2.6 sec in total
628 ms
1.8 sec
187 ms
Welcome to werkenbij.leidenuniv.nl homepage info - get ready to check Werken Bij Leiden Univ best content for Netherlands right away, or after learning these important things about werkenbij.leidenuniv.nl
Werken bij een topuniversiteit, met uitstekende carrièremogelijkheden? Ontdek de mogelijkheden bij de Universiteit Leiden.
Visit werkenbij.leidenuniv.nlWe analyzed Werkenbij.leidenuniv.nl page load time and found that the first response time was 628 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
werkenbij.leidenuniv.nl performance score
name
value
score
weighting
Value2.9 s
54/100
10%
Value11.1 s
0/100
25%
Value4.6 s
71/100
10%
Value90 ms
98/100
30%
Value0.801
5/100
15%
Value17.2 s
4/100
10%
628 ms
392 ms
491 ms
498 ms
177 ms
Our browser made a total of 22 requests to load all elements on the main page. We found that 18% of them (4 requests) were addressed to the original Werkenbij.leidenuniv.nl, 64% (14 requests) were made to Live.leidenuniv.nl and 14% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (628 ms) belongs to the original domain Werkenbij.leidenuniv.nl.
Page size can be reduced by 28.2 kB (20%)
140.3 kB
112.1 kB
In fact, the total size of Werkenbij.leidenuniv.nl main page is 140.3 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. 15% of websites need less resources to load. Images take 87.3 kB which makes up the majority of the site volume.
Potential reduce by 4.0 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 654 B, which is 11% 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 4.0 kB or 67% of the original size.
Potential reduce by 324 B
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. Werken Bij Leiden Univ images are well optimized though.
Potential reduce by 34 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 23.9 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. Werkenbij.leidenuniv.nl needs all CSS files to be minified and compressed as it can save up to 23.9 kB or 80% of the original size.
Number of requests can be reduced by 10 (59%)
17
7
The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Werken Bij Leiden Univ. 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.
werkenbij.leidenuniv.nl
628 ms
nbl.min.js
392 ms
main.css
491 ms
jquery-1.8.3.min.js
498 ms
rendition.js
177 ms
ga.js
31 ms
ul_logo.png
119 ms
bnbig_default.jpg
550 ms
ul_logo_print.png
186 ms
file_rss.png
194 ms
crumb_chevron.png
101 ms
bkg_main.png
157 ms
bkg_btn.png
177 ms
bkg_middle.png
184 ms
arrow_right.png
200 ms
arrow_midsec.png
201 ms
arrow_left.png
243 ms
crumb_overlay.png
263 ms
plugins.js
101 ms
print.css
105 ms
__utm.gif
16 ms
__utm.gif
14 ms
werkenbij.leidenuniv.nl accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
werkenbij.leidenuniv.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
General
Impact
Issue
Detected JavaScript libraries
werkenbij.leidenuniv.nl SEO score
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
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Werkenbij.leidenuniv.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that Werkenbij.leidenuniv.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.
werkenbij.leidenuniv.nl
Open Graph description is not detected on the main page of Werken Bij Leiden Univ. 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: