Tools & Wizards About Us
rechner.club screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

rechner.club

Rechner.Club - Nützliche Online-Rechner für den Alltag

Page Load Speed

3 sec in total

First Response

300 ms

Resources Loaded

2.4 sec

Page Rendered

288 ms

rechner.club screenshot

About Website

Visit rechner.club now to see the best up-to-date Rechner content for Germany and also check out these interesting facts you probably never knew about rechner.club

Rechnen ohne selbst zu rechnen! Nehmen Sie einfach unsere kostenlosen Online-Rechner. Entdecken Sie jetzt unsere Rechenwelten bei Rechner.Club für die schnelle Berechnung alltäglicher Dinge und darübe...

Visit rechner.club

Key Findings

We analyzed Rechner.club page load time and found that the first response time was 300 ms and then it took 2.7 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

rechner.club performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

74/100

25%

SI (Speed Index)

Value5.2 s

59/100

10%

TBT (Total Blocking Time)

Value14,730 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value23.5 s

1/100

10%

Network Requests Diagram

rechner.club

300 ms

rechner.club

389 ms

www.rechner.club

602 ms

rc.css

186 ms

rc.js

281 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 78% of them (31 requests) were addressed to the original Rechner.club, 8% (3 requests) were made to Pagead2.googlesyndication.com and 8% (3 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (694 ms) belongs to the original domain Rechner.club.

Page Optimization Overview & Recommendations

Page size can be reduced by 149.9 kB (18%)

Content Size

835.5 kB

After Optimization

685.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rechner.club main page is 835.5 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. 45% of websites need less resources to load. Images take 657.7 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 21.7 kB

  • Original 31.0 kB
  • After minification 29.9 kB
  • After compression 9.3 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. 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 21.7 kB or 70% of the original size.

Image Optimization

-10%

Potential reduce by 68.6 kB

  • Original 657.7 kB
  • After minification 589.1 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. Rechner images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 43.5 kB

  • Original 126.8 kB
  • After minification 126.8 kB
  • After compression 83.3 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 43.5 kB or 34% of the original size.

CSS Optimization

-81%

Potential reduce by 16.1 kB

  • Original 20.0 kB
  • After minification 15.8 kB
  • After compression 3.9 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. Rechner.club needs all CSS files to be minified and compressed as it can save up to 16.1 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (19%)

Requests Now

37

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rechner. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rechner.club

rechner.club

300 ms

rechner.club

rechner.club

389 ms

www.rechner.club

www.rechner.club

602 ms

rc.css

rc.css

186 ms

rc.js

rc.js

281 ms

adsbygoogle.js

adsbygoogle.js

50 ms

matomo.js

matomo.js

206 ms

haupt.png

haupt.png

156 ms

prozent-alltagsrechnen.png

prozent-alltagsrechnen.png

222 ms

zeit-datum-kalender.jpg

zeit-datum-kalender.jpg

226 ms

bauen-handwerken.jpg

bauen-handwerken.jpg

276 ms

haus-garten.jpg

haus-garten.jpg

404 ms

haushalt-wohnen.jpg

haushalt-wohnen.jpg

403 ms

auto-mobilitaet.jpg

auto-mobilitaet.jpg

403 ms

geld-finanzen.jpg

geld-finanzen.jpg

315 ms

essen-trinken.jpg

essen-trinken.jpg

318 ms

freizeit-reisen.jpg

freizeit-reisen.jpg

369 ms

basteln-handarbeit.jpg

basteln-handarbeit.jpg

410 ms

gesundheit.jpg

gesundheit.jpg

411 ms

platzhalter.jpg

platzhalter.jpg

462 ms

pflanzen-tiere.jpg

pflanzen-tiere.jpg

499 ms

rechnen-mathematik.jpg

rechnen-mathematik.jpg

596 ms

statistik-stochastik-wahrscheinlichkeit.png

statistik-stochastik-wahrscheinlichkeit.png

502 ms

internet-informatik-programmierung.png

internet-informatik-programmierung.png

597 ms

buchstaben-zahlen.png

buchstaben-zahlen.png

597 ms

physik-chemie.jpg

physik-chemie.jpg

556 ms

wetter-klima-naturphaenomene.jpg

wetter-klima-naturphaenomene.jpg

596 ms

sonne-mond-sterne.jpg

sonne-mond-sterne.jpg

599 ms

raetsel-spiele.png

raetsel-spiele.png

650 ms

sport-wettkampf.jpg

sport-wettkampf.jpg

694 ms

permanentlink-loeschen.jpg

permanentlink-loeschen.jpg

693 ms

show_ads_impl.js

show_ads_impl.js

68 ms

zrt_lookup.html

zrt_lookup.html

60 ms

cookie.js

cookie.js

51 ms

integrator.js

integrator.js

60 ms

ads

ads

666 ms

ads

ads

333 ms

matomo.php

matomo.php

545 ms

reactive_library.js

reactive_library.js

34 ms

ca-pub-5703043408726147

ca-pub-5703043408726147

76 ms

Accessibility Review

rechner.club accessibility score

68

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

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.

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

rechner.club best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Page has valid source maps

SEO Factors

rechner.club SEO score

92

Search Engine Optimization Advices

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

    DE

  • Language Claimed

    DE

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rechner.club can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Rechner.club main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

rechner.club

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