1.8 sec in total
437 ms
1.2 sec
206 ms
Visit zmlk.nl now to see the best up-to-date ZMLK content and also check out these interesting facts you probably never knew about zmlk.nl
ZMLK: De St. Mattheusschool is een school voor Speciaal Onderwijs en Voortgezet Speciaal Onderwijs aan Zeer Moeilijk Lerende Kinderen en tevens kernschool voor kinderen met autisme voor de regio Rotte...
Visit zmlk.nlWe analyzed Zmlk.nl page load time and found that the first response time was 437 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
zmlk.nl performance score
name
value
score
weighting
Value2.2 s
77/100
10%
Value2.4 s
92/100
25%
Value3.0 s
94/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value2.2 s
99/100
10%
437 ms
63 ms
758 ms
578 ms
413 ms
Our browser made a total of 19 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Zmlk.nl, 63% (12 requests) were made to Reserved.transip.nl and 11% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (758 ms) relates to the external source Reserved.transip.nl.
Page size can be reduced by 116.2 kB (21%)
565.2 kB
449.0 kB
In fact, the total size of Zmlk.nl main page is 565.2 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 424.0 kB which makes up the majority of the site volume.
Potential reduce by 57.3 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. This page needs HTML code to be minified as it can gain 19.2 kB, which is 29% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 57.3 kB or 87% of the original size.
Potential reduce by 26.9 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. ZMLK images are well optimized though.
Potential reduce by 32.0 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 32.0 kB or 59% of the original size.
Potential reduce by 4 B
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. Zmlk.nl has all CSS files already compressed.
We found no issues to fix!
15
15
The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZMLK. According to our analytics all requests are already optimized.
zmlk.nl
437 ms
css
63 ms
combined-min.css
758 ms
headerphoto_reduced.jpg
578 ms
headerphoto_mobile_reduced.jpg
413 ms
questionbox_mobile_reduced.jpg
669 ms
questionbox_desktop_reduced.jpg
720 ms
bringit_desktop_reduced.jpg
270 ms
bringit_mobile_reduced.jpg
451 ms
trustpilot.jpg
414 ms
thumbup.jpg
498 ms
_sltlds.js
539 ms
reserved-min.js
577 ms
close-button.png
577 ms
analytics.js
7 ms
toadOcfmlt9b38dHJxOBGBPPOa1q11iOmmM9mDHHHX4.ttf
24 ms
ODelI1aHBYDBqgeIAH2zlNzbP97U9sKh0jjxbPbfOKg.ttf
29 ms
collect
23 ms
collect
56 ms
zmlk.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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
zmlk.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
zmlk.nl SEO score
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
N/A
N/A
ASCII
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zmlk.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Zmlk.nl main page’s claimed encoding is ascii. 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.
zmlk.nl
Open Graph description is not detected on the main page of ZMLK. 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: