5.5 sec in total
426 ms
3.6 sec
1.5 sec
Welcome to uni-duisburg-essen.de homepage info - get ready to check Uni Duisburg Essen best content for Germany right away, or after learning these important things about uni-duisburg-essen.de
Visit uni-duisburg-essen.deWe analyzed Uni-duisburg-essen.de page load time and found that the first response time was 426 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
uni-duisburg-essen.de performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value13.3 s
0/100
25%
Value7.1 s
31/100
10%
Value180 ms
92/100
30%
Value0.421
23/100
15%
Value40.8 s
0/100
10%
426 ms
459 ms
588 ms
339 ms
560 ms
Our browser made a total of 54 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Uni-duisburg-essen.de, 96% (52 requests) were made to Uni-due.de. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Uni-due.de.
Page size can be reduced by 770.1 kB (6%)
12.7 MB
12.0 MB
In fact, the total size of Uni-duisburg-essen.de main page is 12.7 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 12.2 MB which makes up the majority of the site volume.
Potential reduce by 69.3 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 23.8 kB, which is 29% 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 69.3 kB or 86% of the original size.
Potential reduce by 694.7 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. Uni Duisburg Essen images are well optimized though.
Potential reduce by 805 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.
Potential reduce by 5.3 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. Uni-duisburg-essen.de has all CSS files already compressed.
Number of requests can be reduced by 4 (11%)
38
34
The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Uni Duisburg Essen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
uni-duisburg-essen.de
426 ms
uni-duisburg-essen.de
459 ms
www.uni-due.de
588 ms
ude2017.min.css
339 ms
legacy.css
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prejquery.js
331 ms
jquery-ui.min.css
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MathJax.js
453 ms
complete.js
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UDE-logo-claim.svg
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ua-ruhr-header.png
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UDE-logo-claim-dark.svg
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TeX-AMS_CHTML.js
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open-sans-v15-latin-ext_latin-regular.woff
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open-sans-v15-latin-ext_latin-600.woff
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fa-regular-400.woff
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fa-light-300.woff
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fa-solid-900.woff
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fa-solid-900.woff
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open-sans-v15-latin-ext_latin-italic.woff
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config.js
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uni-duisburg-essen.de 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.
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
ARIA IDs are not unique
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
uni-duisburg-essen.de 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
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
uni-duisburg-essen.de 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
DE
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Uni-duisburg-essen.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Uni-duisburg-essen.de 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.
uni-duisburg-essen.de
Open Graph description is not detected on the main page of Uni Duisburg Essen. 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: