2.7 sec in total
321 ms
2.2 sec
190 ms
Click here to check amazing Tzi content for Germany. Otherwise, check out these important facts you probably never knew about tzi.de
Das Technologie-Zentrum Informatik und Informationstechnik (TZI) der Universität Bremen steht mit seinen Forschungsthemen im Zentrum eines massiven Umbruchs in der Gesellschaft: Die digitale Revolutio...
Visit tzi.deWe analyzed Tzi.de page load time and found that the first response time was 321 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
tzi.de performance score
name
value
score
weighting
Value3.0 s
49/100
10%
Value5.3 s
21/100
25%
Value5.8 s
50/100
10%
Value1,240 ms
19/100
30%
Value0.123
83/100
15%
Value5.9 s
66/100
10%
321 ms
924 ms
439 ms
309 ms
424 ms
Our browser made a total of 14 requests to load all elements on the main page. We found that all of those requests were addressed to Tzi.de and no external sources were called. The less responsive or slowest element that took the longest time to load (924 ms) belongs to the original domain Tzi.de.
Page size can be reduced by 72.2 kB (63%)
115.0 kB
42.8 kB
In fact, the total size of Tzi.de main page is 115.0 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. Only 5% of websites need less resources to load. Javascripts take 44.7 kB which makes up the majority of the site volume.
Potential reduce by 8.6 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 2.1 kB, which is 18% 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 8.6 kB or 72% of the original size.
Potential reduce by 962 B
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. Tzi images are well optimized though.
Potential reduce by 24.5 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 24.5 kB or 55% of the original size.
Potential reduce by 38.1 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. Tzi.de needs all CSS files to be minified and compressed as it can save up to 38.1 kB or 86% of the original size.
We found no issues to fix!
12
12
The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tzi. According to our analytics all requests are already optimized.
tzi.de
321 ms
www.tzi.de
924 ms
stylesheet_076579ea8f.css
439 ms
css01.css
309 ms
mootools.v1.11.js
424 ms
javascript_0b12553063.js
499 ms
404.html
104 ms
header-input-submit.png
123 ms
logo-tzi.png
119 ms
365_Orte.jpg
118 ms
index.php
333 ms
index.php
536 ms
right-headline.png
119 ms
logo-uni.png
220 ms
tzi.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
[role]s are not contained by their required parent element
tzi.de best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
tzi.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
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tzi.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Tzi.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.
tzi.de
Open Graph description is not detected on the main page of Tzi. 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: