2.2 sec in total
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Basisschool De Zonnewijzer, een school in het hartje van Leidschendam. Gevestigd in een modern gebouw met een eigen gymnastiekzaal en een veilig afgesloten schoolplein.Visit dezonnewijzer.nl
We analyzed Dezonnewijzer.nl page load time and found that the first response time was 363 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
dezonnewijzer.nl performance score
Our browser made a total of 13 requests to load all elements on the main page. We found that all of those requests were addressed to Dezonnewijzer.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (964 ms) belongs to the original domain Dezonnewijzer.nl.
Page size can be reduced by 52.3 kB (5%)
In fact, the total size of Dezonnewijzer.nl main page is 1.0 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. Only 10% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.
Potential reduce by 13.9 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 13.9 kB or 82% of the original size.
Potential reduce by 30.7 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. De Zonnewijzer images are well optimized though.
Potential reduce by 7.8 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. Dezonnewijzer.nl needs all CSS files to be minified and compressed as it can save up to 7.8 kB or 88% of the original size.
We found no issues to fix!
dezonnewijzer.nl accessibility score
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
dezonnewijzer.nl best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Serves images with low resolution
dezonnewijzer.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Document uses legible font sizes
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dezonnewijzer.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 Dezonnewijzer.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.
Open Graph description is not detected on the main page of De Zonnewijzer. 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: