Tools & Wizards About Us
rekenmachine24.nl screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

rekenmachine24.nl

Rekenmachine - De online rekenmachine en calculatorRekenmachine24

Page Load Speed

3.7 sec in total

First Response

869 ms

Resources Loaded

2.6 sec

Page Rendered

162 ms

rekenmachine24.nl screenshot

About Website

Visit rekenmachine24.nl now to see the best up-to-date Rekenmachine 24 content for Netherlands and also check out these interesting facts you probably never knew about rekenmachine24.nl

Deze gratis online rekenmachine helpt je met het oplossen van alle sommen! Deze online calculator is geheel gratis en eenvoudig te gebruiken.

Visit rekenmachine24.nl

Key Findings

We analyzed Rekenmachine24.nl page load time and found that the first response time was 869 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

rekenmachine24.nl performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value190 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value5.4 s

71/100

10%

Network Requests Diagram

www.rekenmachine24.nl

869 ms

wp-emoji-release.min.js

91 ms

newsplus-shortcodes.css

178 ms

styles.css

182 ms

front.css

177 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 60% of them (38 requests) were addressed to the original Rekenmachine24.nl, 6% (4 requests) were made to Pagead2.googlesyndication.com and 6% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (869 ms) belongs to the original domain Rekenmachine24.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 589.2 kB (62%)

Content Size

950.3 kB

After Optimization

361.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rekenmachine24.nl main page is 950.3 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. 40% of websites need less resources to load. Javascripts take 688.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 21.8 kB

  • Original 29.4 kB
  • After minification 28.6 kB
  • After compression 7.6 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 21.8 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 2.4 kB

  • Original 126.6 kB
  • After minification 124.1 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. Rekenmachine 24 images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 476.9 kB

  • Original 688.7 kB
  • After minification 525.9 kB
  • After compression 211.8 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 476.9 kB or 69% of the original size.

CSS Optimization

-83%

Potential reduce by 88.1 kB

  • Original 105.6 kB
  • After minification 85.2 kB
  • After compression 17.5 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. Rekenmachine24.nl needs all CSS files to be minified and compressed as it can save up to 88.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (81%)

Requests Now

59

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rekenmachine 24. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.rekenmachine24.nl

www.rekenmachine24.nl

869 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

91 ms

newsplus-shortcodes.css

newsplus-shortcodes.css

178 ms

styles.css

styles.css

182 ms

front.css

front.css

177 ms

css

css

24 ms

style.css

style.css

184 ms

prettyPhoto.css

prettyPhoto.css

182 ms

user.css

user.css

183 ms

jquery.js

jquery.js

355 ms

jquery-migrate.min.js

jquery-migrate.min.js

262 ms

front.js

front.js

263 ms

adsbygoogle.js

adsbygoogle.js

6 ms

jquery.js

jquery.js

537 ms

calculatrice.js

calculatrice.js

269 ms

main.js

main.js

267 ms

style.css

style.css

348 ms

core.min.js

core.min.js

349 ms

widget.min.js

widget.min.js

383 ms

tabs.min.js

tabs.min.js

383 ms

accordion.min.js

accordion.min.js

436 ms

custom.js

custom.js

437 ms

jquery.easing.min.js

jquery.easing.min.js

442 ms

froogaloop2.min.js

froogaloop2.min.js

440 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

443 ms

jquery.form.min.js

jquery.form.min.js

524 ms

scripts.js

scripts.js

523 ms

comment-reply.min.js

comment-reply.min.js

527 ms

jquery.hoverIntent.minified.js

jquery.hoverIntent.minified.js

528 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

532 ms

custom.js

custom.js

611 ms

wp-embed.min.js

wp-embed.min.js

613 ms

analytics.js

analytics.js

9 ms

u-WUoqrET9fUeobQW7jkRaCWcynf_cDxXwCLxiixG1c.ttf

u-WUoqrET9fUeobQW7jkRaCWcynf_cDxXwCLxiixG1c.ttf

25 ms

k3k702ZOKiLJc3WVjuplzNqQynqKV_9Plp7mupa0S4g.ttf

k3k702ZOKiLJc3WVjuplzNqQynqKV_9Plp7mupa0S4g.ttf

31 ms

ca-pub-4357869565977311.js

ca-pub-4357869565977311.js

104 ms

zrt_lookup.html

zrt_lookup.html

32 ms

show_ads_impl.js

show_ads_impl.js

62 ms

collect

collect

18 ms

ads

ads

234 ms

osd.js

osd.js

15 ms

ads

ads

219 ms

ads

ads

221 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

356 ms

back.png

back.png

90 ms

sqr.png

sqr.png

89 ms

devide.png

devide.png

96 ms

multiply.png

multiply.png

91 ms

minus.png

minus.png

93 ms

plus.png

plus.png

174 ms

equal.png

equal.png

176 ms

0_z1Bt97DI.jpg

0_z1Bt97DI.jpg

133 ms

a.gif

a.gif

26 ms

bcs0

bcs0

62 ms

creative_add_on.js

creative_add_on.js

126 ms

creative_add_on.js

creative_add_on.js

124 ms

bcs0

bcs0

45 ms

0_NdQE4OBS.jpg

0_NdQE4OBS.jpg

210 ms

a.gif

a.gif

14 ms

surly.js

surly.js

130 ms

surly.js

surly.js

134 ms

ba.html

ba.html

28 ms

4.gif

4.gif

45 ms

Accessibility Review

rekenmachine24.nl accessibility score

71

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

rekenmachine24.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

SEO Factors

rekenmachine24.nl SEO score

86

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

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rekenmachine24.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 Rekenmachine24.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

rekenmachine24.nl

Open Graph description is not detected on the main page of Rekenmachine 24. 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: