Tools & Wizards About Us
bcs-facs.org screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    64% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

bcs-facs.org

FACS (Formal Aspects of Computing Science) group | BCS

Page Load Speed

2.1 sec in total

First Response

148 ms

Resources Loaded

1.4 sec

Page Rendered

467 ms

bcs-facs.org screenshot

About Website

Welcome to bcs-facs.org homepage info - get ready to check BCS FACS best content right away, or after learning these important things about bcs-facs.org

We are a community of practitioners and researchers interested in Formal Aspects of Computing Science.

Visit bcs-facs.org

Key Findings

We analyzed Bcs-facs.org page load time and found that the first response time was 148 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

bcs-facs.org performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value280 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.5 s

48/100

10%

Network Requests Diagram

facs.bcs.org

148 ms

facs-formal-aspects-of-computing-science-group

147 ms

bootstrap.min.css

60 ms

style.css

64 ms

styles.min.css

37 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Bcs-facs.org, 2% (1 request) were made to Facs.bcs.org and 2% (1 request) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (241 ms) relates to the external source Bcs.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 130.8 kB (15%)

Content Size

865.6 kB

After Optimization

734.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bcs-facs.org main page is 865.6 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. 65% of websites need less resources to load. Images take 459.6 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 65.6 kB

  • Original 76.5 kB
  • After minification 44.1 kB
  • After compression 10.9 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 32.3 kB, which is 42% 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 65.6 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 459.6 kB
  • After minification 459.6 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. BCS FACS images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 32.0 kB

  • Original 228.8 kB
  • After minification 228.8 kB
  • After compression 196.8 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 32.0 kB or 14% of the original size.

CSS Optimization

-33%

Potential reduce by 33.2 kB

  • Original 100.8 kB
  • After minification 100.8 kB
  • After compression 67.5 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. Bcs-facs.org needs all CSS files to be minified and compressed as it can save up to 33.2 kB or 33% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (59%)

Requests Now

37

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BCS FACS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

facs.bcs.org

facs.bcs.org

148 ms

facs-formal-aspects-of-computing-science-group

facs-formal-aspects-of-computing-science-group

147 ms

bootstrap.min.css

bootstrap.min.css

60 ms

style.css

style.css

64 ms

styles.min.css

styles.min.css

37 ms

jquery-2.2.4.js

jquery-2.2.4.js

59 ms

html5shiv.min.js

html5shiv.min.js

79 ms

jquery.selectbox.min.js

jquery.selectbox.min.js

78 ms

clipboard.min.js

clipboard.min.js

81 ms

plyr.polyfilled.min.js

plyr.polyfilled.min.js

78 ms

cookieControl-9.x.min.js

cookieControl-9.x.min.js

77 ms

optimize.js

optimize.js

79 ms

vb-certificate-v1.js

vb-certificate-v1.js

198 ms

plugins.min.js

plugins.min.js

103 ms

ofi.min.js

ofi.min.js

113 ms

global.js

global.js

112 ms

fffix.js

fffix.js

181 ms

site.js

site.js

241 ms

animatein.js

animatein.js

181 ms

home.js

home.js

181 ms

https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F820552199%2F210410028779%2F1%2Foriginal.20240805-100829

https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F820552199%2F210410028779%2F1%2Foriginal.20240805-100829

109 ms

black-logo-main.png

black-logo-main.png

99 ms

arrow-thin-midGreen.svg

arrow-thin-midGreen.svg

96 ms

navigation-membership-member.png

navigation-membership-member.png

98 ms

navigation-membership-citp.png

navigation-membership-citp.png

99 ms

young-careers.png

young-careers.png

95 ms

navigation-qualifications-swt.png

navigation-qualifications-swt.png

99 ms

navigation-qualifications-skills.png

navigation-qualifications-skills.png

99 ms

navigation-events-calendar.png

navigation-events-calendar.png

142 ms

navigation-articles-people.png

navigation-articles-people.png

127 ms

jonathan-bowen-1.jpg

jonathan-bowen-1.jpg

237 ms

arrow-right-white.svg

arrow-right-white.svg

145 ms

crest.png

crest.png

147 ms

facebook.png

facebook.png

168 ms

x-logo-black.png

x-logo-black.png

185 ms

linkedin.png

linkedin.png

183 ms

youtube.png

youtube.png

220 ms

instagram.png

instagram.png

182 ms

DINNextLTPro-Regular.woff

DINNextLTPro-Regular.woff

118 ms

DINNextLTPro-Medium.woff

DINNextLTPro-Medium.woff

130 ms

DINNextLTPro-Light.woff

DINNextLTPro-Light.woff

134 ms

DINNextLTPro-Bold.woff

DINNextLTPro-Bold.woff

146 ms

icomoon.ttf

icomoon.ttf

147 ms

print.css

print.css

43 ms

Accessibility Review

bcs-facs.org accessibility score

88

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

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

bcs-facs.org 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

SEO Factors

bcs-facs.org SEO score

99

Search Engine Optimization Advices

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bcs-facs.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Bcs-facs.org 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

bcs-facs.org

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