Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

citiz.coop

Citiz : Réseau d'autopartage en France

Page Load Speed

2.2 sec in total

First Response

218 ms

Resources Loaded

1.9 sec

Page Rendered

97 ms

citiz.coop screenshot

About Website

Welcome to citiz.coop homepage info - get ready to check Citiz best content for France right away, or after learning these important things about citiz.coop

Location de voitures partagées Citiz : le premier réseau coopératif d'autopartage. Nos voitures sont en libre-service 24h/24 dans plus de quatre-vingt villes en France !

Visit citiz.coop

Key Findings

We analyzed Citiz.coop page load time and found that the first response time was 218 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

citiz.coop performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.066

97/100

15%

TTI (Time to Interactive)

Value15.4 s

7/100

10%

Network Requests Diagram

citiz.coop

218 ms

citiz.coop

825 ms

tarteaucitron.min.js

54 ms

tarteaucitron.fr.min.js

47 ms

b641f24.css

81 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 54% of them (27 requests) were addressed to the original Citiz.coop, 8% (4 requests) were made to Cdn.jsdelivr.net and 6% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (825 ms) belongs to the original domain Citiz.coop.

Page Optimization Overview & Recommendations

Page size can be reduced by 180.2 kB (24%)

Content Size

746.5 kB

After Optimization

566.3 kB

In fact, the total size of Citiz.coop main page is 746.5 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. 60% of websites need less resources to load. Javascripts take 449.0 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 32.6 kB

  • Original 39.5 kB
  • After minification 24.8 kB
  • After compression 6.9 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. This page needs HTML code to be minified as it can gain 14.7 kB, which is 37% 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 32.6 kB or 83% of the original size.

Image Optimization

-13%

Potential reduce by 25.1 kB

  • Original 188.3 kB
  • After minification 163.2 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. Obviously, Citiz needs image optimization as it can save up to 25.1 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-23%

Potential reduce by 103.8 kB

  • Original 449.0 kB
  • After minification 449.0 kB
  • After compression 345.2 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 103.8 kB or 23% of the original size.

CSS Optimization

-27%

Potential reduce by 18.6 kB

  • Original 69.6 kB
  • After minification 69.6 kB
  • After compression 51.0 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. Citiz.coop needs all CSS files to be minified and compressed as it can save up to 18.6 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (59%)

Requests Now

41

After Optimization

17

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Citiz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

citiz.coop accessibility score

73

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

ARIA IDs are not unique

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

citiz.coop best practices score

58

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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

citiz.coop SEO score

80

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

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