1.9 sec in total
330 ms
1.5 sec
127 ms
Click here to check amazing Opleiding OSK content. Otherwise, check out these important facts you probably never knew about opleidingosk.nl
Erkende opleiding op het gebied van Sportmassage en Sportverzorging door VOS gecertificeerde docenten....
Visit opleidingosk.nlWe analyzed Opleidingosk.nl page load time and found that the first response time was 330 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
opleidingosk.nl performance score
name
value
score
weighting
Value2.1 s
81/100
10%
Value2.3 s
92/100
25%
Value3.0 s
94/100
10%
Value130 ms
96/100
30%
Value0.006
100/100
15%
Value2.3 s
99/100
10%
330 ms
121 ms
584 ms
125 ms
124 ms
Our browser made a total of 21 requests to load all elements on the main page. We found that all of those requests were addressed to Opleidingosk.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (584 ms) belongs to the original domain Opleidingosk.nl.
Page size can be reduced by 12.0 kB (30%)
40.1 kB
28.0 kB
In fact, the total size of Opleidingosk.nl main page is 40.1 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. Only 5% of websites need less resources to load. Images take 26.6 kB which makes up the majority of the site volume.
Potential reduce by 7.9 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. 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 7.9 kB or 76% of the original size.
Potential reduce by 1.6 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. Opleiding OSK images are well optimized though.
Potential reduce by 2.5 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. Opleidingosk.nl needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 80% of the original size.
Number of requests can be reduced by 5 (25%)
20
15
The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opleiding OSK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
opleidingosk.nl
330 ms
s.css
121 ms
ssb.css
584 ms
nam0.gif
125 ms
nm0.gif
124 ms
nam1.gif
224 ms
nm1.gif
220 ms
nam2.gif
225 ms
nm2.gif
224 ms
nam3.gif
235 ms
nm3.gif
231 ms
nam4.gif
324 ms
nm4.gif
334 ms
nam5.gif
332 ms
nm5.gif
334 ms
pcp.gif
335 ms
s2dlogo.jpg
554 ms
psrchok.gif
439 ms
plh.gif
439 ms
plv.gif
440 ms
voslogoblauw_150.jpg
439 ms
opleidingosk.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
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
opleidingosk.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
opleidingosk.nl SEO score
NL
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opleidingosk.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 Opleidingosk.nl main page’s claimed encoding is iso-8859-1. 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.
opleidingosk.nl
Open Graph description is not detected on the main page of Opleiding OSK. 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: