Tools & Wizards About Us
hanvoscvketels.nl screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 94

    SEO

    Google-friendlier than
    90% of websites

hanvoscvketels.nl

HanVos Warmtetechniek | Al 25 jaar ervaring in onderhoud en installatie van cv ketels en meer!

Page Load Speed

3.3 sec in total

First Response

232 ms

Resources Loaded

2.5 sec

Page Rendered

525 ms

hanvoscvketels.nl screenshot

About Website

Click here to check amazing Han Vos Cv Ketels content. Otherwise, check out these important facts you probably never knew about hanvoscvketels.nl

☆TIP☆ bel 078-6451351, voor het voordelig kopen, onderhouden of het repareren van uw cv-ketel, combiketel of hr-ketel

Visit hanvoscvketels.nl

Key Findings

We analyzed Hanvoscvketels.nl page load time and found that the first response time was 232 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

hanvoscvketels.nl performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value5.7 s

50/100

10%

TBT (Total Blocking Time)

Value760 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.055

98/100

15%

TTI (Time to Interactive)

Value8.1 s

41/100

10%

Network Requests Diagram

hanvoscvketels.nl

232 ms

www.hanvoscvketels.nl

513 ms

6527eb16664a4ef39a2d4512f0a48ee6296c733ed6795391ca32e5ef13e41df5c597f6eedb3e558ba858c0f49508a79a19bdebd9d3c0fb619d2041d22e106c96.css

398 ms

4d9365cd621b564261b5df4046a3860a6c71a6b156769167989574fc7597805a829814306f474aff119137658c181f3b63eb10588b50c5a5081cd62f1b859612.js

600 ms

bootstrap.min.css

410 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 78% of them (36 requests) were addressed to the original Hanvoscvketels.nl, 4% (2 requests) were made to Fonts.googleapis.com and 4% (2 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (680 ms) belongs to the original domain Hanvoscvketels.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 176.5 kB (9%)

Content Size

2.1 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hanvoscvketels.nl main page is 2.1 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. 55% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 31.6 kB

  • Original 37.9 kB
  • After minification 29.1 kB
  • After compression 6.3 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 8.9 kB, which is 23% 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 31.6 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 111.4 kB

  • Original 1.8 MB
  • After minification 1.7 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. Han Vos Cv Ketels images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 32.1 kB

  • Original 176.4 kB
  • After minification 176.4 kB
  • After compression 144.2 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 32.1 kB or 18% of the original size.

CSS Optimization

-3%

Potential reduce by 1.4 kB

  • Original 53.1 kB
  • After minification 53.1 kB
  • After compression 51.8 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. Hanvoscvketels.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (28%)

Requests Now

43

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Han Vos Cv Ketels. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

hanvoscvketels.nl

hanvoscvketels.nl

232 ms

www.hanvoscvketels.nl

www.hanvoscvketels.nl

513 ms

6527eb16664a4ef39a2d4512f0a48ee6296c733ed6795391ca32e5ef13e41df5c597f6eedb3e558ba858c0f49508a79a19bdebd9d3c0fb619d2041d22e106c96.css

6527eb16664a4ef39a2d4512f0a48ee6296c733ed6795391ca32e5ef13e41df5c597f6eedb3e558ba858c0f49508a79a19bdebd9d3c0fb619d2041d22e106c96.css

398 ms

4d9365cd621b564261b5df4046a3860a6c71a6b156769167989574fc7597805a829814306f474aff119137658c181f3b63eb10588b50c5a5081cd62f1b859612.js

4d9365cd621b564261b5df4046a3860a6c71a6b156769167989574fc7597805a829814306f474aff119137658c181f3b63eb10588b50c5a5081cd62f1b859612.js

600 ms

bootstrap.min.css

bootstrap.min.css

410 ms

font-awesome.min.css

font-awesome.min.css

308 ms

css

css

40 ms

css

css

58 ms

slick.css

slick.css

34 ms

style.css

style.css

341 ms

ketelkiezer-home.css

ketelkiezer-home.css

592 ms

bootstrap.min.js

bootstrap.min.js

674 ms

slick.min.js

slick.min.js

43 ms

scripts.js

scripts.js

680 ms

analytics.js

analytics.js

489 ms

logo.png

logo.png

31 ms

main-slider.jpg

main-slider.jpg

42 ms

slider-gradient.png

slider-gradient.png

28 ms

uneto-after.png

uneto-after.png

303 ms

techniek-nederland.png

techniek-nederland.png

30 ms

homelink-bg.png

homelink-bg.png

30 ms

pand.jpg

pand.jpg

36 ms

techniek-nederland.png

techniek-nederland.png

35 ms

InstallQ-logo-RGB.png

InstallQ-logo-RGB.png

34 ms

covrij.jpg

covrij.jpg

34 ms

skg-ikob-hanvoscvketels.png

skg-ikob-hanvoscvketels.png

69 ms

Certificaat%20FGO-861-2%20-%20definitief%20(signed).jpg

Certificaat%20FGO-861-2%20-%20definitief%20(signed).jpg

70 ms

onderhouds-contracten-bg.jpg

onderhouds-contracten-bg.jpg

72 ms

nefit-logo.png

nefit-logo.png

59 ms

intergas-logo.png

intergas-logo.png

70 ms

remeha-logo.png

remeha-logo.png

69 ms

vaillant-logo.png

vaillant-logo.png

72 ms

itho-logo.png

itho-logo.png

75 ms

awb-logo.png

awb-logo.png

72 ms

ferroli-logo.png

ferroli-logo.png

75 ms

twitter-icon.png

twitter-icon.png

77 ms

facebook-icon.png

facebook-icon.png

79 ms

google-icon.png

google-icon.png

81 ms

rss-icon.png

rss-icon.png

84 ms

techniek-nederland-wit.png

techniek-nederland-wit.png

83 ms

font

font

34 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

637 ms

font

font

57 ms

collect

collect

33 ms

collect

collect

48 ms

js

js

64 ms

Accessibility Review

hanvoscvketels.nl accessibility score

75

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

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

hanvoscvketels.nl best practices score

67

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hanvoscvketels.nl SEO score

94

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 Hanvoscvketels.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 Hanvoscvketels.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

hanvoscvketels.nl

Open Graph description is not detected on the main page of Han Vos Cv Ketels. 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: