Tools & Wizards About Us
dezonnepaneelexpert.nl screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

dezonnepaneelexpert.nl

Zonnepanelen: geld- en energiebesparend

Page Load Speed

2.8 sec in total

First Response

421 ms

Resources Loaded

1.6 sec

Page Rendered

759 ms

dezonnepaneelexpert.nl screenshot

About Website

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

Informatieve website over zonnepanelen: de werking, rendement, montage en subsidies voor zonnepanelen

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Key Findings

We analyzed Dezonnepaneelexpert.nl page load time and found that the first response time was 421 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

dezonnepaneelexpert.nl performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value640 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0.33

34/100

15%

TTI (Time to Interactive)

Value10.0 s

26/100

10%

Network Requests Diagram

dezonnepaneelexpert.nl

421 ms

114 ms

187 ms

style.css

179 ms

201 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 90% of them (46 requests) were addressed to the original Dezonnepaneelexpert.nl, 4% (2 requests) were made to Pagead2.googlesyndication.com and 4% (2 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (519 ms) belongs to the original domain Dezonnepaneelexpert.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 69.2 kB (13%)

Content Size

531.2 kB

After Optimization

462.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dezonnepaneelexpert.nl main page is 531.2 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. Javascripts take 282.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 45.2 kB

  • Original 58.4 kB
  • After minification 58.3 kB
  • After compression 13.2 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 45.2 kB or 77% of the original size.

Image Optimization

-12%

Potential reduce by 22.2 kB

  • Original 188.5 kB
  • After minification 166.2 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, Dezonnepaneelexpert needs image optimization as it can save up to 22.2 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

-1%

Potential reduce by 1.4 kB

  • Original 282.0 kB
  • After minification 282.0 kB
  • After compression 280.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-13%

Potential reduce by 317 B

  • Original 2.4 kB
  • After minification 2.4 kB
  • After compression 2.1 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. Dezonnepaneelexpert.nl needs all CSS files to be minified and compressed as it can save up to 317 B or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (79%)

Requests Now

43

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dezonnepaneelexpert. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dezonnepaneelexpert.nl

dezonnepaneelexpert.nl

421 ms

114 ms

187 ms

style.css

style.css

179 ms

201 ms

style.css

style.css

182 ms

sqrstyle.css

sqrstyle.css

195 ms

223 ms

283 ms

style.css

style.css

273 ms

style.css

style.css

270 ms

style.css

style.css

290 ms

323 ms

ptsans.css

ptsans.css

317 ms

opensans.css

opensans.css

353 ms

jquery.js

jquery.js

459 ms

lightbox.js

lightbox.js

371 ms

lazyload.js

lazyload.js

385 ms

sliderdynamic.js

sliderdynamic.js

409 ms

dropdown.js

dropdown.js

413 ms

searchbox.js

searchbox.js

436 ms

stickybutton.js

stickybutton.js

458 ms

factpano.js

factpano.js

482 ms

textpicturesplit.js

textpicturesplit.js

503 ms

tab.js

tab.js

503 ms

js

js

58 ms

adsbygoogle.js

adsbygoogle.js

113 ms

sourcesanspro.css

sourcesanspro.css

340 ms

174 ms

logo.png

logo.png

175 ms

99 ms

172 ms

vastzetten-zonnepaneel-op-dak-1085-610.jpg

vastzetten-zonnepaneel-op-dak-1085-610.jpg

439 ms

96 ms

225 ms

227 ms

230 ms

default.png

default.png

195 ms

trans.gif

trans.gif

213 ms

290 ms

301 ms

hellende-daken-zonnecellen-640br-480hg.jpg

hellende-daken-zonnecellen-640br-480hg.jpg

519 ms

show_ads_impl.js

show_ads_impl.js

241 ms

ptsans-regular-webfont.woff

ptsans-regular-webfont.woff

309 ms

ptsans-bold-webfont.woff

ptsans-bold-webfont.woff

222 ms

opensans-webfont.woff

opensans-webfont.woff

218 ms

opensans-bold-webfont.woff

opensans-bold-webfont.woff

217 ms

ptsans-bolditalic-webfont.woff

ptsans-bolditalic-webfont.woff

290 ms

ptsans-italic-webfont.woff

ptsans-italic-webfont.woff

366 ms

zrt_lookup.html

zrt_lookup.html

57 ms

ads

ads

33 ms

Accessibility Review

dezonnepaneelexpert.nl accessibility score

89

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

Links do not have a discernible name

Best Practices

dezonnepaneelexpert.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

High

Page has valid source maps

SEO Factors

dezonnepaneelexpert.nl SEO score

91

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

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 Dezonnepaneelexpert.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 Dezonnepaneelexpert.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

dezonnepaneelexpert.nl

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