Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

calculis.net

Calculis pour tout calculer

Page Load Speed

1 sec in total

First Response

85 ms

Resources Loaded

553 ms

Page Rendered

387 ms

calculis.net screenshot

About Website

Click here to check amazing Calculis content for France. Otherwise, check out these important facts you probably never knew about calculis.net

Calculis propose des outils de calculs sous forme de calculettes (ou de simulateurs) pour des calculs de la vie courante comme le bricolage, l'enseignement, la finance et l'argent, en ligne et sans in...

Visit calculis.net

Key Findings

We analyzed Calculis.net page load time and found that the first response time was 85 ms and then it took 940 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

calculis.net performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.3 s

100/100

25%

SI (Speed Index)

Value4.9 s

66/100

10%

TBT (Total Blocking Time)

Value3,260 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

calculis.net

85 ms

calculis.net

71 ms

main-1.css

18 ms

gpt.js

113 ms

adsbygoogle.js

214 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 86% of them (24 requests) were addressed to the original Calculis.net, 7% (2 requests) were made to Securepubads.g.doubleclick.net and 4% (1 request) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (240 ms) belongs to the original domain Calculis.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.7 kB (7%)

Content Size

337.6 kB

After Optimization

312.9 kB

In fact, the total size of Calculis.net main page is 337.6 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. 20% of websites need less resources to load. Javascripts take 162.2 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 24.1 kB

  • Original 32.8 kB
  • After minification 28.7 kB
  • After compression 8.6 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. This page needs HTML code to be minified as it can gain 4.1 kB, which is 12% 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 24.1 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 27 B

  • Original 139.6 kB
  • After minification 139.5 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. Calculis images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 81 B

  • Original 162.2 kB
  • After minification 162.2 kB
  • After compression 162.1 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

-15%

Potential reduce by 463 B

  • Original 3.0 kB
  • After minification 3.0 kB
  • After compression 2.6 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. Calculis.net needs all CSS files to be minified and compressed as it can save up to 463 B or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (15%)

Requests Now

26

After Optimization

22

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Calculis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

calculis.net accessibility score

68

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.

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

calculis.net 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

calculis.net SEO score

93

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Calculis.net can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Calculis.net 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 description is not detected on the main page of Calculis. 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: