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lces.osa.cuhk.edu.hk screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

lces.osa.cuhk.edu.hk

Learning and Cultural Enhancement Section, Office of Student Affairs

Page Load Speed

7.8 sec in total

First Response

1.3 sec

Resources Loaded

6.3 sec

Page Rendered

231 ms

lces.osa.cuhk.edu.hk screenshot

About Website

Visit lces.osa.cuhk.edu.hk now to see the best up-to-date Lces Osa Cuhk content for China and also check out these interesting facts you probably never knew about lces.osa.cuhk.edu.hk

The Learning and Cultural Enhancement Section (LCES) of the Office of Student Affairs, The Chinese University of Hong Kong is committed to offering academic counselling and related support services to...

Visit lces.osa.cuhk.edu.hk

Key Findings

We analyzed Lces.osa.cuhk.edu.hk page load time and found that the first response time was 1.3 sec and then it took 6.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

lces.osa.cuhk.edu.hk performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value28.0 s

0/100

25%

SI (Speed Index)

Value16.0 s

0/100

10%

TBT (Total Blocking Time)

Value3,880 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

lces.osa.cuhk.edu.hk

1251 ms

js

67 ms

style.min.css

252 ms

style.css

501 ms

page-list.css

742 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 63% of them (47 requests) were addressed to the original Lces.osa.cuhk.edu.hk, 13% (10 requests) were made to Youtube.com and 4% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Lces.osa.cuhk.edu.hk.

Page Optimization Overview & Recommendations

Page size can be reduced by 440.0 kB (16%)

Content Size

2.8 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lces.osa.cuhk.edu.hk main page is 2.8 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. 60% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 69.8 kB

  • Original 83.8 kB
  • After minification 77.7 kB
  • After compression 14.0 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 69.8 kB or 83% of the original size.

Image Optimization

-16%

Potential reduce by 358.3 kB

  • Original 2.3 MB
  • After minification 1.9 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. Obviously, Lces Osa Cuhk needs image optimization as it can save up to 358.3 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 6.0 kB

  • Original 318.8 kB
  • After minification 318.8 kB
  • After compression 312.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-6%

Potential reduce by 5.8 kB

  • Original 98.2 kB
  • After minification 97.5 kB
  • After compression 92.4 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. Lces.osa.cuhk.edu.hk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 40 (56%)

Requests Now

71

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lces Osa Cuhk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lces.osa.cuhk.edu.hk

lces.osa.cuhk.edu.hk

1251 ms

js

js

67 ms

style.min.css

style.min.css

252 ms

style.css

style.css

501 ms

page-list.css

page-list.css

742 ms

reset.css

reset.css

746 ms

default.css

default.css

746 ms

jquery.bxslider.custom.css

jquery.bxslider.custom.css

748 ms

style.css

style.css

751 ms

mobile.css

mobile.css

748 ms

css

css

28 ms

css

css

40 ms

frontend-gtag.min.js

frontend-gtag.min.js

988 ms

jquery.min.js

jquery.min.js

1242 ms

jquery-migrate.min.js

jquery-migrate.min.js

993 ms

jquery.bxslider.custom.css

jquery.bxslider.custom.css

993 ms

minimalist.css

minimalist.css

222 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

995 ms

custom-slider.js

custom-slider.js

998 ms

custom-slider-extra.js

custom-slider-extra.js

1232 ms

custom.js

custom.js

1239 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

1240 ms

course-slider.js

course-slider.js

1276 ms

clippath.min.js

clippath.min.js

1277 ms

custom-home.js

custom-home.js

1503 ms

css

css

12 ms

header-bg.png

header-bg.png

931 ms

logo-cuhk-emblem@2x.png

logo-cuhk-emblem@2x.png

1066 ms

logo-lces@2x.png

logo-lces@2x.png

598 ms

icon-lang-en-new@2x.png

icon-lang-en-new@2x.png

562 ms

icon-arrow-down-white@2x.png

icon-arrow-down-white@2x.png

563 ms

icon-contactus@2x.png

icon-contactus@2x.png

599 ms

sdk.js

sdk.js

69 ms

search@2x.png

search@2x.png

583 ms

header-bottom-deco@2x.png

header-bottom-deco@2x.png

582 ms

YyvmeuDovJk

YyvmeuDovJk

142 ms

Off-campus-housing-web-banner-1.png

Off-campus-housing-web-banner-1.png

1845 ms

Hiu-Man-Web-Banner.png

Hiu-Man-Web-Banner.png

2016 ms

Study-Plan-Clinic-web-banner.png

Study-Plan-Clinic-web-banner.png

1292 ms

UrHeard-banner_May2022.png

UrHeard-banner_May2022.png

2756 ms

Vlog@CUHK_Web-Banner-scaled.jpg

Vlog@CUHK_Web-Banner-scaled.jpg

1291 ms

home-slider-caption-bg.png

home-slider-caption-bg.png

1291 ms

icon-more-grey@2x.png

icon-more-grey@2x.png

1505 ms

orange-underline.png

orange-underline.png

1512 ms

home-block-photo-2@2x.png

home-block-photo-2@2x.png

1522 ms

home-block-photo-3@2x.png

home-block-photo-3@2x.png

1754 ms

home-block-photo-4@2x.png

home-block-photo-4@2x.png

1762 ms

home-block-photo-5@2x.png

home-block-photo-5@2x.png

1770 ms

home-block-photo-6@2x.png

home-block-photo-6@2x.png

2002 ms

font

font

58 ms

footer-bg.png

footer-bg.png

1977 ms

icon-back-to-top@2x.png

icon-back-to-top@2x.png

1980 ms

font

font

23 ms

sdk.js

sdk.js

32 ms

404 ms

www-player.css

www-player.css

7 ms

www-embed-player.js

www-embed-player.js

34 ms

base.js

base.js

79 ms

ad_status.js

ad_status.js

207 ms

lRD2l4-46JdqU-7HFYhayVchQVTIzCm1tC7QKLY7RXI.js

lRD2l4-46JdqU-7HFYhayVchQVTIzCm1tC7QKLY7RXI.js

143 ms

embed.js

embed.js

57 ms

iframe_api

iframe_api

54 ms

bx_loader.gif

bx_loader.gif

1536 ms

icon-slider-prev@2x.png

icon-slider-prev@2x.png

1698 ms

icon-slider-next@2x.png

icon-slider-next@2x.png

1707 ms

id

id

31 ms

www-widgetapi.js

www-widgetapi.js

16 ms

Create

Create

37 ms

qoe

qoe

28 ms

log_event

log_event

1 ms

YyvmeuDovJk

YyvmeuDovJk

217 ms

Create

Create

116 ms

RnAEGhf-XX_BTbKPyrocfzPG9wxH_4lxfCPxVnxswRc.js

RnAEGhf-XX_BTbKPyrocfzPG9wxH_4lxfCPxVnxswRc.js

50 ms

id

id

16 ms

GenerateIT

GenerateIT

14 ms

Accessibility Review

lces.osa.cuhk.edu.hk accessibility score

86

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

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

Links do not have a discernible name

Best Practices

lces.osa.cuhk.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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

lces.osa.cuhk.edu.hk SEO score

83

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

Document doesn't have a valid hreflang

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 Lces.osa.cuhk.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 Lces.osa.cuhk.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

lces.osa.cuhk.edu.hk

Open Graph description is not detected on the main page of Lces Osa Cuhk. 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: