Tools & Wizards About Us
aterno.be screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

aterno.be

Chauffage économique & Radiateur électrique à inertie | Aterno

Page Load Speed

2.4 sec in total

First Response

307 ms

Resources Loaded

1.9 sec

Page Rendered

155 ms

aterno.be screenshot

About Website

Click here to check amazing Aterno content for Belgium. Otherwise, check out these important facts you probably never knew about aterno.be

Chauffage économique, performant & compact. Fabricant de radiateurs électriques à inertie au thermostat certifié EU.BAC. Installation rapide & sur mesure.

Visit aterno.be

Key Findings

We analyzed Aterno.be page load time and found that the first response time was 307 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

aterno.be performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value10.3 s

0/100

25%

SI (Speed Index)

Value9.0 s

15/100

10%

TBT (Total Blocking Time)

Value3,060 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.226

55/100

15%

TTI (Time to Interactive)

Value17.0 s

4/100

10%

Network Requests Diagram

aterno.be

307 ms

www.aterno.be

1118 ms

wp-emoji-release.min.js

89 ms

style-portail.css

173 ms

j.php

20 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 40% of them (8 requests) were addressed to the original Aterno.be, 15% (3 requests) were made to Stats.g.doubleclick.net and 10% (2 requests) were made to Dev.visualwebsiteoptimizer.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Aterno.be.

Page Optimization Overview & Recommendations

Page size can be reduced by 171.9 kB (58%)

Content Size

298.8 kB

After Optimization

126.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Aterno.be main page is 298.8 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. 20% of websites need less resources to load. Javascripts take 227.9 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 7.5 kB

  • Original 11.6 kB
  • After minification 11.2 kB
  • After compression 4.1 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 7.5 kB or 65% of the original size.

Image Optimization

-2%

Potential reduce by 831 B

  • Original 55.1 kB
  • After minification 54.2 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. Aterno images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 160.9 kB

  • Original 227.9 kB
  • After minification 227.8 kB
  • After compression 67.0 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 160.9 kB or 71% of the original size.

CSS Optimization

-63%

Potential reduce by 2.7 kB

  • Original 4.3 kB
  • After minification 4.3 kB
  • After compression 1.6 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. Aterno.be needs all CSS files to be minified and compressed as it can save up to 2.7 kB or 63% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (41%)

Requests Now

17

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aterno. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

aterno.be

aterno.be

307 ms

www.aterno.be

www.aterno.be

1118 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

89 ms

style-portail.css

style-portail.css

173 ms

j.php

j.php

20 ms

gtm.js

gtm.js

85 ms

logo-aterno.gif

logo-aterno.gif

100 ms

salon-aterno.jpg

salon-aterno.jpg

274 ms

labels-normes-garanties-fr.jpg

labels-normes-garanties-fr.jpg

187 ms

v.gif

v.gif

5 ms

klavikabasic-medium-webfont.woff

klavikabasic-medium-webfont.woff

225 ms

dc.js

dc.js

46 ms

conversion_async.js

conversion_async.js

18 ms

hotjar-102419.js

hotjar-102419.js

135 ms

48 ms

inpage_linkid.js

inpage_linkid.js

25 ms

50 ms

__utm.gif

__utm.gif

13 ms

modules-41154dcc2471ae5ffaca14bb84e00edb.js

modules-41154dcc2471ae5ffaca14bb84e00edb.js

25 ms

__utm.gif

__utm.gif

13 ms

Accessibility Review

aterno.be accessibility score

78

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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 IDs are not unique

Best Practices

aterno.be 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

High

Page has valid source maps

SEO Factors

aterno.be SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aterno.be can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Aterno.be 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

aterno.be

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