Tools & Wizards About Us
zonnepanelen-pro.nl screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

zonnepanelen-pro.nl

Zonnepanelen Pro - hoogste kwaliteit, scherpe prijzen!

Page Load Speed

5.5 sec in total

First Response

941 ms

Resources Loaded

4.3 sec

Page Rendered

297 ms

zonnepanelen-pro.nl screenshot

About Website

Visit zonnepanelen-pro.nl now to see the best up-to-date Zonnepanelen Pro content and also check out these interesting facts you probably never knew about zonnepanelen-pro.nl

U overweegt zonnepanelen aan te schaffen? Nieuwtech Installatie levert kwaliteit panelen en zonneboilers tegen scherpe prijzen!

Visit zonnepanelen-pro.nl

Key Findings

We analyzed Zonnepanelen-pro.nl page load time and found that the first response time was 941 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

zonnepanelen-pro.nl performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.19

64/100

15%

TTI (Time to Interactive)

Value7.2 s

50/100

10%

Network Requests Diagram

www.zonnepanelen-pro.nl

941 ms

style.css

380 ms

js

71 ms

style.min.css

462 ms

styles.css

290 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 80% of them (41 requests) were addressed to the original Zonnepanelen-pro.nl, 10% (5 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Zonnepanelen-pro.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 338.7 kB (65%)

Content Size

524.2 kB

After Optimization

185.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zonnepanelen-pro.nl main page is 524.2 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. 25% of websites need less resources to load. Javascripts take 237.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 33.2 kB

  • Original 43.9 kB
  • After minification 42.9 kB
  • After compression 10.7 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. 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 33.2 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 3.0 kB

  • Original 64.9 kB
  • After minification 62.0 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. Zonnepanelen Pro images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 152.9 kB

  • Original 237.6 kB
  • After minification 220.7 kB
  • After compression 84.7 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 152.9 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 149.6 kB

  • Original 177.8 kB
  • After minification 163.8 kB
  • After compression 28.2 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. Zonnepanelen-pro.nl needs all CSS files to be minified and compressed as it can save up to 149.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (73%)

Requests Now

45

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zonnepanelen Pro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.zonnepanelen-pro.nl

www.zonnepanelen-pro.nl

941 ms

style.css

style.css

380 ms

js

js

71 ms

style.min.css

style.min.css

462 ms

styles.css

styles.css

290 ms

core_style.css

core_style.css

288 ms

light_style.css

light_style.css

287 ms

responsive.css

responsive.css

287 ms

css

css

39 ms

css

css

62 ms

shortcodes.css

shortcodes.css

647 ms

shortcodes_responsive.css

shortcodes_responsive.css

560 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

560 ms

page_templates.css

page_templates.css

562 ms

frontend-gtag.min.js

frontend-gtag.min.js

571 ms

jquery.min.js

jquery.min.js

909 ms

jquery-migrate.min.js

jquery-migrate.min.js

824 ms

comment-reply.min.js

comment-reply.min.js

824 ms

collapse.js

collapse.js

978 ms

jquery.fitvids.js

jquery.fitvids.js

846 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

1000 ms

et_flexslider.js

et_flexslider.js

1103 ms

jquery.easing-1.3.pack.js

jquery.easing-1.3.pack.js

1110 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

1207 ms

et-ptemplates-frontend.js

et-ptemplates-frontend.js

1182 ms

easing.js

easing.js

1195 ms

superfish.js

superfish.js

1287 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

1154 ms

analytics.js

analytics.js

23 ms

collect

collect

12 ms

zonnepanlen-pro.png

zonnepanlen-pro.png

283 ms

bg.png

bg.png

440 ms

nav-bg.png

nav-bg.png

514 ms

nav-top.png

nav-top.png

552 ms

dropdown-bg.png

dropdown-bg.png

552 ms

dropdown-arrow.png

dropdown-arrow.png

642 ms

nav-bottom.png

nav-bottom.png

734 ms

content-bg.png

content-bg.png

786 ms

content-bg-top.jpg

content-bg-top.jpg

800 ms

content-bg-bottom.jpg

content-bg-bottom.jpg

823 ms

shortcodes-sprite.png

shortcodes-sprite.png

918 ms

widget-line.png

widget-line.png

913 ms

zonneboiler.jpg

zonneboiler.jpg

276 ms

kosten-zonnepanelen.jpg

kosten-zonnepanelen.jpg

279 ms

zonnepanelen-recyclen.jpg

zonnepanelen-recyclen.jpg

280 ms

bespaar-geld-zonnepanelen.jpg

bespaar-geld-zonnepanelen.jpg

369 ms

SlGVmQWMvZQIdix7AFxXkHNSaA.ttf

SlGVmQWMvZQIdix7AFxXkHNSaA.ttf

21 ms

SlGWmQWMvZQIdix7AFxXmMh3eDs1Yg.ttf

SlGWmQWMvZQIdix7AFxXmMh3eDs1Yg.ttf

29 ms

ieVi2ZhZI2eCN5jzbjEETS9weq8-32meGCoYag.ttf

ieVi2ZhZI2eCN5jzbjEETS9weq8-32meGCoYag.ttf

55 ms

ieVl2ZhZI2eCN5jzbjEETS9weq8-19y7CA.ttf

ieVl2ZhZI2eCN5jzbjEETS9weq8-19y7CA.ttf

38 ms

ieVi2ZhZI2eCN5jzbjEETS9weq8-33mZGCoYag.ttf

ieVi2ZhZI2eCN5jzbjEETS9weq8-33mZGCoYag.ttf

39 ms

Accessibility Review

zonnepanelen-pro.nl accessibility score

82

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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.

Best Practices

zonnepanelen-pro.nl best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

High

Browser errors were logged to the console

SEO Factors

zonnepanelen-pro.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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zonnepanelen-pro.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 Zonnepanelen-pro.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

zonnepanelen-pro.nl

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