577 ms in total
287 ms
290 ms
0 ms
Click here to check amazing Rockopnh content for Netherlands. Otherwise, check out these important facts you probably never knew about rockopnh.nl
Vonk de beroepsopleider van Noord-Holland. We bieden verschillende soorten onderwijs aan: vmbo, mbo, vavo, educatie, cursussen en bedrijfsopleidingen.
Visit rockopnh.nlWe analyzed Rockopnh.nl page load time and found that the first response time was 287 ms and then it took 290 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
rockopnh.nl performance score
name
value
score
weighting
Value4.9 s
10/100
10%
Value24.1 s
0/100
25%
Value18.4 s
0/100
10%
Value16,820 ms
0/100
30%
Value0.061
97/100
15%
Value29.7 s
0/100
10%
287 ms
Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Rockopnh.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (287 ms) belongs to the original domain Rockopnh.nl.
Page size can be reduced by 3.8 kB (80%)
4.7 kB
939 B
In fact, the total size of Rockopnh.nl main page is 4.7 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 4.7 kB which makes up the majority of the site volume.
Potential reduce by 3.8 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 3.8 kB or 80% of the original size.
We found no issues to fix!
0
0
Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.
rockopnh.nl
287 ms
rockopnh.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
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
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
Links do not have a discernible name
rockopnh.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
rockopnh.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
NL
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rockopnh.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 Rockopnh.nl main page’s claimed encoding is . 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.
rockopnh.nl
Open Graph description is not detected on the main page of Rockopnh. 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: