983 ms in total
273 ms
581 ms
129 ms
Click here to check amazing Willemer content for Germany. Otherwise, check out these important facts you probably never knew about willemer.de
Arnold Willemer
Visit willemer.deWe analyzed Willemer.de page load time and found that the first response time was 273 ms and then it took 710 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.
willemer.de performance score
name
value
score
weighting
Value0.9 s
100/100
10%
Value1.1 s
100/100
25%
Value1.2 s
100/100
10%
Value0 ms
100/100
30%
Value0.07
96/100
15%
Value0.9 s
100/100
10%
273 ms
111 ms
196 ms
12 ms
313 ms
Our browser made a total of 13 requests to load all elements on the main page. We found that 54% of them (7 requests) were addressed to the original Willemer.de, 23% (3 requests) were made to Bookboon.com and 15% (2 requests) were made to Wiley-vch.de. The less responsive or slowest element that took the longest time to load (313 ms) relates to the external source Wiley-vch.de.
Page size can be reduced by 25.4 kB (10%)
243.2 kB
217.8 kB
In fact, the total size of Willemer.de main page is 243.2 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. 15% of websites need less resources to load. Images take 236.2 kB which makes up the majority of the site volume.
Potential reduce by 3.0 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 3.0 kB or 68% of the original size.
Potential reduce by 20.5 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. Willemer images are well optimized though.
Potential reduce by 2.0 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. Willemer.de needs all CSS files to be minified and compressed as it can save up to 2.0 kB or 74% 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 Willemer. According to our analytics all requests are already optimized.
willemer.de
273 ms
menu.css
111 ms
sidemenu.css
196 ms
51iAHW7FqdL._SY445_.jpg
12 ms
352776044X.jpg
313 ms
start-mit-linux-mint-mate-17.jpg
31 ms
aw2014.jpg
289 ms
pythonbuch.jpeg
200 ms
c4fcover.gif
204 ms
unixhandbuch.gif
208 ms
start-mit-linux-linux-mint-cinnamon-17.jpg
27 ms
start-mit-linux-ubuntu-14-04-lts.jpg
27 ms
3527760393.jpg
269 ms
willemer.de accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
Links do not have a discernible name
willemer.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
willemer.de SEO score
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
DE
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Willemer.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 Willemer.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.
willemer.de
Open Graph description is not detected on the main page of Willemer. 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: