3.5 sec in total
399 ms
3 sec
113 ms
Welcome to collide.info homepage info - get ready to check Collide best content for Germany right away, or after learning these important things about collide.info
Visit collide.infoWe analyzed Collide.info page load time and found that the first response time was 399 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
collide.info performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value4.0 s
50/100
25%
Value5.1 s
61/100
10%
Value0 ms
100/100
30%
Value0.009
100/100
15%
Value4.0 s
88/100
10%
399 ms
721 ms
191 ms
194 ms
199 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 96% of them (51 requests) were addressed to the original Collide.info, 4% (2 requests) were made to Piwik.collide.info. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Collide.info.
Page size can be reduced by 245.8 kB (19%)
1.3 MB
1.1 MB
In fact, the total size of Collide.info main page is 1.3 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. 15% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 11.6 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 11.6 kB or 73% of the original size.
Potential reduce by 98.1 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. Collide images are well optimized though.
Potential reduce by 81.0 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 81.0 kB or 70% of the original size.
Potential reduce by 55.1 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. Collide.info needs all CSS files to be minified and compressed as it can save up to 55.1 kB or 80% of the original size.
Number of requests can be reduced by 33 (65%)
51
18
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Collide. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.
collide.info
399 ms
www.collide.info
721 ms
book.css
191 ms
node.css
194 ms
poll.css
199 ms
defaults.css
200 ms
system.css
300 ms
system-menus.css
198 ms
user.css
285 ms
content-module.css
286 ms
ctools.css
295 ms
date.css
299 ms
datepicker.css
297 ms
filefield.css
381 ms
panels.css
380 ms
farbtastic.css
391 ms
calendar.css
392 ms
biblio.css
395 ms
fieldgroup.css
394 ms
views.css
473 ms
dcaldav.css
477 ms
style.css
687 ms
jquery.js
630 ms
drupal.js
590 ms
panels.js
492 ms
jquery.cycle.all.js
860 ms
hoverIntent.js
576 ms
superfish.js
591 ms
body-bg.gif
103 ms
logo.gif
99 ms
en.png
104 ms
de.png
105 ms
menu-bg.gif
103 ms
menu-left-bg.gif
104 ms
menu-right-bg.gif
196 ms
slideshow-shadow.gif
547 ms
wordl.jpg
501 ms
modellingTools.jpg
403 ms
networks.png
1053 ms
InformalLearning.jpg
542 ms
seriousgames.jpg
488 ms
CiC.jpg
606 ms
blendedLearning.jpg
684 ms
lapa2.jpg
740 ms
learningDesign.png
1042 ms
mobileLearning.jpg
747 ms
lf.jpg
810 ms
COLLIDE_0.png
783 ms
menu-leaf.gif
835 ms
piwik.js
637 ms
arrows-ffffff.png
823 ms
shadow.png
856 ms
piwik.php
183 ms
collide.info accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
collide.info best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
collide.info SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
DE
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Collide.info can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Collide.info 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.
collide.info
Open Graph description is not detected on the main page of Collide. 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: