3.3 sec in total
607 ms
2.4 sec
295 ms
Click here to check amazing Uni Koeln content for Germany. Otherwise, check out these important facts you probably never knew about uni-koeln.de
Die Universität zu Köln ist eine Hochschule mit dem klassischen Fächerspektrum einer Volluniversität. Als eine der größten Hochschulen Europas arbeitet sie in Forschung und Lehre auch international au...
Visit uni-koeln.deWe analyzed Uni-koeln.de page load time and found that the first response time was 607 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
uni-koeln.de performance score
name
value
score
weighting
Value2.2 s
78/100
10%
Value5.0 s
26/100
25%
Value3.4 s
90/100
10%
Value300 ms
79/100
30%
Value0.267
46/100
15%
Value4.4 s
84/100
10%
607 ms
930 ms
189 ms
190 ms
367 ms
Our browser made a total of 33 requests to load all elements on the main page. We found that 97% of them (32 requests) were addressed to the original Uni-koeln.de, 3% (1 request) were made to Piwik.rrz.uni-koeln.de. The less responsive or slowest element that took the longest time to load (930 ms) belongs to the original domain Uni-koeln.de.
Page size can be reduced by 760.9 kB (35%)
2.2 MB
1.4 MB
In fact, the total size of Uni-koeln.de main page is 2.2 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. 40% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 99.6 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. This page needs HTML code to be minified as it can gain 27.7 kB, which is 24% 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 99.6 kB or 88% of the original size.
Potential reduce by 30.8 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 Koeln images are well optimized though.
Potential reduce by 195.2 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 195.2 kB or 68% of the original size.
Potential reduce by 435.2 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-koeln.de needs all CSS files to be minified and compressed as it can save up to 435.2 kB or 87% of the original size.
We found no issues to fix!
32
32
The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Uni Koeln. According to our analytics all requests are already optimized.
uni-koeln.de
607 ms
style.out.css
930 ms
aenderung.css
189 ms
modernizr.min.js
190 ms
scripts.min.js
367 ms
svg-sprite.min.svg
550 ms
linkedin.svg
108 ms
itunes.svg
112 ms
instagram.svg
111 ms
piwik.js
660 ms
modakk_Studierende_Allgemein_1440x600.jpg
190 ms
modakk_Studienwechsler_1440x600.jpg
560 ms
modakk_Studienanfaenger_1440x600.jpg
559 ms
modakk_Lehrende_1440x600.jpg
550 ms
modakk_Mitarbeitende_1440x600.jpg
563 ms
nt_eu_flagge_moonrun_Fotolia.jpg
285 ms
bildwissenschaft_stadion.jpg
379 ms
nt_20160204_bettwanzen.jpg
472 ms
20160121_krebsfossil.jpg
525 ms
nt_20160219_ceres_digitaltransform.jpg
566 ms
nachrichten3_320.jpg
629 ms
exzellenz_ma%C3%9Fnahme_1_16-9-320.jpg
641 ms
exzellenz_ma%C3%9Fnahme_2_16-9-320.jpg
654 ms
exzellenz_ma%C3%9Fnahme_3_16-9-320.jpg
656 ms
exzellenz_ma%C3%9Fnahme_4_16-9-320.jpg
657 ms
exzellenz_ma%C3%9Fnahme_5_16-9-320.jpg
665 ms
exzellenz_ma%C3%9Fnahme_6_16-9-320.jpg
710 ms
exzellenz_ma%C3%9Fnahme_7_16-9-320.jpg
733 ms
Teaser_kinderuni16_320x180.jpg
836 ms
OpenSans-Regular-webfont.woff
744 ms
OpenSans-Bold-webfont.woff
760 ms
OpenSans-Semibold-webfont.woff
760 ms
OpenSans-BoldItalic-webfont.woff
797 ms
uni-koeln.de 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
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-koeln.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
uni-koeln.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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-koeln.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-koeln.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-koeln.de
Open Graph description is not detected on the main page of Uni Koeln. 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: