5.6 sec in total
299 ms
5 sec
317 ms
Visit occupationaldiseases.nl now to see the best up-to-date Occupationaldiseases content and also check out these interesting facts you probably never knew about occupationaldiseases.nl
The Netherlands Center for Occupational Diseases (NCvB) registers and reports occupational diseases via the national notification and registration system and a number of specific surveillance projects...
Visit occupationaldiseases.nlWe analyzed Occupationaldiseases.nl page load time and found that the first response time was 299 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
occupationaldiseases.nl performance score
name
value
score
weighting
Value4.6 s
14/100
10%
Value6.5 s
9/100
25%
Value5.8 s
49/100
10%
Value640 ms
47/100
30%
Value0.048
99/100
15%
Value6.5 s
59/100
10%
299 ms
1596 ms
169 ms
170 ms
171 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 73% of them (38 requests) were addressed to the original Occupationaldiseases.nl, 21% (11 requests) were made to Beroepsziekten.nl and 4% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Beroepsziekten.nl.
Page size can be reduced by 855.4 kB (40%)
2.1 MB
1.3 MB
In fact, the total size of Occupationaldiseases.nl main page is 2.1 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. 35% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 48.2 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 48.2 kB or 70% of the original size.
Potential reduce by 566.1 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, Occupationaldiseases needs image optimization as it can save up to 566.1 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 174.3 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 174.3 kB or 75% of the original size.
Potential reduce by 66.9 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. Occupationaldiseases.nl needs all CSS files to be minified and compressed as it can save up to 66.9 kB or 82% of the original size.
Number of requests can be reduced by 29 (60%)
48
19
The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Occupationaldiseases. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.
occupationaldiseases.nl
299 ms
www.occupationaldiseases.nl
1596 ms
system.base.css
169 ms
system.menus.css
170 ms
system.messages.css
171 ms
system.theme.css
171 ms
views_slideshow.css
176 ms
book.css
255 ms
comment.css
253 ms
date.css
256 ms
datepicker.1.7.css
254 ms
field.css
264 ms
node.css
263 ms
search.css
338 ms
user.css
338 ms
views.css
340 ms
ckeditor.css
339 ms
ctools.css
353 ms
views_slideshow_cycle.css
351 ms
skeleton.css
423 ms
style.css
587 ms
layout.css
422 ms
colors.css
424 ms
jquery.js
699 ms
jquery.once.js
442 ms
drupal.js
595 ms
views_slideshow.js
593 ms
admin_devel.js
509 ms
cookieControl-5.1.min.js
618 ms
jquery.mobilemenu.js
593 ms
jquery.cycle.all.min.js
751 ms
views_slideshow_cycle.js
755 ms
css
72 ms
nl-flag.png
448 ms
bic-2014-screen.png
1176 ms
bnr-ncvb-eng.png
441 ms
read-more.png
448 ms
arbozorg.jpg
1381 ms
schoonmaakster.jpg
1416 ms
zwemjuf.jpg
2468 ms
logo-whe.jpg
605 ms
ncvb-kc-2013.werknemer.gif
526 ms
bic-2012-scshot.jpg
886 ms
bic-2011-scshot.jpg
695 ms
pijltje.gif
103 ms
amc.jpg
87 ms
inputzoeken.png
102 ms
zoeken.png
95 ms
arrow_bullet.png
101 ms
keyfigures-ncvb-2015.jpg
101 ms
0XxGQsSc1g4rdRdjJKZrNC3USBnSvpkopQaUR-2r7iU.ttf
36 ms
FUDHvzEKSJww3kCxuiAo2A.ttf
44 ms
occupationaldiseases.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
Links do not have a discernible name
occupationaldiseases.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
occupationaldiseases.nl SEO score
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Occupationaldiseases.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 Occupationaldiseases.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.
occupationaldiseases.nl
Open Graph description is not detected on the main page of Occupationaldiseases. 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: