Tools & Wizards About Us
duurzaambouwloket.nl screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 96

    SEO

    Google-friendlier than
    91% of websites

duurzaambouwloket.nl

Duurzaam Bouwloket | Gasloos vrij wonen, wat heb je daarvoor nodig?

Page Load Speed

4.7 sec in total

First Response

550 ms

Resources Loaded

3.9 sec

Page Rendered

193 ms

duurzaambouwloket.nl screenshot

About Website

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

Duurzaam Bouwloket, het energieloket voor particulieren en ondernemers op het gebied van energiebesparing. Daar waar gemeenten momenteel druk bezig zijn met de voorbereidingen naar een aardgasloos Ned...

Visit duurzaambouwloket.nl

Key Findings

We analyzed Duurzaambouwloket.nl page load time and found that the first response time was 550 ms and then it took 4.1 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

duurzaambouwloket.nl performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.437

21/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

duurzaambouwloket.nl

550 ms

index.nieuw2.php

112 ms

jquery-1.8.2.min.js

176 ms

opmaak.css

254 ms

jquery.js

264 ms

Our browser made a total of 188 requests to load all elements on the main page. We found that 65% of them (122 requests) were addressed to the original Duurzaambouwloket.nl, 11% (20 requests) were made to Static.xx.fbcdn.net and 9% (17 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Duurzaambouwloket.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 611.3 kB (29%)

Content Size

2.1 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Duurzaambouwloket.nl main page is 2.1 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 47.5 kB

  • Original 58.5 kB
  • After minification 54.1 kB
  • After compression 11.0 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 47.5 kB or 81% of the original size.

Image Optimization

-11%

Potential reduce by 163.2 kB

  • Original 1.5 MB
  • After minification 1.3 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, Duurzaam Bouwloket needs image optimization as it can save up to 163.2 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

-66%

Potential reduce by 274.4 kB

  • Original 414.4 kB
  • After minification 370.2 kB
  • After compression 140.0 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 274.4 kB or 66% of the original size.

CSS Optimization

-85%

Potential reduce by 126.3 kB

  • Original 147.8 kB
  • After minification 123.5 kB
  • After compression 21.5 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. Duurzaambouwloket.nl needs all CSS files to be minified and compressed as it can save up to 126.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 52 (28%)

Requests Now

185

After Optimization

133

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 185 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duurzaam Bouwloket. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

duurzaambouwloket.nl

duurzaambouwloket.nl

550 ms

index.nieuw2.php

index.nieuw2.php

112 ms

jquery-1.8.2.min.js

jquery-1.8.2.min.js

176 ms

opmaak.css

opmaak.css

254 ms

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264 ms

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196 ms

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195 ms

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194 ms

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260 ms

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270 ms

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273 ms

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457 ms

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css

24 ms

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5 ms

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15 ms

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275 ms

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185 ms

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794 ms

syndication

syndication

88 ms

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175 ms

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33 ms

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38 ms

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65 ms

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580 ms

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196 ms

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573 ms

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542 ms

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552 ms

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Accessibility Review

duurzaambouwloket.nl accessibility score

98

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

duurzaambouwloket.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

SEO Factors

duurzaambouwloket.nl SEO score

96

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duurzaambouwloket.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Duurzaambouwloket.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

duurzaambouwloket.nl

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