5.3 sec in total
363 ms
4.5 sec
386 ms
Welcome to etu.de homepage info - get ready to check ETU best content right away, or after learning these important things about etu.de
Herzlich Willkommen auf der Webseite ETU Software GmbH- in 50829 Köln
Visit etu.deWe analyzed Etu.de page load time and found that the first response time was 363 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
etu.de performance score
name
value
score
weighting
Value7.9 s
0/100
10%
Value20.0 s
0/100
25%
Value10.7 s
7/100
10%
Value300 ms
79/100
30%
Value0.604
10/100
15%
Value11.5 s
18/100
10%
363 ms
844 ms
94 ms
187 ms
279 ms
Our browser made a total of 56 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Etu.de, 95% (53 requests) were made to Hottgenroth.de and 2% (1 request) were made to Code.etracker.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Hottgenroth.de.
Page size can be reduced by 402.5 kB (36%)
1.1 MB
710.7 kB
In fact, the total size of Etu.de main page is 1.1 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. 35% of websites need less resources to load. Images take 705.1 kB which makes up the majority of the site volume.
Potential reduce by 41.6 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 6.0 kB, which is 12% 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 41.6 kB or 82% of the original size.
Potential reduce by 105.3 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, ETU needs image optimization as it can save up to 105.3 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 208.5 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 208.5 kB or 69% of the original size.
Potential reduce by 47.1 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. Etu.de needs all CSS files to be minified and compressed as it can save up to 47.1 kB or 84% of the original size.
Number of requests can be reduced by 26 (48%)
54
28
The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ETU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
etu.de
363 ms
www.hottgenroth.de
844 ms
stylesheet_0891f19cc9.css
94 ms
swfobject.js
187 ms
javascript_93077bb238.js
279 ms
style.css
371 ms
jquery.min.js
560 ms
jquery.scrollTo-min.js
654 ms
oec.js
664 ms
global.js
665 ms
hsstyle.css
744 ms
startce.css
756 ms
slightbox.css
757 ms
prototype.1.7.0.yui.js
932 ms
scriptaculous.js
847 ms
lightbox.2.0.5.yui.js
848 ms
cb_indexedsearch_autocomplete.js
950 ms
cb_indexedsearch_autocomplete.css
950 ms
piwik.js
1118 ms
effects.js
187 ms
builder.js
94 ms
bg.gif
93 ms
mainbg.gif
94 ms
hslogo.gif
94 ms
button01.gif
184 ms
button05.gif
184 ms
button06.gif
185 ms
hs_flash_alternative.jpg
548 ms
breadcrumbbghs.gif
277 ms
newsbg.gif
277 ms
Flagge-EN.png
369 ms
haus_bg.png
1007 ms
HottCAD.png
460 ms
button_apps.png
496 ms
button_demos.png
587 ms
Teaser-ETU-Planer_13.png
709 ms
Teaser_-_Kaufmann_App_04.jpg
642 ms
Teaser-Energie-App.jpg
772 ms
Teaser_-_Gebaeudesimulation.jpg
727 ms
Seite_Teaser-Kaufmann.png
768 ms
Teaser_-_EB_18599.jpg
823 ms
Teaser_-_Leistungsverzeichnis.jpg
867 ms
Teaser_U-THERM_04.jpg
908 ms
Teaser_SchornsteinfegerWelt.png
859 ms
Front_Teaser_Angebot.png
864 ms
Teaser_Light_Building.jpg
1005 ms
Front_Teaser_Gesamtkatalog.png
951 ms
Front_Teaser-HS-Akademie.png
957 ms
Front_Teaser_Newsletter.png
959 ms
Front_Teaser_BIM.png
999 ms
Front_Teaser_Termin.png
1042 ms
Front_Teaser_Mediathek.png
1050 ms
teaserrechts.gif
1051 ms
teaserrechtsh1.png
1089 ms
t.js
625 ms
cnt.php
415 ms
etu.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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
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
etu.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
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
etu.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 Etu.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 Etu.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.
etu.de
Open Graph description is not detected on the main page of ETU. 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: