Tools & Wizards About Us
onderwijsadvies.nl screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

onderwijsadvies.nl

Wij gaan voor het beste onderwijs - OnderwijsAdvies

Page Load Speed

7.4 sec in total

First Response

272 ms

Resources Loaded

6.9 sec

Page Rendered

205 ms

onderwijsadvies.nl screenshot

About Website

Visit onderwijsadvies.nl now to see the best up-to-date Onderwijs Advies content and also check out these interesting facts you probably never knew about onderwijsadvies.nl

Wij gaan voor het beste onderwijs en de beste zorg voor elk kind en iedere jongere. Bekijk op de site onze diverse diensten en producten voor het onderwijs.

Visit onderwijsadvies.nl

Key Findings

We analyzed Onderwijsadvies.nl page load time and found that the first response time was 272 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

onderwijsadvies.nl performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value7.1 s

32/100

10%

TBT (Total Blocking Time)

Value800 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

onderwijsadvies.nl

272 ms

www.onderwijsadvies.nl

854 ms

styles

810 ms

jquery

1347 ms

webshop

666 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 87% of them (34 requests) were addressed to the original Onderwijsadvies.nl, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Restapi.mailplus.nl. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Onderwijsadvies.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 51.0 kB (8%)

Content Size

610.3 kB

After Optimization

559.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onderwijsadvies.nl main page is 610.3 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. 30% of websites need less resources to load. Images take 552.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 16.6 kB

  • Original 22.1 kB
  • After minification 20.3 kB
  • After compression 5.5 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 16.6 kB or 75% of the original size.

Image Optimization

-4%

Potential reduce by 23.6 kB

  • Original 552.7 kB
  • After minification 529.0 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. Onderwijs Advies images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 8.9 kB

  • Original 33.2 kB
  • After minification 31.3 kB
  • After compression 24.3 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 8.9 kB or 27% of the original size.

CSS Optimization

-80%

Potential reduce by 1.8 kB

  • Original 2.3 kB
  • After minification 1.9 kB
  • After compression 458 B

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. Onderwijsadvies.nl needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (31%)

Requests Now

35

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onderwijs Advies. 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

onderwijsadvies.nl

onderwijsadvies.nl

272 ms

www.onderwijsadvies.nl

www.onderwijsadvies.nl

854 ms

styles

styles

810 ms

jquery

jquery

1347 ms

webshop

webshop

666 ms

scripts

scripts

891 ms

LcEgvsCNYs8LKFVDzmQJ6q6is4zsAn7m

LcEgvsCNYs8LKFVDzmQJ6q6is4zsAn7m

521 ms

styles.css

styles.css

701 ms

analytics.js

analytics.js

20 ms

bg-home.png

bg-home.png

760 ms

bg-top.png

bg-top.png

795 ms

logo-onderwijsadvies.png

logo-onderwijsadvies.png

985 ms

ico-facebook.png

ico-facebook.png

780 ms

ico-twitter.png

ico-twitter.png

1473 ms

ico-linkedin.png

ico-linkedin.png

1491 ms

ico-search.png

ico-search.png

1528 ms

btn-arrow.png

btn-arrow.png

1668 ms

ico-shop.png

ico-shop.png

1597 ms

ico-profile.png

ico-profile.png

2091 ms

GROEI-VO-090.jpg

GROEI-VO-090.jpg

2451 ms

groei-093.jpg

groei-093.jpg

2624 ms

groei-jonge-kind-27.jpg

groei-jonge-kind-27.jpg

2518 ms

groei-vo-067.jpg

groei-vo-067.jpg

2471 ms

groei-079.jpg

groei-079.jpg

2773 ms

groei-jonge-kind-06.jpg

groei-jonge-kind-06.jpg

2576 ms

btn-search-home.png

btn-search-home.png

3035 ms

btn-bg-home.png

btn-bg-home.png

3206 ms

ico-phone-sm.png

ico-phone-sm.png

3235 ms

ico-mail-sm.png

ico-mail-sm.png

3239 ms

meertaligen-logopedie.jpg

meertaligen-logopedie.jpg

3421 ms

bg-calendar-home.png

bg-calendar-home.png

3832 ms

bg-footer.png

bg-footer.png

3840 ms

arrow-footer.png

arrow-footer.png

3873 ms

collect

collect

12 ms

bg-title.png

bg-title.png

3897 ms

cronospro-semibold-webfont.woff

cronospro-semibold-webfont.woff

3893 ms

collect

collect

54 ms

close2.png

close2.png

589 ms

bg-newsletterform.png

bg-newsletterform.png

229 ms

Accessibility Review

onderwijsadvies.nl accessibility score

94

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

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

onderwijsadvies.nl best practices score

83

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

onderwijsadvies.nl SEO score

98

Search Engine Optimization Advices

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 Onderwijsadvies.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 Onderwijsadvies.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

onderwijsadvies.nl

Open Graph description is not detected on the main page of Onderwijs Advies. 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: