3 sec in total
299 ms
2.6 sec
107 ms
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Universität Osnabrück
Visit ub.uni-osnabrueck.deWe analyzed Ub.uni-osnabrueck.de page load time and found that the first response time was 299 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.
ub.uni-osnabrueck.de performance score
name
value
score
weighting
Value2.5 s
67/100
10%
Value3.5 s
64/100
25%
Value6.8 s
35/100
10%
Value60 ms
100/100
30%
Value0.052
99/100
15%
Value2.9 s
96/100
10%
299 ms
729 ms
301 ms
303 ms
297 ms
Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Ub.uni-osnabrueck.de and no external sources were called. The less responsive or slowest element that took the longest time to load (729 ms) belongs to the original domain Ub.uni-osnabrueck.de.
Page size can be reduced by 105.1 kB (33%)
317.6 kB
212.6 kB
In fact, the total size of Ub.uni-osnabrueck.de main page is 317.6 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. 15% of websites need less resources to load. Images take 203.1 kB which makes up the majority of the site volume.
Potential reduce by 863 B
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 367 B, which is 25% 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 863 B or 59% of the original size.
Potential reduce by 28.3 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, UB Uni Osnabrueck needs image optimization as it can save up to 28.3 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 70.6 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 70.6 kB or 66% of the original size.
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. Ub.uni-osnabrueck.de needs all CSS files to be minified and compressed as it can save up to 5.3 kB or 80% of the original size.
We found no issues to fix!
16
16
The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of UB Uni Osnabrueck. According to our analytics all requests are already optimized.
ub.uni-osnabrueck.de
299 ms
www.ub.uni-osnabrueck.de
729 ms
inhalt.html
301 ms
start.html
303 ms
ub_new.css
297 ms
ublogo1.gif
312 ms
jquery-1.7.2.min.js
689 ms
lightbox.js
309 ms
lightbox.css
309 ms
dreieck42.gif
300 ms
rsslogo.png
300 ms
ub_pollert_1693x_webbanner.jpg
496 ms
ub_g_001_webbanner.jpg
499 ms
cbib_jw.jpg
499 ms
neubau_barbarastr_030_webbanner.jpg
503 ms
lange_nacht_2016_thumb.jpg
303 ms
loading.gif
299 ms
close.png
573 ms
ub.uni-osnabrueck.de accessibility score
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
Form elements do not have associated labels
Links do not have a discernible name
ub.uni-osnabrueck.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
ub.uni-osnabrueck.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
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ub.uni-osnabrueck.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ub.uni-osnabrueck.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
ub.uni-osnabrueck.de
Open Graph description is not detected on the main page of UB Uni Osnabrueck. 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: