1.5 sec in total
315 ms
1.1 sec
141 ms
Welcome to oefenen.nl homepage info - get ready to check Oefenen best content for Netherlands right away, or after learning these important things about oefenen.nl
Oefen met lezen, schrijven, rekenen en internetten. Leer tegelijkertijd over onderwerpen als werk, opvoeding, gezondheid en omgaan met geld. Populaire leerprogramma’s zijn Lees en Schrijf!, Taalklas.n...
Visit oefenen.nlWe analyzed Oefenen.nl page load time and found that the first response time was 315 ms and then it took 1.2 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.
oefenen.nl performance score
name
value
score
weighting
Value5.2 s
8/100
10%
Value6.2 s
11/100
25%
Value13.0 s
2/100
10%
Value8,780 ms
0/100
30%
Value0.009
100/100
15%
Value24.9 s
0/100
10%
315 ms
95 ms
174 ms
265 ms
179 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 80% of them (40 requests) were addressed to the original Oefenen.nl, 16% (8 requests) were made to Google-analytics.com and 4% (2 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (353 ms) belongs to the original domain Oefenen.nl.
Page size can be reduced by 332.4 kB (59%)
567.1 kB
234.7 kB
In fact, the total size of Oefenen.nl main page is 567.1 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. 40% of websites need less resources to load. Javascripts take 387.3 kB which makes up the majority of the site volume.
Potential reduce by 40.5 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. 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 40.5 kB or 67% of the original size.
Potential reduce by 11.3 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. Obviously, Oefenen needs image optimization as it can save up to 11.3 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 238.2 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 238.2 kB or 61% of the original size.
Potential reduce by 42.5 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. Oefenen.nl needs all CSS files to be minified and compressed as it can save up to 42.5 kB or 79% of the original size.
Number of requests can be reduced by 25 (54%)
46
21
The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oefenen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.
oefenen.nl
315 ms
style.css
95 ms
rateit.css
174 ms
jquery-1.6.3.min.js
265 ms
jquery.cookie.js
179 ms
modernizr-1.6.min.js
180 ms
flashvideo.js
177 ms
login.js
181 ms
dialog.js
259 ms
jquery.rateit.js
259 ms
sorter.js
259 ms
portal.js
260 ms
jomi_html5.js
289 ms
cookieControl-5.1.min.js
346 ms
main-bottom_repeater-transparent.png
170 ms
analytics.js
23 ms
main-top_repeater.png
126 ms
logo.png
125 ms
arrow_right.png
123 ms
nl.png
125 ms
LogoHolderOefenen.png
155 ms
coach_bttn-close.gif
157 ms
coach_ballon01-on.gif
175 ms
coach_head_r.gif
176 ms
coach_ballon02-on.gif
176 ms
coach_head_l.gif
174 ms
coach_tv-on.gif
223 ms
coach_ballon03-on.gif
227 ms
etvprogramma_de_thuisdokter.jpg
261 ms
animatie_oefenen.gif
262 ms
overETV.jpg
262 ms
POPUP_camtasia.png
264 ms
etv-logo.png
310 ms
werkboekbestellen.png
313 ms
kader.png
345 ms
collect
12 ms
collect
109 ms
main-btn_transparant.png
288 ms
footer-transparent.png
282 ms
icon_facebook.png
283 ms
icon_twitter.png
328 ms
ga.js
51 ms
ga.js
54 ms
ga.js
60 ms
ga.js
52 ms
videooverlay.png
279 ms
delete.gif
353 ms
__utm.gif
18 ms
__utm.gif
19 ms
collect
11 ms
oefenen.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
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
oefenen.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
oefenen.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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oefenen.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 Oefenen.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.
oefenen.nl
Open Graph data is detected on the main page of Oefenen. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: