Tools & Wizards About Us
quadraam.nl screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

quadraam.nl

Quadraam, Ruimte voor talent | De Gelderse Onderwijsgroep

Page Load Speed

4.7 sec in total

First Response

367 ms

Resources Loaded

3.1 sec

Page Rendered

1.2 sec

quadraam.nl screenshot

About Website

Visit quadraam.nl now to see the best up-to-date Quadraam content for United States and also check out these interesting facts you probably never knew about quadraam.nl

Wij bieden onderwijs op 14 middelbare scholen in de regio Arnhem, de Liemers en Overbetuwe. Lees alles over onze speerpunten, innovaties en samenwerkingen met het bedrijfsleven.  

Visit quadraam.nl

Key Findings

We analyzed Quadraam.nl page load time and found that the first response time was 367 ms and then it took 4.3 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

quadraam.nl performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.207

60/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

quadraam.nl

367 ms

home

610 ms

gtm.js

57 ms

css2

35 ms

style.less

514 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 24% of them (17 requests) were addressed to the original Quadraam.nl, 71% (50 requests) were made to Cdn.i-pulse.nl and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (847 ms) relates to the external source Cdn.i-pulse.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 570.0 kB (10%)

Content Size

5.6 MB

After Optimization

5.0 MB

  • HTML
  • Images

In fact, the total size of Quadraam.nl main page is 5.6 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. 60% of websites need less resources to load. Images take 5.5 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 66.1 kB

  • Original 74.3 kB
  • After minification 45.8 kB
  • After compression 8.3 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 28.6 kB, which is 38% 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 66.1 kB or 89% of the original size.

Image Optimization

-9%

Potential reduce by 503.9 kB

  • Original 5.5 MB
  • After minification 5.0 MB

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. Quadraam images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 4 (6%)

Requests Now

66

After Optimization

62

  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Quadraam. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

quadraam.nl

quadraam.nl

367 ms

home

home

610 ms

gtm.js

gtm.js

57 ms

css2

css2

35 ms

style.less

style.less

514 ms

best-practice-liemers-college-website-quadraam-(524-x-400-px).png

best-practice-liemers-college-website-quadraam-(524-x-400-px).png

552 ms

logo.svg

logo.svg

364 ms

home.svg

home.svg

363 ms

overlay.svg

overlay.svg

382 ms

best-practice-isk-arnhem-quadraam-website-(524-x-400-px).png

best-practice-isk-arnhem-quadraam-website-(524-x-400-px).png

540 ms

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(4).png

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(4).png

540 ms

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(3).png

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(3).png

478 ms

ontwerp-zonder-titel---2024-06-06t134922.601.png

ontwerp-zonder-titel---2024-06-06t134922.601.png

820 ms

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(2).png

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(2).png

468 ms

zonder-titel-(524-x-400-px)-(10).png

zonder-titel-(524-x-400-px)-(10).png

820 ms

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(1).png

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px)-(1).png

565 ms

ontwerp-zonder-titel-4.png

ontwerp-zonder-titel-4.png

820 ms

smalloverlay2.svg

smalloverlay2.svg

292 ms

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px).png

kopie-van-quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px).png

571 ms

v.l.n.r.-aldert-boer--patrick-de-groot--erik-spiering--sammy-rutten--bruce-muurmans-en-berrie-jansen-(524-x-400-px)-4.png

v.l.n.r.-aldert-boer--patrick-de-groot--erik-spiering--sammy-rutten--bruce-muurmans-en-berrie-jansen-(524-x-400-px)-4.png

819 ms

quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px).png

quadraam-website-best-practice-beekdal-lyceum-(524-x-400-px).png

817 ms

info-icon-cookies.png

info-icon-cookies.png

296 ms

footer.svg

footer.svg

394 ms

css

css

472 ms

modernizr

modernizr

111 ms

jquery

jquery

526 ms

jqueryval

jqueryval

214 ms

scriptsv3

scriptsv3

623 ms

logo-white.svg

logo-white.svg

134 ms

vr.jpg

vr.jpg

318 ms

beekdal-lyceum-buiten.jpg

beekdal-lyceum-buiten.jpg

183 ms

beekdal-lyceum.png

beekdal-lyceum.png

132 ms

olympus-college-vacature.jpg

olympus-college-vacature.jpg

183 ms

janlighthart-olympuscollege-logo-fc.jpg

janlighthart-olympuscollege-logo-fc.jpg

186 ms

saturnus-20180814-nieuwe-kleuren-09-(large).jpg

saturnus-20180814-nieuwe-kleuren-09-(large).jpg

322 ms

candea.png

candea.png

130 ms

quadraam-candea-college-eltensestraat-lowres-edits-5.jpg

quadraam-candea-college-eltensestraat-lowres-edits-5.jpg

206 ms

img-4506.jpg

img-4506.jpg

316 ms

2018-logo-hw-vmbo-blauw.png

2018-logo-hw-vmbo-blauw.png

322 ms

ontwerp-zonder-titel(1).png

ontwerp-zonder-titel(1).png

653 ms

primair-logo-isk-arnhem-rgb.jpg

primair-logo-isk-arnhem-rgb.jpg

322 ms

liemerscollege-vacature-heerenmaten.jpg

liemerscollege-vacature-heerenmaten.jpg

323 ms

liemers.jpg

liemers.jpg

324 ms

liemers-college.jpg

liemers-college.jpg

458 ms

logo-liemers-college(1).png

logo-liemers-college(1).png

430 ms

logo-liemers-college.png

logo-liemers-college.png

491 ms

liemerscollege-landeweer-buiten.jpg

liemerscollege-landeweer-buiten.jpg

413 ms

quadraam-liemerscollege-zonegge-lowres-edits-2.jpg

quadraam-liemerscollege-zonegge-lowres-edits-2.jpg

487 ms

55096e97-956a-4e70-9c64-ed45861fd933(1).jpg

55096e97-956a-4e70-9c64-ed45861fd933(1).jpg

514 ms

lorentz-lyceum.png

lorentz-lyceum.png

525 ms

lyceum-elst-buiten.jpg

lyceum-elst-buiten.jpg

559 ms

lyceum-elst.png

lyceum-elst.png

582 ms

schoolplein.jpg

schoolplein.jpg

594 ms

logo-mvr.png

logo-mvr.png

610 ms

arnhem---montessori-college-2.jpg

arnhem---montessori-college-2.jpg

627 ms

montessori-logo-primair.jpg

montessori-logo-primair.jpg

823 ms

olympus-college-2.jpg

olympus-college-2.jpg

681 ms

olympuscollege.jpg

olympuscollege.jpg

691 ms

quadraam-produs-praktijkonderwijs-lowres-edits-13.jpg

quadraam-produs-praktijkonderwijs-lowres-edits-13.jpg

715 ms

produs.png

produs.png

724 ms

quadraam-rivers-international-school-lowres-edits-9.jpg

quadraam-rivers-international-school-lowres-edits-9.jpg

760 ms

RLpqK5v5_bqufTYdnhFzDj2dX_IwS3my73zcDaR_3c1o.ttf

RLpqK5v5_bqufTYdnhFzDj2dX_IwS3my73zcDaR_3c1o.ttf

52 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

312 ms

rivers-logo.png

rivers-logo.png

769 ms

vijver.jpg

vijver.jpg

783 ms

logo-sga.png

logo-sga.png

801 ms

gebouw-2016-dv4c2724.jpg

gebouw-2016-dv4c2724.jpg

817 ms

symbion.png

symbion.png

847 ms

vmbo-t-venster.jpg

vmbo-t-venster.jpg

750 ms

logo-t-venster-opent-je-toekomst-rgb.jpg

logo-t-venster-opent-je-toekomst-rgb.jpg

764 ms

Accessibility Review

quadraam.nl accessibility score

64

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

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

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

quadraam.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

quadraam.nl SEO score

85

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

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 Quadraam.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 Quadraam.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

quadraam.nl

Open Graph data is detected on the main page of Quadraam. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: