2.9 sec in total
323 ms
2.4 sec
127 ms
Welcome to koller-webprogramming.ch homepage info - get ready to check Koller Webprogramming best content for Germany right away, or after learning these important things about koller-webprogramming.ch
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Visit koller-webprogramming.chWe analyzed Koller-webprogramming.ch page load time and found that the first response time was 323 ms and then it took 2.6 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.
koller-webprogramming.ch performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value6.9 s
6/100
25%
Value10.5 s
7/100
10%
Value480 ms
60/100
30%
Value0.242
51/100
15%
Value8.6 s
37/100
10%
323 ms
948 ms
106 ms
207 ms
211 ms
Our browser made a total of 23 requests to load all elements on the main page. We found that 70% of them (16 requests) were addressed to the original Koller-webprogramming.ch, 9% (2 requests) were made to Google-analytics.com and 9% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (948 ms) belongs to the original domain Koller-webprogramming.ch.
Page size can be reduced by 77.7 kB (45%)
174.2 kB
96.5 kB
In fact, the total size of Koller-webprogramming.ch main page is 174.2 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. 25% of websites need less resources to load. Images take 68.4 kB which makes up the majority of the site volume.
Potential reduce by 14.6 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 14.6 kB or 72% of the original size.
Potential reduce by 5.9 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. Koller Webprogramming images are well optimized though.
Potential reduce by 37.2 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 37.2 kB or 61% of the original size.
Potential reduce by 20.0 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. Koller-webprogramming.ch needs all CSS files to be minified and compressed as it can save up to 20.0 kB or 82% of the original size.
Number of requests can be reduced by 11 (52%)
21
10
The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koller Webprogramming. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
koller-webprogramming.ch
323 ms
www.koller-webprogramming.ch
948 ms
stylesheet_9a439ed8c6.css
106 ms
nachschlagewerk.css
207 ms
main.css
211 ms
fce.css
669 ms
content.css
943 ms
navigation.css
943 ms
mailform.css
213 ms
rte.css
306 ms
javascript_0b12553063.js
320 ms
jsfunc.validateform.js
321 ms
redirect.js
470 ms
logo_n.jpg
211 ms
php-200_05_7cbbf56945.jpg
110 ms
typo3-200_02_04f52e9395.jpg
110 ms
all.js
14 ms
linksbackground.jpg
202 ms
analytics.js
23 ms
99 ms
collect
20 ms
xd_arbiter.php
29 ms
xd_arbiter.php
34 ms
koller-webprogramming.ch 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
koller-webprogramming.ch 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
koller-webprogramming.ch 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
DE
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koller-webprogramming.ch 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 Koller-webprogramming.ch 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.
koller-webprogramming.ch
Open Graph description is not detected on the main page of Koller Webprogramming. 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: