Tools & Wizards About Us

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

energieverbruiker.nl

Energievergelijker | onafhankelijk energie vergelijken

Page Load Speed

3.3 sec in total

First Response

781 ms

Resources Loaded

2.3 sec

Page Rendered

239 ms

About Website

Visit energieverbruiker.nl now to see the best up-to-date Energie Verbruiker content and also check out these interesting facts you probably never knew about energieverbruiker.nl

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Key Findings

We analyzed Energieverbruiker.nl page load time and found that the first response time was 781 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

energieverbruiker.nl performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value6.1 s

45/100

10%

TBT (Total Blocking Time)

Value1,170 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

www.energieverbruiker.nl

781 ms

jquery-ui-1.10.3.custom.min.css

167 ms

normalize.css

489 ms

boilerplate.css

413 ms

screen.css

561 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 98% of them (50 requests) were addressed to the original Energieverbruiker.nl, 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (781 ms) belongs to the original domain Energieverbruiker.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 537.8 kB (63%)

Content Size

850.7 kB

After Optimization

312.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Energieverbruiker.nl main page is 850.7 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. 35% of websites need less resources to load. Javascripts take 413.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 19.3 kB

  • Original 25.5 kB
  • After minification 22.0 kB
  • After compression 6.2 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. This page needs HTML code to be minified as it can gain 3.5 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 19.3 kB or 76% of the original size.

Image Optimization

-32%

Potential reduce by 85.2 kB

  • Original 266.6 kB
  • After minification 181.5 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, Energie Verbruiker needs image optimization as it can save up to 85.2 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 306.3 kB

  • Original 413.5 kB
  • After minification 378.2 kB
  • After compression 107.3 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 306.3 kB or 74% of the original size.

CSS Optimization

-88%

Potential reduce by 127.0 kB

  • Original 145.0 kB
  • After minification 120.9 kB
  • After compression 18.0 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. Energieverbruiker.nl needs all CSS files to be minified and compressed as it can save up to 127.0 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (34%)

Requests Now

50

After Optimization

33

  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energie Verbruiker. 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 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

energieverbruiker.nl accessibility score

86

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

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

energieverbruiker.nl best practices score

67

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

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

High

Page has valid source maps

SEO Factors

energieverbruiker.nl SEO score

90

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Energieverbruiker.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 Energieverbruiker.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 Energie Verbruiker. 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: