5.5 sec in total
945 ms
4.2 sec
312 ms
Click here to check amazing Dirk Bertels content. Otherwise, check out these important facts you probably never knew about dirkbertels.net
Dirk Bertels: Music, computing, maths
Visit dirkbertels.netWe analyzed Dirkbertels.net page load time and found that the first response time was 945 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
dirkbertels.net performance score
name
value
score
weighting
Value1.2 s
99/100
10%
Value1.2 s
100/100
25%
Value3.2 s
91/100
10%
Value60 ms
100/100
30%
Value0
100/100
15%
Value1.5 s
100/100
10%
945 ms
978 ms
223 ms
446 ms
666 ms
Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Dirkbertels.net and no external sources were called. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Dirkbertels.net.
Page size can be reduced by 120.4 kB (67%)
179.2 kB
58.7 kB
In fact, the total size of Dirkbertels.net main page is 179.2 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. Only 10% of websites need less resources to load. HTML takes 129.3 kB which makes up the majority of the site volume.
Potential reduce by 115.8 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 115.8 kB or 90% of the original size.
Potential reduce by 94 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. Dirk Bertels images are well optimized though.
Potential reduce by 3.2 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 3.2 kB or 36% of the original size.
Potential reduce by 1.3 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. Dirkbertels.net needs all CSS files to be minified and compressed as it can save up to 1.3 kB or 37% of the original size.
Number of requests can be reduced by 8 (47%)
17
9
The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dirk Bertels. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
dirkbertels.net
945 ms
dirkbertels.net
978 ms
xtree.js
223 ms
style.css
446 ms
xtree.css
666 ms
tree.js
686 ms
me.jpg
473 ms
bg.png
223 ms
top_01.jpg
444 ms
somerights.jpg
223 ms
home.gif
1355 ms
Tplus.png
1354 ms
foldericon.png
1354 ms
I.png
1355 ms
T.png
1357 ms
file.png
1358 ms
L.png
1571 ms
Lplus.png
1574 ms
blank.png
1574 ms
dirkbertels.net 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
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
dirkbertels.net 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
dirkbertels.net SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
N/A
ISO-8859-15
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dirkbertels.net can be misinterpreted by Google and other search engines. Our service has detected that English 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 Dirkbertels.net main page’s claimed encoding is iso-8859-15. 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.
dirkbertels.net
Open Graph description is not detected on the main page of Dirk Bertels. 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: