Access kemkenscvinstallatieonderhoud.nl. Dé merkonafhankelijke specialist in duurzame energie

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value5,010 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value1.574

0/100

15%

TTI (Time to Interactive)

Value19.3 s

2/100

10%

kemkenscvinstallatieonderhoud.nl

373 ms

www.kemkens.nl

342 ms

www.kemkens.nl

667 ms

gtm.js

105 ms

gtm.js

152 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Kemkenscvinstallatieonderhoud.nl, 71% (67 requests) were made to Kemkens.nl and 15% (14 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Kemkens.nl.

Content Size

1.3 MB

After Optimization

1.2 MB

In fact, the total size of Kemkenscvinstallatieonderhoud.nl main page is 1.3 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. 40% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 49.4 kB

Original 59.3 kB
After minification 54.5 kB
After compression 9.9 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 49.4 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 24.9 kB

Original 1.1 MB
After minification 1.0 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. Kemkens Cvinstallatieonderhoud images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 894 B

Original 120.0 kB
After minification 120.0 kB
After compression 119.1 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

-39%

Potential reduce by 23.8 kB

Original 61.2 kB
After minification 61.1 kB
After compression 37.3 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. Kemkenscvinstallatieonderhoud.nl needs all CSS files to be minified and compressed as it can save up to 23.8 kB or 39% of the original size.

Requests Now

After Optimization

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kemkens Cvinstallatieonderhoud. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

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

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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/).

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 Kemkenscvinstallatieonderhoud.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 Kemkenscvinstallatieonderhoud.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

kemkenscvinstallatieonderhoud.nl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Dé merkonafhankelijke specialist in duurzame energie - Kemkens

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

kemkenscvinstallatieonderhoud.nl

www.kemkens.nl

www.kemkens.nl

gtm.js

gtm.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

kemkenscvinstallatieonderhoud.nl

www.kemkens.nl

www.kemkens.nl

gtm.js

gtm.js

ezast1njzw

css

css

css

sections.css

sections.custom.css

sections.lightweight.css

columns_type_5.css

columns_type_8.css

columns_type_4.css

columns_type_1.css

aggregatesmall.kemkens.css

bootstrap.min.css

awesome-bootstrap-checkbox.css

font-awesome.min.css

aggregatefooter.css

theme.css.php

effects.css

effects.css

font-awesome.min.css

magnific-popup.css

jquery-ui.min.css

cms.min.js

jquery-2.1.1.min.js

jquery-migrate-1.2.1.min.js

jquery-ui.min.js

waypoints.min.js

jquery.magnific-popup.js

sections.lightweight.js

bootstrap.min.js

all.min.js

desktop.min.js

custom.js

effects.min.js

datepicker-nl.min.js

effects.min.js

Mijn%20kemkens%20icoon%20-%20geel.svg

icon-phone.svg