3.7 sec in total
636 ms
2.7 sec
292 ms
Visit irb.upb.de now to see the best up-to-date IRB Upb content for Germany and also check out these interesting facts you probably never knew about irb.upb.de
Umstellung auf OpenSuSE 42.1 erfolgt ab 2016-03-21.
Visit irb.upb.deWe analyzed Irb.upb.de page load time and found that the first response time was 636 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
irb.upb.de performance score
name
value
score
weighting
Value4.4 s
17/100
10%
Value7.4 s
4/100
25%
Value7.9 s
22/100
10%
Value270 ms
82/100
30%
Value0.057
98/100
15%
Value7.7 s
45/100
10%
636 ms
405 ms
592 ms
200 ms
201 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Irb.upb.de, 90% (38 requests) were made to Cs.uni-paderborn.de and 5% (2 requests) were made to Piwik.uni-paderborn.de. The less responsive or slowest element that took the longest time to load (636 ms) belongs to the original domain Irb.upb.de.
Page size can be reduced by 480.6 kB (65%)
736.2 kB
255.6 kB
In fact, the total size of Irb.upb.de main page is 736.2 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. 35% of websites need less resources to load. Javascripts take 282.4 kB which makes up the majority of the site volume.
Potential reduce by 40.6 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 7.6 kB, which is 16% 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 40.6 kB or 87% of the original size.
Potential reduce by 9.4 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. IRB Upb images are well optimized though.
Potential reduce by 197.4 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 197.4 kB or 70% of the original size.
Potential reduce by 233.3 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. Irb.upb.de needs all CSS files to be minified and compressed as it can save up to 233.3 kB or 88% of the original size.
Number of requests can be reduced by 26 (70%)
37
11
The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IRB Upb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
irb.upb.de
636 ms
irb.html
405 ms
irb.html
592 ms
news-basic.css
200 ms
normalize.css
201 ms
app.css
328 ms
upb.css
301 ms
magnific-popup.css
205 ms
upbperson.css
208 ms
color-3.css
297 ms
gallery.css
299 ms
modernizr.js
303 ms
jquery.min.js
523 ms
javascript_9a38f34785.js
396 ms
foundation.min.js
415 ms
jquery.hoverIntent.js
306 ms
responsive-tables.js
305 ms
slick.min.js
333 ms
magnific.js
518 ms
app.js
407 ms
jquery.lazyload.min.js
404 ms
gallery.js
464 ms
ausrufezeichen-gross.png
107 ms
pfeil_unten_grau.png
103 ms
lupe.png
102 ms
logo.png
104 ms
linkpfeil_weiss.png
104 ms
csm_Slider_CS_e8b600b634.jpg
339 ms
infow20.png
205 ms
csm_irb-logo_5beaf70c29.png
205 ms
zoomw20.png
201 ms
Signika.woff
291 ms
Signika-Bold.woff
198 ms
mainmenu-linie.png
279 ms
pfeil_breadcrumb.png
282 ms
side_nav_pfeil.png
281 ms
pageoptions.png
295 ms
icons-social.png
370 ms
pfeil_breadcrumb_letzer.png
339 ms
bild_footer.png
469 ms
piwik.js
404 ms
piwik.php
129 ms
irb.upb.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.
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
irb.upb.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
irb.upb.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 Irb.upb.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 Irb.upb.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.
irb.upb.de
Open Graph data is detected on the main page of IRB Upb. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: