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

slcss.edu.hk

slcss.edu.hk

system.base.css

system.menus.css

system.messages.css

system.theme.css

field.css

node.css

search.css

user.css

views.css

ctools.css

jquery.min.js

jquery-extend-3.4.0.js

jquery-html-prefilter-3.5.0-backport.js

jquery.once.js

drupal.js

jquery_browser.js

entityreference.js

css2

css2

style2.css

mobile2.css

aos.css

jquery.min.js

font-awesome.min.css

animate.css

sina-nav2.css

ddaccordion.js

common.js

jquery.mousewheel-3.0.6.pack.js

jquery.fancybox.js

jquery.fancybox.css

jquery.fancybox-buttons.css

jquery.fancybox-buttons.js

jquery.fancybox-thumbs.css

jquery.fancybox-thumbs.js

jquery.fancybox-media.js

fancybox.js

jquery.bpopup.min.js

aos.js

jssor.css

slick.css