Tools & Wizards About Us
onderzoekenadvies.org screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

onderzoekenadvies.org

Kantelwerkers onderzoek, advies en procesbegeleiding

Page Load Speed

3.9 sec in total

First Response

214 ms

Resources Loaded

3.5 sec

Page Rendered

151 ms

onderzoekenadvies.org screenshot

About Website

Welcome to onderzoekenadvies.org homepage info - get ready to check Onderzoek En Advies best content right away, or after learning these important things about onderzoekenadvies.org

Wij helpen mensen in organisaties ontdekken waarom verandering in organisaties of gebieden stagneert, welke rol gedragsaspecten spelen en wat nodig is voor een kanteling

Visit onderzoekenadvies.org

Key Findings

We analyzed Onderzoekenadvies.org page load time and found that the first response time was 214 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

onderzoekenadvies.org performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.087

93/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

onderzoekenadvies.org

214 ms

kantelwerkers.nl

523 ms

screen.css

478 ms

prettyPhoto.css

484 ms

css

78 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Onderzoekenadvies.org, 75% (33 requests) were made to Kantelwerkers.nl and 7% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Kantelwerkers.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 120.0 kB (16%)

Content Size

744.5 kB

After Optimization

624.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onderzoekenadvies.org main page is 744.5 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. 20% of websites need less resources to load. Images take 583.6 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 17.6 kB

  • Original 23.3 kB
  • After minification 18.7 kB
  • After compression 5.8 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 4.6 kB, which is 20% 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 17.6 kB or 75% of the original size.

Image Optimization

-12%

Potential reduce by 71.0 kB

  • Original 583.6 kB
  • After minification 512.6 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, Onderzoek En Advies needs image optimization as it can save up to 71.0 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-23%

Potential reduce by 30.0 kB

  • Original 129.0 kB
  • After minification 129.0 kB
  • After compression 99.0 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 30.0 kB or 23% of the original size.

CSS Optimization

-16%

Potential reduce by 1.4 kB

  • Original 8.5 kB
  • After minification 8.4 kB
  • After compression 7.1 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. Onderzoekenadvies.org needs all CSS files to be minified and compressed as it can save up to 1.4 kB or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (51%)

Requests Now

39

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onderzoek En 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 11 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

onderzoekenadvies.org

onderzoekenadvies.org

214 ms

kantelwerkers.nl

kantelwerkers.nl

523 ms

screen.css

screen.css

478 ms

prettyPhoto.css

prettyPhoto.css

484 ms

css

css

78 ms

modernizr-2.0.6.min.js

modernizr-2.0.6.min.js

491 ms

jquery.min.js

jquery.min.js

35 ms

jquery.cycle.all.min.js

jquery.cycle.all.min.js

489 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

494 ms

jquery.watermark.min.js

jquery.watermark.min.js

533 ms

buttons.js

buttons.js

34 ms

plugins.js

plugins.js

864 ms

script.js

script.js

869 ms

fonts.css

fonts.css

484 ms

doc2form.css

doc2form.css

474 ms

editor.css

editor.css

483 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

41 ms

KFOlCnqEu92Fr1MmSU5fBBc-.woff

KFOlCnqEu92Fr1MmSU5fBBc-.woff

42 ms

KFOlCnqEu92Fr1MmWUlfBBc-.woff

KFOlCnqEu92Fr1MmWUlfBBc-.woff

62 ms

logo.png

logo.png

467 ms

home-hover.png

home-hover.png

464 ms

meerstemmigheid_complexiteit_Normal.jpg

meerstemmigheid_complexiteit_Normal.jpg

469 ms

plaatje_masterclass_Normal.jpg

plaatje_masterclass_Normal.jpg

468 ms

cursussen_en_workshops_icon.png

cursussen_en_workshops_icon.png

462 ms

dialogue_icon.jpg

dialogue_icon.jpg

470 ms

proces_begeleiding_icon.png

proces_begeleiding_icon.png

894 ms

opdrachtgevers_icon.png

opdrachtgevers_icon.png

907 ms

bibliotheek_icon.png

bibliotheek_icon.png

905 ms

blog_icon.png

blog_icon.png

902 ms

a_o_items_renate_werkman_Small.jpg

a_o_items_renate_werkman_Small.jpg

916 ms

m_o_Small.jpg

m_o_Small.jpg

934 ms

stress-management-in-business_1024x768_Small.jpg

stress-management-in-business_1024x768_Small.jpg

1356 ms

1.jpg

1.jpg

1371 ms

f.png

f.png

1364 ms

t.png

t.png

1366 ms

l.png

l.png

1378 ms

count.js

count.js

28 ms

footer-bg.jpg

footer-bg.jpg

1387 ms

contact_icon.png

contact_icon.png

1800 ms

nav_icon.png

nav_icon.png

1808 ms

volg_icon.png

volg_icon.png

1813 ms

ga.js

ga.js

25 ms

ga.js

ga.js

3 ms

__utm.gif

__utm.gif

10 ms

Accessibility Review

onderzoekenadvies.org accessibility score

71

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

onderzoekenadvies.org 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

onderzoekenadvies.org SEO score

69

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Onderzoekenadvies.org can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that Onderzoekenadvies.org 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

onderzoekenadvies.org

Open Graph description is not detected on the main page of Onderzoek En 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: