5.2 sec in total
876 ms
4 sec
303 ms
Click here to check amazing Prima Online content. Otherwise, check out these important facts you probably never knew about prima-online.nl
PrimaOnderwijs is hét platform voor iedereen werkzaam in het basisonderwijs en voorgezet onderwijs met onderwijsnieuws, gratis lesmateriaal en onderwijsblogs
Visit prima-online.nlWe analyzed Prima-online.nl page load time and found that the first response time was 876 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
prima-online.nl performance score
name
value
score
weighting
Value3.8 s
27/100
10%
Value7.0 s
6/100
25%
Value12.9 s
2/100
10%
Value16,030 ms
0/100
30%
Value0.238
52/100
15%
Value26.4 s
0/100
10%
876 ms
273 ms
273 ms
273 ms
274 ms
Our browser made a total of 90 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Prima-online.nl, 79% (71 requests) were made to Primaonderwijs.nl and 7% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Static.addtoany.com.
Page size can be reduced by 812.2 kB (58%)
1.4 MB
595.4 kB
In fact, the total size of Prima-online.nl main page is 1.4 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. 50% of websites need less resources to load. Javascripts take 885.5 kB which makes up the majority of the site volume.
Potential reduce by 76.5 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 10.9 kB, which is 12% 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 76.5 kB or 83% of the original size.
Potential reduce by 69.7 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. Obviously, Prima Online needs image optimization as it can save up to 69.7 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 647.8 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 647.8 kB or 73% of the original size.
Potential reduce by 18.2 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. Prima-online.nl needs all CSS files to be minified and compressed as it can save up to 18.2 kB or 77% of the original size.
Number of requests can be reduced by 54 (61%)
88
34
The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prima Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
prima-online.nl
876 ms
reset.css
273 ms
style.css
273 ms
sifr.css
273 ms
colors.css
274 ms
campaignbox.css
274 ms
jquery-1.3.2.js
630 ms
main.js
448 ms
sifr.js
540 ms
sifr-config.js
450 ms
homeslider.css
455 ms
jquery.scrollTo-min.js
457 ms
jquery.serialScroll-min.js
625 ms
homeslider.js
642 ms
prototype.js
989 ms
scriptaculous.js
642 ms
campaignbox.js
718 ms
form.css
802 ms
polls-css.css
805 ms
addtoany.min.css
802 ms
form.js
806 ms
jquery.js
1157 ms
jquery-migrate.min.js
973 ms
polls-js.js
749 ms
wp-embed.min.js
752 ms
builder.js
179 ms
effects.js
271 ms
dragdrop.js
268 ms
controls.js
280 ms
slider.js
181 ms
sound.js
339 ms
gpt.js
49 ms
wp-emoji-release.min.js
180 ms
bg.gif
322 ms
algemeen.jpg
327 ms
header_.png
326 ms
nav1.png
323 ms
bg_subnav_bottom.png
322 ms
nav2.png
339 ms
nav3.png
372 ms
icon_3.gif
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icon_4.gif
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spacer.gif
467 ms
went-succesverhalen.png
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rssvo.png
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btn_meer_berichten_vo.gif
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rsspo.png
728 ms
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btn_meer_berichten_po.gif
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rssko.png
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btn_meer_berichten_ko.gif
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dezekeerin-februari.png
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share_save_171_16.png
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analytics.js
9 ms
bg_home.gif
1232 ms
zoek.gif
1260 ms
bg_content.gif
1262 ms
pubads_impl_82.js
24 ms
collect
41 ms
page.js
1940 ms
ads
226 ms
container.html
24 ms
B9396298.128332317;sz=300x250;ord=[timestamp];dc_lat=;dc_rdid=;tag_for_child_directed_treatment=
51 ms
3118392559539792306
151 ms
bg_post_vo.gif
957 ms
bg_post_po.gif
1033 ms
bg_post_ko.gif
1095 ms
nieuwsbrief.png
1124 ms
zzzbg_footer.gif
1654 ms
osd.js
14 ms
300x250_Schoolreizen.gif
109 ms
lidar.js
15 ms
sbhK2lTE.js
6 ms
cTrvNaRi.html
14 ms
Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js
28 ms
activeview
35 ms
activeview
37 ms
activeview
35 ms
prima-online.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
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
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
No form fields have multiple labels
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
prima-online.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
Page has valid source maps
prima-online.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
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
NL
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prima-online.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that Prima-online.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.
prima-online.nl
Open Graph data is detected on the main page of Prima Online. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: