7.7 sec in total
1.6 sec
5.9 sec
170 ms
Welcome to downsyndroom.nl homepage info - get ready to check Downsyndroom best content right away, or after learning these important things about downsyndroom.nl
De Stichting Downsyndroom (SDS) werd in maart 1988 opgericht op initiatief van een aantal ouders met jonge kinderen met die conditie. Zij wilden daarmee de leemte in de informatievoorziening over het ...
Visit downsyndroom.nlWe analyzed Downsyndroom.nl page load time and found that the first response time was 1.6 sec and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
downsyndroom.nl performance score
name
value
score
weighting
Value10.8 s
0/100
10%
Value11.9 s
0/100
25%
Value18.1 s
0/100
10%
Value680 ms
44/100
30%
Value0.012
100/100
15%
Value18.8 s
3/100
10%
1645 ms
92 ms
167 ms
45 ms
49 ms
Our browser made a total of 117 requests to load all elements on the main page. We found that 85% of them (100 requests) were addressed to the original Downsyndroom.nl, 3% (4 requests) were made to F.vimeocdn.com and 3% (3 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Downsyndroom.nl.
Page size can be reduced by 885.3 kB (53%)
1.7 MB
773.1 kB
In fact, the total size of Downsyndroom.nl main page is 1.7 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. 60% of websites need less resources to load. Javascripts take 884.8 kB which makes up the majority of the site volume.
Potential reduce by 36.8 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 36.8 kB or 78% of the original size.
Potential reduce by 26.8 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. Downsyndroom images are well optimized though.
Potential reduce by 563.7 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 563.7 kB or 64% of the original size.
Potential reduce by 258.0 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. Downsyndroom.nl needs all CSS files to be minified and compressed as it can save up to 258.0 kB or 84% of the original size.
Number of requests can be reduced by 85 (73%)
116
31
The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Downsyndroom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 48 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.
www.downsyndroom.nl
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downsyndroom.nl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
downsyndroom.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
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
downsyndroom.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
NL
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Downsyndroom.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 Downsyndroom.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.
downsyndroom.nl
Open Graph description is not detected on the main page of Downsyndroom. 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: