Tools & Wizards About Us
zelfenergieproduceren.nl screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

zelfenergieproduceren.nl

Zelf energie produceren is simpel! | Zelf energie opwekken

Page Load Speed

7.7 sec in total

First Response

310 ms

Resources Loaded

7 sec

Page Rendered

350 ms

zelfenergieproduceren.nl screenshot

About Website

Welcome to zelfenergieproduceren.nl homepage info - get ready to check Zelf Energie Produceren best content for Netherlands right away, or after learning these important things about zelfenergieproduceren.nl

Zelf energie produceren of opwekken? De website zelfenergieproduceren.nl helpt u op weg. Samen door de energietransitie op weg naar

Visit zelfenergieproduceren.nl

Key Findings

We analyzed Zelfenergieproduceren.nl page load time and found that the first response time was 310 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

zelfenergieproduceren.nl performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value3,970 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.297

40/100

15%

TTI (Time to Interactive)

Value21.9 s

1/100

10%

Network Requests Diagram

zelfenergieproduceren.nl

310 ms

www.zelfenergieproduceren.nl

691 ms

buddybar-style.css

428 ms

usernoise-embedded.css

519 ms

button.css

433 ms

Our browser made a total of 119 requests to load all elements on the main page. We found that 3% of them (4 requests) were addressed to the original Zelfenergieproduceren.nl, 64% (76 requests) were made to Zep-enexisbv.netdna-ssl.com and 17% (20 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (4.4 sec) relates to the external source Zep-enexisbv.netdna-ssl.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (54%)

Content Size

2.9 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zelfenergieproduceren.nl main page is 2.9 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. 60% of websites need less resources to load. CSS take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 83.9 kB

  • Original 101.8 kB
  • After minification 101.8 kB
  • After compression 17.9 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 83.9 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 6.5 kB

  • Original 987.1 kB
  • After minification 980.6 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. Zelf Energie Produceren images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 396.2 kB

  • Original 591.0 kB
  • After minification 566.8 kB
  • After compression 194.9 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 396.2 kB or 67% of the original size.

CSS Optimization

-88%

Potential reduce by 1.1 MB

  • Original 1.2 MB
  • After minification 1.1 MB
  • After compression 143.8 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. Zelfenergieproduceren.nl needs all CSS files to be minified and compressed as it can save up to 1.1 MB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 72 (62%)

Requests Now

116

After Optimization

44

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zelf Energie Produceren. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 44 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zelfenergieproduceren.nl

zelfenergieproduceren.nl

310 ms

www.zelfenergieproduceren.nl

www.zelfenergieproduceren.nl

691 ms

buddybar-style.css

buddybar-style.css

428 ms

usernoise-embedded.css

usernoise-embedded.css

519 ms

button.css

button.css

433 ms

popup.css

popup.css

756 ms

discussion.css

discussion.css

520 ms

embedded.css

embedded.css

553 ms

bbpress.css

bbpress.css

864 ms

buddypress.min.css

buddypress.min.css

959 ms

styles.css

styles.css

1021 ms

cli-style.css

cli-style.css

874 ms

fball_fbbutton.css

fball_fbbutton.css

1127 ms

postratings-css.css

postratings-css.css

1143 ms

bootstrap.min.css

bootstrap.min.css

1745 ms

font-awesome.min.css

font-awesome.min.css

1333 ms

jquery.mmenu.all.css

jquery.mmenu.all.css

1482 ms

plugins.min.css

plugins.min.css

1540 ms

style.min.css

style.min.css

1477 ms

widget.css

widget.css

1490 ms

nouislider.fox.css

nouislider.fox.css

1682 ms

styles.css

styles.css

1918 ms

magnific-popup.css

magnific-popup.css

1831 ms

style.css

style.css

1835 ms

themes.css

themes.css

1889 ms

js_composer.css

js_composer.css

4389 ms

style.css

style.css

2080 ms

frontend.css

frontend.css

2185 ms

avh-ec.widget.css

avh-ec.widget.css

2186 ms

jquery.js

jquery.js

2743 ms

jquery-ui.min.js

jquery-ui.min.js

2746 ms

jquery.js

jquery.js

2938 ms

fball_connect.js

fball_connect.js

2537 ms

jquery-migrate.min.js

jquery-migrate.min.js

2525 ms

form.js

form.js

2804 ms

usernoise.js

usernoise.js

2809 ms

editor.js

editor.js

2667 ms

confirm.min.js

confirm.min.js

3010 ms

in.js

in.js

23 ms

widgets.js

widgets.js

125 ms

widget-members.min.js

widget-members.min.js

2671 ms

jquery-query.min.js

jquery-query.min.js

2812 ms

jquery-cookie.min.js

jquery-cookie.min.js

2379 ms

jquery-scroll-to.min.js

jquery-scroll-to.min.js

2725 ms

buddypress.min.js

buddypress.min.js

2922 ms

comment-reply.min.js

comment-reply.min.js

2692 ms

jquery.form.min.js

jquery.form.min.js

2965 ms

scripts.js

scripts.js

2726 ms

cookielawinfo.js

cookielawinfo.js

2635 ms

postratings-js.js

postratings-js.js

2783 ms

bootstrap.min.js

bootstrap.min.js

2796 ms

scripts.js

scripts.js

2794 ms

modernizr.full.min.js

modernizr.full.min.js

2265 ms

style.min.css

style.min.css

2642 ms

functions.min.js

functions.min.js

2658 ms

jquery.mmenu.min.all.js

jquery.mmenu.min.all.js

2773 ms

jquery.nouislider.min.js

jquery.nouislider.min.js

2725 ms

widget.js

widget.js

2604 ms

user_calculations.js

user_calculations.js

2785 ms

jquery.validate.min.js

jquery.validate.min.js

2767 ms

additional-methods.min.js

additional-methods.min.js

2922 ms

frontend.js

frontend.js

2811 ms

wp-embed.min.js

wp-embed.min.js

2839 ms

js_composer_front.js

js_composer_front.js

2449 ms

fastclick.min.js

fastclick.min.js

2573 ms

totalpoll.min.js

totalpoll.min.js

2642 ms

analytics.js

analytics.js

91 ms

50da5fc1d54db6d74099fcf0ebd6ae21

50da5fc1d54db6d74099fcf0ebd6ae21

510 ms

zep_logo.png

zep_logo.png

488 ms

login_via_facebook.png

login_via_facebook.png

488 ms

zonnepanelen_nederland2-1200x600.jpg

zonnepanelen_nederland2-1200x600.jpg

1360 ms

649a35a44eeecd8ee9394d58b904046b-bpthumb.jpg

649a35a44eeecd8ee9394d58b904046b-bpthumb.jpg

582 ms

7a496119ac075b2c5a2b23bfb29c419c-bpthumb.png

7a496119ac075b2c5a2b23bfb29c419c-bpthumb.png

584 ms

information_thumb_invert.jpg

information_thumb_invert.jpg

656 ms

forum_thumb_invert.jpg

forum_thumb_invert.jpg

860 ms

rating_thumb_invert.jpg

rating_thumb_invert.jpg

881 ms

rating_on.gif

rating_on.gif

901 ms

rating_half.gif

rating_half.gif

919 ms

rating_off.gif

rating_off.gif

999 ms

loading.gif

loading.gif

1177 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1523 ms

widgets.js

widgets.js

122 ms

linkid.js

linkid.js

13 ms

overlay.png

overlay.png

1181 ms

rating_over.gif

rating_over.gif

410 ms

collect

collect

64 ms

collect

collect

255 ms

secureAnonymousFramework

secureAnonymousFramework

146 ms

admin-ajax.php

admin-ajax.php

1143 ms

timeline.d11f7a3b3287fb94220e8ee6d03cc772.js

timeline.d11f7a3b3287fb94220e8ee6d03cc772.js

94 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

152 ms

share

share

130 ms

sprite_connect_v14.png

sprite_connect_v14.png

106 ms

syndication

syndication

103 ms

682112166795866112

682112166795866112

156 ms

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.nl.html

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.nl.html

47 ms

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

37 ms

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

36 ms

06a7c8576b77a60e09898047129a4d60_normal.jpeg

06a7c8576b77a60e09898047129a4d60_normal.jpeg

129 ms

Cd0Tyd6W8AAOrnQ.jpg

Cd0Tyd6W8AAOrnQ.jpg

106 ms

Cd0RWqAW0AAjmgM.jpg:large

Cd0RWqAW0AAjmgM.jpg:large

103 ms

Cd0OlxQWIAAdWsn.jpg:large

Cd0OlxQWIAAdWsn.jpg:large

73 ms

Cd1v9KUW4AAcxZ3.jpg

Cd1v9KUW4AAcxZ3.jpg

72 ms

Cd0MCRQWEAEo9BH.jpg:large

Cd0MCRQWEAEo9BH.jpg:large

118 ms

Cd0LB3DWoAADc2_.jpg:large

Cd0LB3DWoAADc2_.jpg:large

158 ms

Cdv1wgjWoAAetZf.jpg:large

Cdv1wgjWoAAetZf.jpg:large

119 ms

CdvyapWWAAA2x33.jpg:large

CdvyapWWAAA2x33.jpg:large

146 ms

Cdvv76PW4AAMzuA.jpg:large

Cdvv76PW4AAMzuA.jpg:large

158 ms

CdvnBnGXEAAd4Xs.jpg

CdvnBnGXEAAd4Xs.jpg

171 ms

CdvkaPLXEAA_tTX.jpg:large

CdvkaPLXEAA_tTX.jpg:large

154 ms

CdveUA_W0AAYoul.jpg:large

CdveUA_W0AAYoul.jpg:large

171 ms

CdvcIDwWwAA3iwP.jpg:large

CdvcIDwWwAA3iwP.jpg:large

184 ms

CdvWXxHXEAIHRas.jpg:large

CdvWXxHXEAIHRas.jpg:large

201 ms

CdvQSBTXIAAGW4A.jpg:small

CdvQSBTXIAAGW4A.jpg:small

203 ms

CdvLbSWW8AAqfdB.jpg:large

CdvLbSWW8AAqfdB.jpg:large

229 ms

CdvEtMQW0AABEbg.jpg

CdvEtMQW0AABEbg.jpg

238 ms

Cdp31SeW4AAJzIO.jpg:large

Cdp31SeW4AAJzIO.jpg:large

317 ms

Cdp0PRAWoAADsqu.jpg:small

Cdp0PRAWoAADsqu.jpg:small

184 ms

jot.html

jot.html

29 ms

Accessibility Review

zelfenergieproduceren.nl accessibility score

90

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-hidden="true"] elements contain focusable descendents

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

High

Some elements have a [tabindex] value greater than 0

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

zelfenergieproduceren.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

SEO Factors

zelfenergieproduceren.nl SEO score

89

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 Zelfenergieproduceren.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 Zelfenergieproduceren.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

zelfenergieproduceren.nl

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