Tools & Wizards About Us

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

zonenco.nl

Zon&Co – Expert in zonne-energie

Page Load Speed

13.5 sec in total

First Response

348 ms

Resources Loaded

12.5 sec

Page Rendered

629 ms

About Website

Welcome to zonenco.nl homepage info - get ready to check Zon En Co best content right away, or after learning these important things about zonenco.nl

Zonnepanelen van Zon&Co? Persoonlijk en eerlijk advies, jarenlange ervaring met de beste kwaliteit én 25 jaar garantie! Vraag direct een offerte aan.

Visit zonenco.nl

Key Findings

We analyzed Zonenco.nl page load time and found that the first response time was 348 ms and then it took 13.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

zonenco.nl performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value13.8 s

1/100

10%

TBT (Total Blocking Time)

Value2,360 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value16.9 s

5/100

10%

Network Requests Diagram

zonenco.nl

348 ms

www.zonenco.nl

1853 ms

api.js

34 ms

wp-emoji-release.min.js

288 ms

styles.css

287 ms

Our browser made a total of 201 requests to load all elements on the main page. We found that 92% of them (185 requests) were addressed to the original Zonenco.nl, 3% (7 requests) were made to Pro.fontawesome.com and 1% (2 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Zonenco.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (36%)

Content Size

3.1 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zonenco.nl main page is 3.1 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. 70% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 1.1 MB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 184.0 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 1.1 MB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 4.2 kB

  • Original 1.3 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. Zon En Co images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 36.5 kB

  • Original 510.3 kB
  • After minification 510.3 kB
  • After compression 473.8 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

-10%

Potential reduce by 9.3 kB

  • Original 94.9 kB
  • After minification 94.5 kB
  • After compression 85.6 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. Zonenco.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 169 (88%)

Requests Now

192

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 192 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zon En Co. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 85 to 1 for JavaScripts and from 86 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

zonenco.nl accessibility score

95

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.

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

Links do not have a discernible name

Best Practices

zonenco.nl best practices score

92

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

SEO Factors

zonenco.nl SEO score

99

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

    NL

  • Encoding

    UTF-8

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

Open Graph description is not detected on the main page of Zon En Co. 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: