Tools & Wizards About Us
de-heeren.nl screenshot

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

de-heeren.nl

Full Service Internetbureau ⭐ .NET specialist sinds 2001

Page Load Speed

4.6 sec in total

First Response

469 ms

Resources Loaded

3.6 sec

Page Rendered

576 ms

de-heeren.nl screenshot

About Website

Visit de-heeren.nl now to see the best up-to-date De Heeren content and also check out these interesting facts you probably never knew about de-heeren.nl

Speak is een Full Service Internetbureau voor Resultaatgerichte Websites, Webshops, Portalen, Online Marketing en Apps. UMBRACO Gold Partner.

Visit de-heeren.nl

Key Findings

We analyzed De-heeren.nl page load time and found that the first response time was 469 ms and then it took 4.2 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

de-heeren.nl performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

de-heeren.nl

469 ms

www.speak.nl

236 ms

css-bundle.css.v638507266100000000

247 ms

jquery.min.js

346 ms

aos.js

432 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original De-heeren.nl, 99% (74 requests) were made to Speak.nl. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Speak.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 913.8 kB (12%)

Content Size

7.6 MB

After Optimization

6.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of De-heeren.nl main page is 7.6 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. 55% of websites need less resources to load. Images take 7.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 106.0 kB

  • Original 125.7 kB
  • After minification 102.6 kB
  • After compression 19.7 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 23.1 kB, which is 18% 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 106.0 kB or 84% of the original size.

Image Optimization

-11%

Potential reduce by 793.1 kB

  • Original 7.4 MB
  • After minification 6.6 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. Obviously, De Heeren needs image optimization as it can save up to 793.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-22%

Potential reduce by 14.7 kB

  • Original 66.4 kB
  • After minification 66.4 kB
  • After compression 51.7 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 14.7 kB or 22% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 15.5 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.

Requests Breakdown

Number of requests can be reduced by 4 (5%)

Requests Now

73

After Optimization

69

  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Heeren. 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

de-heeren.nl

de-heeren.nl

469 ms

www.speak.nl

www.speak.nl

236 ms

css-bundle.css.v638507266100000000

css-bundle.css.v638507266100000000

247 ms

jquery.min.js

jquery.min.js

346 ms

aos.js

aos.js

432 ms

jquery.validate.min.js

jquery.validate.min.js

438 ms

customScript.js

customScript.js

437 ms

lightcase.min.js

lightcase.min.js

438 ms

profiel_socials.png

profiel_socials.png

250 ms

Scroll%20down_pijl.gif

Scroll%20down_pijl.gif

169 ms

websites.svg

websites.svg

247 ms

ecommerce-webshops.svg

ecommerce-webshops.svg

256 ms

klant-portalen.svg

klant-portalen.svg

253 ms

online-marketing.svg

online-marketing.svg

251 ms

mobile-apps.svg

mobile-apps.svg

256 ms

icon_software_ontwikkeling.svg

icon_software_ontwikkeling.svg

342 ms

red-gradient-bottom.svg

red-gradient-bottom.svg

346 ms

ups-werken-bij-kooi.png

ups-werken-bij-kooi.png

1116 ms

score.jpg

score.jpg

1027 ms

usp_speedbooks.jpg

usp_speedbooks.jpg

829 ms

usp-kredietbank_goldpartner.webp

usp-kredietbank_goldpartner.webp

541 ms

usp_google-partner.png

usp_google-partner.png

1016 ms

03_2023.jpg

03_2023.jpg

630 ms

04_2023.jpg

04_2023.jpg

734 ms

kooicorp_thumbnail.jpg

kooicorp_thumbnail.jpg

730 ms

gardena_thumbnail.jpg

gardena_thumbnail.jpg

830 ms

allesoverdrinken_thumbnail.jpg

allesoverdrinken_thumbnail.jpg

832 ms

kooi_wit.svg

kooi_wit.svg

931 ms

kredietbank_wit.svg

kredietbank_wit.svg

932 ms

gardena_wit.svg

gardena_wit.svg

929 ms

honda_logo_wit.svg

honda_logo_wit.svg

1029 ms

ggzfriesland_wit.svg

ggzfriesland_wit.svg

1026 ms

teamalert_wit.svg

teamalert_wit.svg

1030 ms

cadix_wit.svg

cadix_wit.svg

1111 ms

nijsmellinghe_wit.svg

nijsmellinghe_wit.svg

1119 ms

debieb_wit.svg

debieb_wit.svg

1121 ms

isala_wit.svg

isala_wit.svg

1123 ms

smst_wit.svg

smst_wit.svg

1125 ms

legerdesheils_wit.svg

legerdesheils_wit.svg

1171 ms

synvest_wit.svg

synvest_wit.svg

1141 ms

olijslager_wit.png

olijslager_wit.png

1070 ms

score_wit.svg

score_wit.svg

1066 ms

verslavingskunde_wit.svg

verslavingskunde_wit.svg

1061 ms

heatlh2work_wit.png

heatlh2work_wit.png

1059 ms

lindecollege_wit.svg

lindecollege_wit.svg

1141 ms

royaldeboer_wit.svg

royaldeboer_wit.svg

1063 ms

cbt_wit.png

cbt_wit.png

1068 ms

fryslanhomes_wit.png

fryslanhomes_wit.png

1065 ms

husqvarna_wit.png

husqvarna_wit.png

1069 ms

speedbooks-wit.svg

speedbooks-wit.svg

1065 ms

ross-tucker.svg

ross-tucker.svg

1152 ms

gardena.svg

gardena.svg

1060 ms

ggzfriesland.svg

ggzfriesland.svg

1064 ms

speedbooks_wit.png

speedbooks_wit.png

873 ms

logo-kooi-white.svg

logo-kooi-white.svg

785 ms

blue-bottom-right.svg

blue-bottom-right.svg

687 ms

klantenvertellen-logo.svg

klantenvertellen-logo.svg

765 ms

umbraco.svg

umbraco.svg

672 ms

dotnet.svg

dotnet.svg

675 ms

google.svg

google.svg

678 ms

hello-dialog.svg

hello-dialog.svg

579 ms

channable-logo.png

channable-logo.png

580 ms

1024px-microsoft_bing_logo.png

1024px-microsoft_bing_logo.png

660 ms

cookiebot.svg

cookiebot.svg

579 ms

klanten_vertellen.svg

klanten_vertellen.svg

575 ms

mollie_2023.svg

mollie_2023.svg

576 ms

partners_mobiel_3rij-1.png

partners_mobiel_3rij-1.png

574 ms

rutger-blauwe-muur.jpg

rutger-blauwe-muur.jpg

576 ms

umbraco-gold-partner.svg

umbraco-gold-partner.svg

575 ms

umbraco_commerce.png

umbraco_commerce.png

577 ms

tdm.svg

tdm.svg

575 ms

microsoft-advertising-select-partner.svg

microsoft-advertising-select-partner.svg

575 ms

bronze-partner-2023_white.png

bronze-partner-2023_white.png

576 ms

google-partner.svg

google-partner.svg

578 ms

footer-background.png

footer-background.png

587 ms

Accessibility Review

de-heeren.nl accessibility score

67

Accessibility Issues

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

de-heeren.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

SEO Factors

de-heeren.nl SEO score

93

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

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 De-heeren.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 De-heeren.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

de-heeren.nl

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