Tools & Wizards About Us
dijkman.nl screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

dijkman.nl

Zorgeloos profiteren van de zon | Dijkman Zonne-energie

Page Load Speed

3.6 sec in total

First Response

367 ms

Resources Loaded

2.6 sec

Page Rendered

661 ms

dijkman.nl screenshot

About Website

Click here to check amazing Dijkman content. Otherwise, check out these important facts you probably never knew about dijkman.nl

Dijkman zonne-energie en zonnepanelen. persoonlijk advies van onze specialisten, eigen montageteam en zorgeloos profiteren van de zon met Dijkman.nl

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Key Findings

We analyzed Dijkman.nl page load time and found that the first response time was 367 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

dijkman.nl performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value9.7 s

10/100

10%

TBT (Total Blocking Time)

Value2,720 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.397

25/100

15%

TTI (Time to Interactive)

Value17.3 s

4/100

10%

Network Requests Diagram

dijkman.nl

367 ms

dijkman.nl

535 ms

gtm.js

842 ms

10041132-10041412.js

381 ms

screen.min.css

263 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 80% of them (40 requests) were addressed to the original Dijkman.nl, 4% (2 requests) were made to Clarity.ms and 2% (1 request) were made to Metrics.dijkman.nl. The less responsive or slowest element that took the longest time to load (899 ms) belongs to the original domain Dijkman.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 325.0 kB (27%)

Content Size

1.2 MB

After Optimization

864.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dijkman.nl main page is 1.2 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. 45% of websites need less resources to load. Javascripts take 543.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 51.8 kB

  • Original 63.3 kB
  • After minification 48.9 kB
  • After compression 11.5 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. This page needs HTML code to be minified as it can gain 14.4 kB, which is 23% 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 51.8 kB or 82% of the original size.

Image Optimization

-20%

Potential reduce by 110.1 kB

  • Original 537.5 kB
  • After minification 427.4 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, Dijkman needs image optimization as it can save up to 110.1 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 163.0 kB

  • Original 543.6 kB
  • After minification 543.6 kB
  • After compression 380.6 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 163.0 kB or 30% of the original size.

CSS Optimization

-0%

Potential reduce by 89 B

  • Original 45.1 kB
  • After minification 45.1 kB
  • After compression 45.0 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. Dijkman.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 9 (21%)

Requests Now

42

After Optimization

33

  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dijkman. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

dijkman.nl

dijkman.nl

367 ms

dijkman.nl

dijkman.nl

535 ms

gtm.js

gtm.js

842 ms

10041132-10041412.js

10041132-10041412.js

381 ms

screen.min.css

screen.min.css

263 ms

optimize.js

optimize.js

67 ms

app.min.js

app.min.js

647 ms

check-list-orange.svg

check-list-orange.svg

90 ms

sun-white.svg

sun-white.svg

179 ms

arrow-right-white.svg

arrow-right-white.svg

260 ms

menu-active.svg

menu-active.svg

261 ms

Website%20Voorst.1fc75f081fd20c73f5d0650a15fec8b3.webp

Website%20Voorst.1fc75f081fd20c73f5d0650a15fec8b3.webp

520 ms

uitgelicht-image-stap1.f37051823bb9e5852977d2f3a4e692c9.jpg

uitgelicht-image-stap1.f37051823bb9e5852977d2f3a4e692c9.jpg

262 ms

EMS%20icon.5c01b81fca5d706c1c6dcbce8e09616e.webp

EMS%20icon.5c01b81fca5d706c1c6dcbce8e09616e.webp

266 ms

laadpaal%20icon.42dbb8c064f9a3b034137b632af7a549.webp

laadpaal%20icon.42dbb8c064f9a3b034137b632af7a549.webp

348 ms

batterij.702a228674f557c937fde2e336ed4d6e.webp

batterij.702a228674f557c937fde2e336ed4d6e.webp

349 ms

Max%20Dijkman%20header%20foto.675e648ccec5f66be118325a599910fd.jpg

Max%20Dijkman%20header%20foto.675e648ccec5f66be118325a599910fd.jpg

527 ms

werken%20bij%20dijkman%20zonne%20energie.8ebbe065425ce3e50f14b1f507abc488.jpg

werken%20bij%20dijkman%20zonne%20energie.8ebbe065425ce3e50f14b1f507abc488.jpg

354 ms

werken%20bij%20Dijkman2.79ee1304db2642b57f8ba2cb7ddae69b.png

werken%20bij%20Dijkman2.79ee1304db2642b57f8ba2cb7ddae69b.png

383 ms

iStock-1041727358.67b4cc7431e8c2fe86390f6750bd56f0.webp

iStock-1041727358.67b4cc7431e8c2fe86390f6750bd56f0.webp

606 ms

arrow-right-orange.svg

arrow-right-orange.svg

487 ms

Brian%20Thijs%20European%20Solar%20Games%20Nederland%202024.041a75b9c3696288fc24cb41dfeb738d.webp

Brian%20Thijs%20European%20Solar%20Games%20Nederland%202024.041a75b9c3696288fc24cb41dfeb738d.webp

489 ms

Besparen%20met%20zonnepanelen%20installatie%20-%20rijtjeswoningen%20dijkman.031663992d149d67734215eab9047527.webp

Besparen%20met%20zonnepanelen%20installatie%20-%20rijtjeswoningen%20dijkman.031663992d149d67734215eab9047527.webp

494 ms

Mark.8a969c736055e267204bf32b23ae379a.png

Mark.8a969c736055e267204bf32b23ae379a.png

783 ms

zonnepanelen%20monteur%20dijkman.0a3993a24303a1484e44e2e33f6ccdc7.webp

zonnepanelen%20monteur%20dijkman.0a3993a24303a1484e44e2e33f6ccdc7.webp

531 ms

_MIS5754.ea61574b4c61294a67fb82813f62f493.webp

_MIS5754.ea61574b4c61294a67fb82813f62f493.webp

586 ms

Dijkman%20energie%20management%20systeem%20.9d197a63b162e5a71933ef67b7db63b6.webp

Dijkman%20energie%20management%20systeem%20.9d197a63b162e5a71933ef67b7db63b6.webp

607 ms

Dijkman%20Zonne%20energie%20monteur%20met%20zonnepaneel.dcc65522068c5faf1c3f0c73682d4230.webp

Dijkman%20Zonne%20energie%20monteur%20met%20zonnepaneel.dcc65522068c5faf1c3f0c73682d4230.webp

615 ms

lensflare.png

lensflare.png

705 ms

feedback-company-icon-white.svg

feedback-company-icon-white.svg

678 ms

installq%20footer%202.png

installq%20footer%202.png

694 ms

Logo-Holland-Solar-Juni-2018.png

Logo-Holland-Solar-Juni-2018.png

695 ms

registered%20Solar-Specialist%20wit.png

registered%20Solar-Specialist%20wit.png

705 ms

registered%20Solar-Topfitter%20wit.png

registered%20Solar-Topfitter%20wit.png

770 ms

2021%20-%20Registered%20Storage-Specialist%20(1).png

2021%20-%20Registered%20Storage-Specialist%20(1).png

782 ms

sbb-beeldmerk-zw.png

sbb-beeldmerk-zw.png

784 ms

Logo-SGZE%20kleiner.png

Logo-SGZE%20kleiner.png

793 ms

Nen%201010_wit.png

Nen%201010_wit.png

793 ms

poppins-v13-latin-regular.woff

poppins-v13-latin-regular.woff

805 ms

font.woff

font.woff

814 ms

font.woff

font.woff

899 ms

caveat-v8-latin-regular.woff

caveat-v8-latin-regular.woff

838 ms

font.woff

font.woff

810 ms

uc.js

uc.js

63 ms

destination

destination

77 ms

analytics.js

analytics.js

35 ms

98qqoc5a49

98qqoc5a49

333 ms

ping.js

ping.js

52 ms

cc19d0b4-1d08-4675-bbdf-8b4787370536.js

cc19d0b4-1d08-4675-bbdf-8b4787370536.js

847 ms

clarity.js

clarity.js

7 ms

Accessibility Review

dijkman.nl accessibility score

86

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 progressbar elements do not have accessible names.

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

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

dijkman.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

High

Page has valid source maps

SEO Factors

dijkman.nl SEO score

89

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

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 Dijkman.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 Dijkman.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

dijkman.nl

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