Tools & Wizards About Us

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

welkombijnefit.nl

Welkom bij nefit-bosch.nl | Nefit Bosch

Page Load Speed

3.6 sec in total

First Response

300 ms

Resources Loaded

2.6 sec

Page Rendered

714 ms

About Website

Click here to check amazing Welkom Bij Nefit content for Netherlands. Otherwise, check out these important facts you probably never knew about welkombijnefit.nl

Nefit Bosch heeft voor iedereen een passende, betaalbare, duurzame, energiebesparende oplossing; HR-ketels, warmtepompen, zonne-energie, ...

Visit welkombijnefit.nl

Key Findings

We analyzed Welkombijnefit.nl page load time and found that the first response time was 300 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

welkombijnefit.nl performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value1,760 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

welkombijnefit.nl

300 ms

nefit-bosch.nl

457 ms

www.nefit-bosch.nl

197 ms

leaflet.css

70 ms

310131012b.js

74 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Welkombijnefit.nl, 45% (27 requests) were made to S3.eu-west-1.amazonaws.com and 18% (11 requests) were made to Nefit-bosch.nl. The less responsive or slowest element that took the longest time to load (816 ms) relates to the external source S3.eu-west-1.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (35%)

Content Size

6.4 MB

After Optimization

4.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Welkombijnefit.nl main page is 6.4 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. Only a small number of websites need less resources to load. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-95%

Potential reduce by 607.7 kB

  • Original 641.4 kB
  • After minification 358.5 kB
  • After compression 33.7 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 282.9 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 607.7 kB or 95% of the original size.

Image Optimization

-15%

Potential reduce by 620.9 kB

  • Original 4.1 MB
  • After minification 3.5 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. Obviously, Welkom Bij Nefit needs image optimization as it can save up to 620.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 95.4 kB

  • Original 660.9 kB
  • After minification 660.9 kB
  • After compression 565.5 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 95.4 kB or 14% of the original size.

CSS Optimization

-94%

Potential reduce by 906.7 kB

  • Original 966.4 kB
  • After minification 59.7 kB
  • After compression 59.7 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. Welkombijnefit.nl needs all CSS files to be minified and compressed as it can save up to 906.7 kB or 94% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (21%)

Requests Now

52

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Welkom Bij Nefit. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

welkombijnefit.nl accessibility score

59

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 are not valid or misspelled

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

welkombijnefit.nl 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

Missing source maps for large first-party JavaScript

SEO Factors

welkombijnefit.nl SEO score

93

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

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 Welkombijnefit.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 Welkombijnefit.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 Welkom Bij Nefit. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: