Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 85

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

energieportal.nl

TransIP - Reserved domain

Page Load Speed

4 sec in total

First Response

260 ms

Resources Loaded

3.5 sec

Page Rendered

321 ms

energieportal.nl screenshot

About Website

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

TransIP - Reserved domain

Visit energieportal.nl

Key Findings

We analyzed Energieportal.nl page load time and found that the first response time was 260 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster. This domain responded with an error, which can significantly jeopardize Energieportal.nl rating and web reputation

Performance Metrics

energieportal.nl performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value6.5 s

40/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value9.0 s

34/100

10%

Network Requests Diagram

energieportal.nl

260 ms

www.energieportal.nl

1523 ms

analytics.js

148 ms

main.css

192 ms

lhp1vqq.js

330 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 61% of them (23 requests) were addressed to the original Energieportal.nl, 16% (6 requests) were made to and 11% (4 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Energieportal.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 323.0 kB (29%)

Content Size

1.1 MB

After Optimization

780.2 kB

In fact, the total size of Energieportal.nl main page is 1.1 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. 50% of websites need less resources to load. Images take 712.6 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 35.2 kB

  • Original 40.5 kB
  • After minification 22.8 kB
  • After compression 5.2 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 17.6 kB, which is 44% 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 35.2 kB or 87% of the original size.

Image Optimization

-4%

Potential reduce by 26.8 kB

  • Original 712.6 kB
  • After minification 685.7 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. Energieportal images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 126.8 kB

  • Original 203.2 kB
  • After minification 200.9 kB
  • After compression 76.4 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 126.8 kB or 62% of the original size.

CSS Optimization

-91%

Potential reduce by 134.1 kB

  • Original 147.0 kB
  • After minification 106.7 kB
  • After compression 12.9 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. Energieportal.nl needs all CSS files to be minified and compressed as it can save up to 134.1 kB or 91% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (31%)

Requests Now

29

After Optimization

20

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energieportal. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

energieportal.nl accessibility score

76

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

energieportal.nl best practices score

85

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

energieportal.nl SEO score

84

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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