4.1 sec in total
688 ms
3.2 sec
179 ms
Click here to check amazing Cafe SIG Ulb content for Belgium. Otherwise, check out these important facts you probably never knew about cafesig.ulb.ac.be
Bienvenue !Ce site est développé dans le cadre de stages de formation en SIG libres donnés à l'Université Libre de Bruxelles, et financé par l'ARES. Il comprend : une collection de matériel ...
Visit cafesig.ulb.ac.beWe analyzed Cafesig.ulb.ac.be page load time and found that the first response time was 688 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
cafesig.ulb.ac.be performance score
name
value
score
weighting
Value5.4 s
6/100
10%
Value5.5 s
18/100
25%
Value7.7 s
25/100
10%
Value3,400 ms
2/100
30%
Value0
100/100
15%
Value11.5 s
18/100
10%
688 ms
1057 ms
180 ms
549 ms
384 ms
Our browser made a total of 20 requests to load all elements on the main page. We found that 90% of them (18 requests) were addressed to the original Cafesig.ulb.ac.be, 5% (1 request) were made to I.creativecommons.org and 5% (1 request) were made to Licensebuttons.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Cafesig.ulb.ac.be.
Page size can be reduced by 49.3 kB (30%)
163.9 kB
114.6 kB
In fact, the total size of Cafesig.ulb.ac.be main page is 163.9 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. 20% of websites need less resources to load. Javascripts take 87.2 kB which makes up the majority of the site volume.
Potential reduce by 43.8 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 6.2 kB, which is 11% 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 43.8 kB or 78% of the original size.
Potential reduce by 5.4 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. Obviously, Cafe SIG Ulb needs image optimization as it can save up to 5.4 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 121 B
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.
Number of requests can be reduced by 7 (47%)
15
8
The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cafe SIG Ulb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
cafesig.ulb.ac.be
688 ms
cafesig.ulb.ac.be
1057 ms
yui_combo.php
180 ms
all
549 ms
polyfill.min.js
384 ms
polyfill.js
287 ms
yui_combo.php
534 ms
javascript-static.js
286 ms
require.min.js
217 ms
88x31.png
217 ms
Cafesig_logo.png
254 ms
writer-24
146 ms
icon
143 ms
moodlelogo_grayhat
141 ms
collapsed
103 ms
88x31.png
37 ms
yui_combo.php
93 ms
fontawesome-webfont.woff
185 ms
first.js
491 ms
yui_combo.php
90 ms
cafesig.ulb.ac.be accessibility score
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
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[role]s are not contained by their required parent element
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
cafesig.ulb.ac.be best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
cafesig.ulb.ac.be SEO score
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
Document uses legible font sizes
Tap targets are not sized appropriately
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cafesig.ulb.ac.be can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Cafesig.ulb.ac.be 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.
cafesig.ulb.ac.be
Open Graph description is not detected on the main page of Cafe SIG Ulb. 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: