6.2 sec in total
1.2 sec
4.7 sec
226 ms
Visit wim.uni-koeln.de now to see the best up-to-date WIM Uni Koeln content for Germany and also check out these interesting facts you probably never knew about wim.uni-koeln.de
Visit wim.uni-koeln.deWe analyzed Wim.uni-koeln.de page load time and found that the first response time was 1.2 sec and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
wim.uni-koeln.de performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value7.3 s
5/100
25%
Value6.9 s
34/100
10%
Value160 ms
93/100
30%
Value0.22
57/100
15%
Value11.4 s
19/100
10%
1204 ms
98 ms
188 ms
191 ms
196 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 95% of them (37 requests) were addressed to the original Wim.uni-koeln.de, 3% (1 request) were made to Wim-publications.uni-koeln.de and 3% (1 request) were made to Piwik.rrz.uni-koeln.de. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Wim.uni-koeln.de.
Page size can be reduced by 1.2 MB (58%)
2.0 MB
838.2 kB
In fact, the total size of Wim.uni-koeln.de main page is 2.0 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. 30% of websites need less resources to load. Javascripts take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 24.1 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 4.7 kB, which is 15% 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 24.1 kB or 76% of the original size.
Potential reduce by 17.4 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, WIM Uni Koeln needs image optimization as it can save up to 17.4 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.1 MB
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 1.1 MB or 61% of the original size.
Potential reduce by 64.2 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. Wim.uni-koeln.de needs all CSS files to be minified and compressed as it can save up to 64.2 kB or 80% of the original size.
Number of requests can be reduced by 14 (37%)
38
24
The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of WIM Uni Koeln. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
1204 ms
news-basic.css
98 ms
stylesheet_a70d56630c.css
188 ms
CssDemo.css
191 ms
base.css
196 ms
tt_address.css
288 ms
tt_news_CD2011.css
284 ms
1.css
291 ms
newsStyle.css
295 ms
stylesheet_3038cea93b.css
292 ms
jquery-2.1.x-1.10.x-1.2.x-3.0.x.js
699 ms
javascript_dd82474708.js
377 ms
kiwi_accordion.js
380 ms
loadPubEntries.js
378 ms
hyphenator.js
2114 ms
bg_head.png
1365 ms
siegel.png
1364 ms
equis_90x90.png
1362 ms
search.png
1365 ms
bg_navi.png
1363 ms
dot_root.gif
1366 ms
bg_wrapper.png
1366 ms
facebook_32.png
1366 ms
twitter_32.png
1367 ms
linkedin_32.gif
1368 ms
xing_32.png
1368 ms
rss_feed.png
1371 ms
nilter_button.jpg
1368 ms
arrow.gif
1369 ms
csm_lehreSchoder_01_c2a2d9420f.png
1371 ms
csm_profil_03_566a7009ae.png
1373 ms
2013-08-29Lehrstuhl_klein.png
1376 ms
Kooperationspartner_218_58.png
1372 ms
csm_Cover_Auflage3_16217470bc.png
1371 ms
csm_KISocialMediaCover_2d5b2a7b20.png
1373 ms
bg_footer.png
98 ms
pipe.gif
99 ms
piwik.js
471 ms
print.css
97 ms
wim.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
Image elements do not have [alt] attributes
wim.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
Page has valid source maps
wim.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
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Wim.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 Wim.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.
wim.uni-koeln.de
Open Graph description is not detected on the main page of WIM 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: