7.7 sec in total
Click here to check amazing ZSF content for Switzerland. Otherwise, check out these important facts you probably never knew about zsf.ch
zsf, Stiftung Zürcher Schülerferien, Ferienlager, Kurskompass, Zürich Ferienlager, Zürcher Schülerferien, Schülerferien, Ferienhäuser, LagerVisit zsf.ch
We analyzed Zsf.ch page load time and found that the first response time was 484 ms and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
zsf.ch performance score
Our browser made a total of 10 requests to load all elements on the main page. We found that 90% of them (9 requests) were addressed to the original Zsf.ch, 10% (1 request) were made to Statistic.zsf.ch. The less responsive or slowest element that took the longest time to load (945 ms) belongs to the original domain Zsf.ch.
Page size can be reduced by 66.9 kB (12%)
In fact, the total size of Zsf.ch main page is 554.1 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. Only 10% of websites need less resources to load. Images take 488.2 kB which makes up the majority of the site volume.
Potential reduce by 6.0 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 6.0 kB or 66% of the original size.
Potential reduce by 23.6 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. ZSF images are well optimized though.
Potential reduce by 37.3 kB
We found no issues to fix!
zsf.ch accessibility score
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
zsf.ch best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Serves images with low resolution
zsf.ch SEO score
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/).
Document uses legible font sizes
Tap targets are not sized appropriately
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zsf.ch can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Zsf.ch 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 ZSF. 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: