Tools & Wizards About Us
ervolux.nl screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

ervolux.nl

EKG Kesteren Kunststof kozijnen met Keralit gevelbekleding.

Page Load Speed

2.7 sec in total

First Response

386 ms

Resources Loaded

2.2 sec

Page Rendered

117 ms

ervolux.nl screenshot

About Website

Welcome to ervolux.nl homepage info - get ready to check Ervolux best content right away, or after learning these important things about ervolux.nl

Inoutic NL Kunststof kozijnen, Brugmann AD kozijnen, Kommerling K-Vision, Keralit gevel en dakrand bekleding, Zonweringen en Rolluiken

Visit ervolux.nl

Key Findings

We analyzed Ervolux.nl page load time and found that the first response time was 386 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

ervolux.nl performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value3.8 s

83/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

ervolux.nl

386 ms

basics.css

93 ms

jquery-1.11.0.min.js

372 ms

script.js

381 ms

jquery.min.js

10 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 76% of them (22 requests) were addressed to the original Ervolux.nl, 21% (6 requests) were made to Ervolux-zonwering.nl and 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (810 ms) belongs to the original domain Ervolux.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 189.6 kB (29%)

Content Size

653.2 kB

After Optimization

463.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ervolux.nl main page is 653.2 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. Images take 565.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 8.6 kB

  • Original 11.8 kB
  • After minification 11.2 kB
  • After compression 3.2 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. 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 8.6 kB or 73% of the original size.

Image Optimization

-32%

Potential reduce by 179.4 kB

  • Original 565.6 kB
  • After minification 386.2 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, Ervolux needs image optimization as it can save up to 179.4 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

-0%

Potential reduce by 76 B

  • Original 68.9 kB
  • After minification 68.9 kB
  • After compression 68.8 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

-23%

Potential reduce by 1.6 kB

  • Original 7.0 kB
  • After minification 7.0 kB
  • After compression 5.4 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. Ervolux.nl needs all CSS files to be minified and compressed as it can save up to 1.6 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (24%)

Requests Now

25

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ervolux. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ervolux.nl

ervolux.nl

386 ms

basics.css

basics.css

93 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

372 ms

script.js

script.js

381 ms

jquery.min.js

jquery.min.js

10 ms

responsiveslides.min.js

responsiveslides.min.js

391 ms

phone.css

phone.css

93 ms

tablet1.css

tablet1.css

92 ms

tablet2.css

tablet2.css

92 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

652 ms

script.js

script.js

561 ms

responsiveslides.min.js

responsiveslides.min.js

561 ms

header.jpg

header.jpg

273 ms

bruegmann_logo.gif

bruegmann_logo.gif

93 ms

kommerling.jpg

kommerling.jpg

270 ms

Thyssen-Inoutic.jpg

Thyssen-Inoutic.jpg

279 ms

menu-logo.png

menu-logo.png

278 ms

startslide01.jpg

startslide01.jpg

389 ms

startslide02.jpg

startslide02.jpg

378 ms

startslide03.jpg

startslide03.jpg

397 ms

startslide04.jpg

startslide04.jpg

410 ms

startslide05.jpg

startslide05.jpg

443 ms

startslide06.jpg

startslide06.jpg

455 ms

startslide07.jpg

startslide07.jpg

467 ms

startslide08.jpg

startslide08.jpg

477 ms

startslide09.jpg

startslide09.jpg

487 ms

startslide10.jpg

startslide10.jpg

502 ms

actie_rolluiken.png

actie_rolluiken.png

703 ms

inzethor_actie.png

inzethor_actie.png

810 ms

Accessibility Review

ervolux.nl accessibility score

91

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

Best Practices

ervolux.nl best practices score

75

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ervolux.nl SEO score

92

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 Ervolux.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 Ervolux.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

ervolux.nl

Open Graph description is not detected on the main page of Ervolux. 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: