Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

atagverwarming.nl

Warmtepompen & CV-ketels | Kies jouw duurzame oplossing voor verwarmen en warm water | ATAG Verwarming

Page Load Speed

6 sec in total

First Response

394 ms

Resources Loaded

3.6 sec

Page Rendered

2 sec

About Website

Visit atagverwarming.nl now to see the best up-to-date ATAG Verwarming content for Netherlands and also check out these interesting facts you probably never knew about atagverwarming.nl

Op zoek naar een duurzame oplossing dat past bij jouw situatie? Ontdek de prijswinnende verwarmingsproducten uit het ATAG assortiment van ATAG Verwarming.

Visit atagverwarming.nl

Key Findings

We analyzed Atagverwarming.nl page load time and found that the first response time was 394 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

atagverwarming.nl performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value39.3 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value2,060 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.047

99/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

atagverwarming.nl

394 ms

www.atagverwarming.nl

269 ms

www.atagverwarming.nl

788 ms

jzymuqhm.js

786 ms

all.css

302 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 93% of them (42 requests) were addressed to the original Atagverwarming.nl, 2% (1 request) were made to Sst.atagverwarming.nl and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Atagverwarming.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.0 MB (5%)

Content Size

36.5 MB

After Optimization

34.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Atagverwarming.nl main page is 36.5 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. 45% of websites need less resources to load. Images take 36.2 MB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 51.9 kB

  • Original 78.1 kB
  • After minification 71.4 kB
  • After compression 26.2 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 51.9 kB or 67% of the original size.

Image Optimization

-5%

Potential reduce by 1.9 MB

  • Original 36.2 MB
  • After minification 34.3 MB

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. ATAG Verwarming images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.1 kB

  • Original 181.5 kB
  • After minification 181.5 kB
  • After compression 179.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 53.5 kB
  • After minification 53.5 kB
  • After compression 53.5 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. Atagverwarming.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (15%)

Requests Now

41

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ATAG Verwarming. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

atagverwarming.nl accessibility score

71

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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

[id] attributes on active, focusable elements are not unique

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

Links do not have a discernible name

Best Practices

atagverwarming.nl best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

atagverwarming.nl SEO score

99

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 Atagverwarming.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 Atagverwarming.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 ATAG Verwarming. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: