3.2 sec in total
283 ms
2.7 sec
206 ms
Welcome to marianum.nl homepage info - get ready to check Marianum best content for Netherlands right away, or after learning these important things about marianum.nl
Scholengemeenschap
Visit marianum.nlWe analyzed Marianum.nl page load time and found that the first response time was 283 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
marianum.nl performance score
name
value
score
weighting
Value1.8 s
90/100
10%
Value7.7 s
3/100
25%
Value6.3 s
42/100
10%
Value110 ms
98/100
30%
Value0.012
100/100
15%
Value6.0 s
65/100
10%
283 ms
376 ms
256 ms
172 ms
172 ms
Our browser made a total of 65 requests to load all elements on the main page. We found that 74% of them (48 requests) were addressed to the original Marianum.nl, 14% (9 requests) were made to Static.xx.fbcdn.net and 5% (3 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Marianum.nl.
Page size can be reduced by 212.8 kB (21%)
1.0 MB
804.4 kB
In fact, the total size of Marianum.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. 40% of websites need less resources to load. Images take 734.9 kB which makes up the majority of the site volume.
Potential reduce by 28.9 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. This page needs HTML code to be minified as it can gain 10.6 kB, which is 30% 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 28.9 kB or 82% of the original size.
Potential reduce by 18.3 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. Marianum images are well optimized though.
Potential reduce by 133.0 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 133.0 kB or 64% of the original size.
Potential reduce by 32.6 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. Marianum.nl needs all CSS files to be minified and compressed as it can save up to 32.6 kB or 85% of the original size.
Number of requests can be reduced by 32 (51%)
63
31
The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Marianum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
marianum.nl
283 ms
www.marianum.nl
376 ms
style.css
256 ms
size1.css
172 ms
fonts.css
172 ms
validationEngine.jquery.css
173 ms
jflow.style.css
174 ms
jquery.min.js
31 ms
jquery.fancybox.js
335 ms
jquery.fancybox.css
341 ms
jquery.validationEngine-nl.js
342 ms
jquery.validationEngine.js
509 ms
jflow.plus.min.js
342 ms
jquery.dotdotdot.min.js
347 ms
analytics.js
29 ms
bg-body.png
142 ms
trans-white.png
181 ms
logo-marianum.png
268 ms
bg-form.png
183 ms
btn-search.png
182 ms
font-size-1.png
183 ms
font-size-2.png
267 ms
font-size-3.png
433 ms
but_fotovideo.png
433 ms
btn-inlog.png
433 ms
bg-submenu.png
433 ms
6.jpg
688 ms
5.jpg
603 ms
8.jpg
688 ms
1.jpg
690 ms
9.jpg
777 ms
2.jpg
784 ms
10.jpg
979 ms
7.jpg
1110 ms
banner_underconstruction.png
942 ms
noor.jpg
1114 ms
bg-slidecontent.png
942 ms
bullet.png
948 ms
arrows.png
1105 ms
maxprolight.svg
1195 ms
collect
91 ms
bg-actueel.png
1081 ms
arrows-green-white.png
1104 ms
bg-sliderbot.png
1234 ms
arrows-blue-green.png
1237 ms
bg-agenda-top.png
1239 ms
arrows-blue-small.png
1250 ms
bg-agenda-middle.png
1274 ms
agenda_beide.png
1330 ms
bg-agenda-bottom.png
1403 ms
widgets.js
90 ms
like.php
182 ms
maxprosemibold.svg
1403 ms
button.0308b81ff1714e446f674b5b9793f2cd.js
2 ms
tweet_button.b9740740e0bcf9b0657c5b11bd4388da.nl.html
18 ms
TD3k6ckEuVD.css
43 ms
Ad-mJyRG8CK.css
53 ms
AdP_CKHZFBh.css
49 ms
q68gy-v_YMF.js
46 ms
DFmZn3_ZO2h.js
45 ms
mfqI3d6rUg1.js
79 ms
_Qp3v7kqEMi.js
79 ms
jot
149 ms
Bw8qRoQ9D-v.js
11 ms
4ylGxU24Rah.js
15 ms
marianum.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.
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
ARIA IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
marianum.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
Page has valid source maps
marianum.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Tap targets are not sized appropriately
NL
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Marianum.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 Marianum.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.
marianum.nl
Open Graph description is not detected on the main page of Marianum. 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: