Access biol.hkbu.edu.hk. Home | Department of Biology, Hong Kong Baptist University

name

value

score

weighting

FCP (First Contentful Paint)

Value7.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value33.1 s

0/100

25%

SI (Speed Index)

Value15.6 s

0/100

10%

TBT (Total Blocking Time)

Value610 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.158

73/100

15%

TTI (Time to Interactive)

Value12.6 s

14/100

10%

biol.hkbu.edu.hk

698 ms

biol.hkbu.edu.hk

1443 ms

layout.css

436 ms

editor.css

654 ms

4383f0799d9070f503268d10375367c7.css

872 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 95% of them (114 requests) were addressed to the original Biol.hkbu.edu.hk, 3% (4 requests) were made to Fonts.gstatic.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Biol.hkbu.edu.hk.

Content Size

17.6 MB

After Optimization

16.0 MB

In fact, the total size of Biol.hkbu.edu.hk main page is 17.6 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 17.0 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 91.4 kB

Original 107.4 kB
After minification 94.9 kB
After compression 16.0 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. This page needs HTML code to be minified as it can gain 12.5 kB, which is 12% 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 91.4 kB or 85% of the original size.

Image Optimization

-7%

Potential reduce by 1.1 MB

Original 17.0 MB
After minification 15.9 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. Biol Hkbu images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 313.7 kB

Original 428.1 kB
After minification 399.5 kB
After compression 114.5 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 313.7 kB or 73% of the original size.

CSS Optimization

-84%

Potential reduce by 56.5 kB

Original 67.0 kB
After minification 62.6 kB
After compression 10.5 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. Biol.hkbu.edu.hk needs all CSS files to be minified and compressed as it can save up to 56.5 kB or 84% of the original size.

Requests Now

114

After Optimization

The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biol Hkbu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Links do not have a discernible name

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

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Document doesn't have a valid hreflang

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

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 Biol.hkbu.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 Biol.hkbu.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

biol.hkbu.edu.hk

Open Graph description is not detected on the main page of Biol Hkbu. 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

Home | Department of Biology, Hong Kong Baptist University

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

biol.hkbu.edu.hk

biol.hkbu.edu.hk

layout.css

editor.css

4383f0799d9070f503268d10375367c7.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

biol.hkbu.edu.hk

biol.hkbu.edu.hk

layout.css

editor.css

4383f0799d9070f503268d10375367c7.css

jquery.js

jquery-ui.js

jquery-migrate.js

validator.class.js

jquery.Slider.js

jquery.ellipsis.js

jquery.table.js

lang.js

function.js

init.js

css2

addthis_widget.js

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