Tools & Wizards About Us
studentenwerk.nl screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    47% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 90% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 90

    SEO

    Google-friendlier than
    69% of websites

studentenwerk.nl

Studenten vacatures - Uitzendbureau - Bijbaan | StudentenWerk.nl

Page Load Speed

5.3 sec in total

First Response

221 ms

Resources Loaded

3.2 sec

Page Rendered

1.9 sec

studentenwerk.nl screenshot

About Website

Click here to check amazing Studenten Werk content for Netherlands. Otherwise, check out these important facts you probably never knew about studentenwerk.nl

Zoek jij een bijbaan, stage of startersfunctie? StudentenWerk Uitzendbureau biedt een compleet aanbod van werk voor studenten. Schrijf je nu gratis in!

Visit studentenwerk.nl

Key Findings

We analyzed Studentenwerk.nl page load time and found that the first response time was 221 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

studentenwerk.nl performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

20/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

21/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value4,690 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

studentenwerk.nl

221 ms

www.studentenwerk.nl

577 ms

j.php

52 ms

css

205 ms

css

218 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 32% of them (19 requests) were addressed to the original Studentenwerk.nl, 20% (12 requests) were made to Dev.visualwebsiteoptimizer.com and 19% (11 requests) were made to D36bmc1enj16yj.cloudfront.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Studentenwerk.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 977.1 kB (58%)

Content Size

1.7 MB

After Optimization

705.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Studentenwerk.nl main page is 1.7 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. 65% of websites need less resources to load. Javascripts take 860.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 39.2 kB

  • Original 50.5 kB
  • After minification 42.6 kB
  • After compression 11.3 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 7.9 kB, which is 16% 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 39.2 kB or 78% of the original size.

Image Optimization

-5%

Potential reduce by 20.3 kB

  • Original 403.3 kB
  • After minification 383.0 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. Studenten Werk images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 606.4 kB

  • Original 860.0 kB
  • After minification 859.9 kB
  • After compression 253.6 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 606.4 kB or 71% of the original size.

CSS Optimization

-84%

Potential reduce by 311.2 kB

  • Original 368.5 kB
  • After minification 366.3 kB
  • After compression 57.3 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. Studentenwerk.nl needs all CSS files to be minified and compressed as it can save up to 311.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (61%)

Requests Now

51

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Studenten Werk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

studentenwerk.nl

studentenwerk.nl

221 ms

www.studentenwerk.nl

www.studentenwerk.nl

577 ms

j.php

j.php

52 ms

css

css

205 ms

css

css

218 ms

application-e3968cc6aa163ed72589d5b2e1f93d11.css

application-e3968cc6aa163ed72589d5b2e1f93d11.css

235 ms

application-90b6155944888f177c98970733d9c984.js

application-90b6155944888f177c98970733d9c984.js

333 ms

v.gif

v.gif

9 ms

va-61418ddc26684d8ad493a188a761e47a.js

va-61418ddc26684d8ad493a188a761e47a.js

27 ms

va_survey-8c16829afcfc08feb8ec75e7558c3d6e.js

va_survey-8c16829afcfc08feb8ec75e7558c3d6e.js

61 ms

yc-logo.png

yc-logo.png

835 ms

stw-6d448e5abfcf58a1dfd48500973d1737.png

stw-6d448e5abfcf58a1dfd48500973d1737.png

171 ms

ns.png

ns.png

961 ms

kpn.png

kpn.png

950 ms

postnl.png

postnl.png

948 ms

ing.png

ing.png

1102 ms

t-mobile.png

t-mobile.png

947 ms

home-webhelp.png

home-webhelp.png

945 ms

home-hellofresh.png

home-hellofresh.png

1044 ms

stw_app2.png

stw_app2.png

1475 ms

get_it_google_play.png

get_it_google_play.png

977 ms

get_it_apple_store.png

get_it_apple_store.png

1043 ms

belgie.gif

belgie.gif

977 ms

duitsland.gif

duitsland.gif

1167 ms

frankrijk.gif

frankrijk.gif

1168 ms

oostenrijk.gif

oostenrijk.gif

1166 ms

spanje.gif

spanje.gif

1167 ms

engeland.gif

engeland.gif

1166 ms

survey-4e8b4d48928d826381d16e3112b7f549.html

survey-4e8b4d48928d826381d16e3112b7f549.html

143 ms

gtm.js

gtm.js

665 ms

header9-a36b42c15a26c60deda247e5fdb4b861.jpg

header9-a36b42c15a26c60deda247e5fdb4b861.jpg

665 ms

job_openings_list_icon-fc2cfece14f26079b3f3fa63d53d4503.png

job_openings_list_icon-fc2cfece14f26079b3f3fa63d53d4503.png

532 ms

social_buttons_bg-fe3d3659eb53cd3162e61fe5d8310b75.png

social_buttons_bg-fe3d3659eb53cd3162e61fe5d8310b75.png

663 ms

facebook-128-e7569620ba87a1266059f709363943e4.png

facebook-128-e7569620ba87a1266059f709363943e4.png

697 ms

linkedin-128-dd3f46cb48e0fd85a8fe83f973c404e0.png

linkedin-128-dd3f46cb48e0fd85a8fe83f973c404e0.png

698 ms

twitter-128-099ac269b6e8aef50aed15196b3aaaa4.png

twitter-128-099ac269b6e8aef50aed15196b3aaaa4.png

692 ms

rss-128-ca91368d9be82765d4d86f818f46d0f2.png

rss-128-ca91368d9be82765d4d86f818f46d0f2.png

673 ms

cache-473204f3b76a44bc52746eee12d71fdb.html

cache-473204f3b76a44bc52746eee12d71fdb.html

161 ms

survey-ca2ab02bc066da7f91462c87ab0c8ab3.js

survey-ca2ab02bc066da7f91462c87ab0c8ab3.js

620 ms

dark-b01830332201b7c152c33e53fe748ecd.css

dark-b01830332201b7c152c33e53fe748ecd.css

485 ms

light-a0b973371401247b0459ae327a0e0bac.css

light-a0b973371401247b0459ae327a0e0bac.css

486 ms

plusone.js

plusone.js

445 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

322 ms

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

440 ms

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

513 ms

glyphicons-halflings-regular-8e547358238e6ac36a56671e3ac327e8.woff

glyphicons-halflings-regular-8e547358238e6ac36a56671e3ac327e8.woff

162 ms

analytics.js

analytics.js

423 ms

fbevents.js

fbevents.js

548 ms

bat.js

bat.js

401 ms

hotjar-151252.js

hotjar-151252.js

586 ms

dark-7437bdcc2a4c717518b0a33295d4649f.css

dark-7437bdcc2a4c717518b0a33295d4649f.css

101 ms

dark-7437bdcc2a4c717518b0a33295d4649f.css

dark-7437bdcc2a4c717518b0a33295d4649f.css

101 ms

vwo@2x-6592a1fd051b3a7b65defc8b59de348f.png

vwo@2x-6592a1fd051b3a7b65defc8b59de348f.png

98 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

81 ms

collect

collect

26 ms

33 ms

collect

collect

137 ms

modules-a580d5381bcda1101baec9a5e6ecf803.js

modules-a580d5381bcda1101baec9a5e6ecf803.js

84 ms

ga-audiences

ga-audiences

41 ms

Accessibility Review

studentenwerk.nl accessibility score

96

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

Low

No form fields have multiple labels

Best Practices

studentenwerk.nl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

studentenwerk.nl SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Studentenwerk.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 Studentenwerk.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.

Social Sharing Optimization

studentenwerk.nl

Open Graph description is not detected on the main page of Studenten Werk. 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: