3.3 sec in total
719 ms
2.3 sec
284 ms
Click here to check amazing Zencentrum content. Otherwise, check out these important facts you probably never knew about zencentrum.nl
Visit zencentrum.nlWe analyzed Zencentrum.nl page load time and found that the first response time was 719 ms and then it took 2.5 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.
zencentrum.nl performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value7.6 s
3/100
25%
Value8.2 s
20/100
10%
Value490 ms
58/100
30%
Value0.028
100/100
15%
Value10.1 s
26/100
10%
719 ms
200 ms
212 ms
200 ms
8 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 68% of them (23 requests) were addressed to the original Zencentrum.nl, 12% (4 requests) were made to Maxcdn.bootstrapcdn.com and 12% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (943 ms) belongs to the original domain Zencentrum.nl.
Page size can be reduced by 416.3 kB (39%)
1.1 MB
647.1 kB
In fact, the total size of Zencentrum.nl 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. 40% of websites need less resources to load. Images take 539.9 kB which makes up the majority of the site volume.
Potential reduce by 33.3 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 6.4 kB, which is 15% 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 33.3 kB or 80% of the original size.
Potential reduce by 23.5 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. Zencentrum images are well optimized though.
Potential reduce by 165.9 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 165.9 kB or 68% of the original size.
Potential reduce by 193.6 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. Zencentrum.nl needs all CSS files to be minified and compressed as it can save up to 193.6 kB or 81% of the original size.
Number of requests can be reduced by 21 (66%)
32
11
The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zencentrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.
zencentrum.nl
719 ms
css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css
200 ms
css_qz8Zo67ulYD-UKEzvEGs5s6TXrpknTvuYaGcvJhvG60.css
212 ms
css_XHWSuVJpN_kim6V8r3j4DNjNeH251Nh8MK0njqalvMM.css
200 ms
font-awesome.min.css
8 ms
bootstrap.min.css
12 ms
css_jBUtcGqn28Jx5QmYb-lgFODKCukHSTw42NXOquVVahs.css
201 ms
css_YvExWByfsdcL8ihPT5qMGwmG0SCvgFdDBZ1XBXWju70.css
202 ms
sourcesanspro-font.css
211 ms
lato-font.css
388 ms
sourcecodepro-font.css
391 ms
ptserif-blockquote-font.css
386 ms
js_MpKfe1sTh5JIVGCZ17DsAuT1rqAC38MLLlkjqjQ1X_k.js
486 ms
js_Ilcf2KAIDxkIt1nXokaTIAx9QwMG8Thm5wi4WY-mAG8.js
392 ms
bootstrap.min.js
20 ms
js
54 ms
jquery.meanmenu.min.js
574 ms
js_D3gaWDovdngGvy7Ar8cOr5P3FJZDJ4dJMGHTZV2zNIY.js
577 ms
js_CEr8cv29O4b275TtfrLcBl7IjeQC0BGwZOJdCh5Qvws.js
584 ms
css
24 ms
css
14 ms
css
23 ms
css
22 ms
analytics.js
31 ms
collect
14 ms
CSC_0916-banner.jpg
943 ms
bemmel.jpg
526 ms
965e08948686f07a747b0559912aa77f.jpg
103 ms
20150318_163433.jpg
103 ms
IMG-20150419-WA0005.jpg
195 ms
artikel-lentse-lucht.png
385 ms
arrows-ffffff.png
197 ms
bg_tab.png
201 ms
fontawesome-webfont.woff
8 ms
zencentrum.nl accessibility score
zencentrum.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
zencentrum.nl 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
Tap targets are not sized appropriately
NL
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zencentrum.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that Zencentrum.nl 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.
zencentrum.nl
Open Graph description is not detected on the main page of Zencentrum. 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: