Tools & Wizards About Us
voedingscentrum.nl screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

voedingscentrum.nl

Homepage Voedingscentrum | Voedingscentrum

Page Load Speed

2.8 sec in total

First Response

195 ms

Resources Loaded

2.3 sec

Page Rendered

367 ms

voedingscentrum.nl screenshot

About Website

Visit voedingscentrum.nl now to see the best up-to-date Voedingscentrum content for Netherlands and also check out these interesting facts you probably never knew about voedingscentrum.nl

Op Voedingscentrum.nl vind je onafhankelijke informatie over gezond eten, veilig eten en duurzaam eten. Actuele informatie over voeding voor consumenten en professionals.

Visit voedingscentrum.nl

Key Findings

We analyzed Voedingscentrum.nl page load time and found that the first response time was 195 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

voedingscentrum.nl performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value4.5 s

72/100

10%

TBT (Total Blocking Time)

Value760 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.071

96/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

voedingscentrum.nl

195 ms

www.voedingscentrum.nl

378 ms

nl.aspx

303 ms

desktop_essentials.min.css

262 ms

desktop_bundle_essentials.min.js

350 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 71% of them (35 requests) were addressed to the original Voedingscentrum.nl, 8% (4 requests) were made to D2i2wahzwrm1n5.cloudfront.net and 8% (4 requests) were made to Static.voedingscentrum.nl. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Static.voedingscentrum.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.3 kB (18%)

Content Size

751.6 kB

After Optimization

617.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Voedingscentrum.nl main page is 751.6 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. 40% of websites need less resources to load. Images take 460.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 66.8 kB

  • Original 83.3 kB
  • After minification 69.4 kB
  • After compression 16.4 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 13.9 kB, which is 17% 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 66.8 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 22.8 kB

  • Original 460.4 kB
  • After minification 437.6 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. Voedingscentrum images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 43.6 kB

  • Original 194.2 kB
  • After minification 194.1 kB
  • After compression 150.6 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 43.6 kB or 22% of the original size.

CSS Optimization

-8%

Potential reduce by 1.1 kB

  • Original 13.8 kB
  • After minification 13.8 kB
  • After compression 12.6 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. Voedingscentrum.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (58%)

Requests Now

38

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Voedingscentrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

voedingscentrum.nl

voedingscentrum.nl

195 ms

www.voedingscentrum.nl

www.voedingscentrum.nl

378 ms

nl.aspx

nl.aspx

303 ms

desktop_essentials.min.css

desktop_essentials.min.css

262 ms

desktop_bundle_essentials.min.js

desktop_bundle_essentials.min.js

350 ms

desktop_bundle_defer.min.js

desktop_bundle_defer.min.js

463 ms

shadowbox.js

shadowbox.js

381 ms

js

js

66 ms

Ajax.css

Ajax.css

31 ms

GetFiles.aspx

GetFiles.aspx

385 ms

WebForms.js

WebForms.js

26 ms

MicrosoftAjax.js

MicrosoftAjax.js

29 ms

MicrosoftAjaxWebForms.js

MicrosoftAjaxWebForms.js

30 ms

GetFiles.aspx

GetFiles.aspx

689 ms

underscore-min.js

underscore-min.js

39 ms

Core.js

Core.js

37 ms

Ajax.js

Ajax.js

38 ms

jQueryExternal.js

jQueryExternal.js

37 ms

OverlayScript.js

OverlayScript.js

37 ms

sizzle.js

sizzle.js

88 ms

shadowbox-nl.js

shadowbox-nl.js

91 ms

shadowbox-img.js

shadowbox-img.js

92 ms

shadowbox-iframe.js

shadowbox-iframe.js

98 ms

swfobject.js

swfobject.js

166 ms

shadowbox-swf.js

shadowbox-swf.js

176 ms

shadowbox-jquery.js

shadowbox-jquery.js

182 ms

preview_mvdw.png

preview_mvdw.png

467 ms

bgfoot.png

bgfoot.png

98 ms

ajax-loader.gif

ajax-loader.gif

97 ms

logo-vc-zw-50.gif

logo-vc-zw-50.gif

97 ms

preview_vegfav.png

preview_vegfav.png

1007 ms

preview_magazine.png

preview_magazine.png

829 ms

preview_pro.png

preview_pro.png

849 ms

Ubuntu-Light.ttf

Ubuntu-Light.ttf

583 ms

Ubuntu-Regular.ttf

Ubuntu-Regular.ttf

439 ms

Ubuntu-Medium.ttf

Ubuntu-Medium.ttf

340 ms

Ubuntu-Bold.ttf

Ubuntu-Bold.ttf

625 ms

vc_logo.svg

vc_logo.svg

98 ms

search.svg

search.svg

101 ms

AdaptiveAsset.ashx

AdaptiveAsset.ashx

171 ms

ZillaSlab-Medium.ttf

ZillaSlab-Medium.ttf

277 ms

ZillaSlab-Regular.ttf

ZillaSlab-Regular.ttf

443 ms

ZillaSlab-SemiBold.ttf

ZillaSlab-SemiBold.ttf

299 ms

ZillaSlab-Bold.ttf

ZillaSlab-Bold.ttf

470 ms

zuurstok.svg

zuurstok.svg

355 ms

social_fb.png

social_fb.png

363 ms

social_li.svg

social_li.svg

448 ms

social_ig.png

social_ig.png

450 ms

print.min.css

print.min.css

89 ms

Accessibility Review

voedingscentrum.nl accessibility score

68

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

Form elements do not have associated labels

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

voedingscentrum.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

voedingscentrum.nl SEO score

93

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

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 Voedingscentrum.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 Voedingscentrum.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

voedingscentrum.nl

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