4.3 sec in total
490 ms
3.5 sec
343 ms
Welcome to cdperserij.nl homepage info - get ready to check Cdperserij best content for Netherlands right away, or after learning these important things about cdperserij.nl
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Visit cdperserij.nlWe analyzed Cdperserij.nl page load time and found that the first response time was 490 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
cdperserij.nl performance score
name
value
score
weighting
Value3.5 s
34/100
10%
Value9.8 s
0/100
25%
Value8.4 s
19/100
10%
Value550 ms
53/100
30%
Value0.001
100/100
15%
Value9.0 s
34/100
10%
490 ms
267 ms
703 ms
298 ms
197 ms
Our browser made a total of 35 requests to load all elements on the main page. We found that 66% of them (23 requests) were addressed to the original Cdperserij.nl, 14% (5 requests) were made to M15.mailplus.nl and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Cdperserij.nl.
Page size can be reduced by 204.2 kB (28%)
739.1 kB
534.9 kB
In fact, the total size of Cdperserij.nl main page is 739.1 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. 20% of websites need less resources to load. Images take 517.6 kB which makes up the majority of the site volume.
Potential reduce by 11.6 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 11.6 kB or 74% of the original size.
Potential reduce by 64.7 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, Cdperserij needs image optimization as it can save up to 64.7 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 111.9 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 111.9 kB or 60% of the original size.
Potential reduce by 15.9 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. Cdperserij.nl needs all CSS files to be minified and compressed as it can save up to 15.9 kB or 82% of the original size.
Number of requests can be reduced by 9 (29%)
31
22
The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cdperserij. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
www.cdperserij.nl
490 ms
styles.css
267 ms
mootools-core.js
703 ms
zFader.js
298 ms
cdperserij.js
197 ms
swfobject.js
275 ms
functions.js
245 ms
calendar.js
328 ms
calendar-nl.js
325 ms
calendar-setup.js
326 ms
theme.css
323 ms
calendar-win2k-cold-1.css
325 ms
conversion.js
17 ms
ga.js
20 ms
bg.shadow.jpg
112 ms
cdperserij.png
111 ms
419.png
329 ms
515.png
315 ms
517.png
248 ms
518.png
236 ms
426.png
2077 ms
550.png
824 ms
551.png
1029 ms
552.png
339 ms
554.png
565 ms
555.png
590 ms
556.png
427 ms
558.png
1088 ms
559.png
815 ms
__utm.gif
22 ms
bgFooter.gif
636 ms
45 ms
collect
66 ms
37 ms
ga-audiences
18 ms
cdperserij.nl accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
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
cdperserij.nl 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
Page has valid source maps
cdperserij.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
NL
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cdperserij.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch 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 Cdperserij.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.
cdperserij.nl
Open Graph description is not detected on the main page of Cdperserij. 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: