3.2 sec in total
368 ms
2.6 sec
236 ms
Visit nki.nl now to see the best up-to-date NKI content for Netherlands and also check out these interesting facts you probably never knew about nki.nl
The NKI comprises an internationally acclaimed research institute as well as a dedicated cancer clinic | Today’s research for tomorrow’s cure
Visit nki.nlWe analyzed Nki.nl page load time and found that the first response time was 368 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
nki.nl performance score
name
value
score
weighting
Value2.7 s
60/100
10%
Value5.5 s
19/100
25%
Value6.2 s
43/100
10%
Value180 ms
92/100
30%
Value0.371
29/100
15%
Value9.9 s
27/100
10%
368 ms
738 ms
177 ms
179 ms
352 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 97% of them (38 requests) were addressed to the original Nki.nl, 3% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (851 ms) belongs to the original domain Nki.nl.
Page size can be reduced by 706.3 kB (62%)
1.1 MB
436.4 kB
In fact, the total size of Nki.nl main page is 1.1 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. 25% of websites need less resources to load. Javascripts take 635.6 kB which makes up the majority of the site volume.
Potential reduce by 15.2 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 15.2 kB or 75% of the original size.
Potential reduce by 11.5 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. NKI images are well optimized though.
Potential reduce by 508.5 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 508.5 kB or 80% of the original size.
Potential reduce by 171.1 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. Nki.nl needs all CSS files to be minified and compressed as it can save up to 171.1 kB or 85% of the original size.
Number of requests can be reduced by 24 (65%)
37
13
The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NKI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
nki.nl
368 ms
www.nki.nl
738 ms
style-nki.css
177 ms
shadowbox.css
179 ms
dc-responsive.css
352 ms
jquery-1.7.2.min.js
287 ms
jquery.fancybox.js
349 ms
jquery.touchSwipe.js
352 ms
media.js
176 ms
global.js
606 ms
shadowbox.js
442 ms
loader.js
349 ms
dc-responsive.js
384 ms
dcshare.js
437 ms
reset.css
354 ms
base.css
355 ms
content.css
392 ms
elements.css
448 ms
jquery.fancybox.css
444 ms
ga.js
103 ms
banner-gradient.png
108 ms
851 ms
icon-arrow-white-on-red_down.png
105 ms
icon-overview-red.png
106 ms
icon-arrow-white-on-red.png
106 ms
311 ms
350 ms
icon-quote-close-white.png
191 ms
icon-arrow-white.png
190 ms
icon-quote-open-white.png
190 ms
logo-nki.png
272 ms
bg-header-quicklinks-border-blue.jpg
273 ms
logo-footer.jpg
278 ms
icon-social-twitter.png
360 ms
icon-social-facebook.png
361 ms
icon-social-youtube.png
374 ms
icon-social-linkedin.png
404 ms
icon-spyglass-white.png
392 ms
print.css
94 ms
nki.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
nki.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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
nki.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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nki.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Nki.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.
nki.nl
Open Graph description is not detected on the main page of NKI. 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: