Tools & Wizards About Us
infotrafic.nantesmetropole.fr screenshot

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

infotrafic.nantesmetropole.fr

Nantes, Métropole et Ville - Site officiel | metropole.nantes.fr

Page Load Speed

1.9 sec in total

First Response

487 ms

Resources Loaded

1.3 sec

Page Rendered

125 ms

infotrafic.nantesmetropole.fr screenshot

About Website

Welcome to infotrafic.nantesmetropole.fr homepage info - get ready to check Infotrafic Nantes Metropole best content for France right away, or after learning these important things about infotrafic.nantesmetropole.fr

Découvrez le site officiel de Nantes Métropole et de la Ville de Nantes. Toutes les informations sur nos activités et services !

Visit infotrafic.nantesmetropole.fr

Key Findings

We analyzed Infotrafic.nantesmetropole.fr page load time and found that the first response time was 487 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

infotrafic.nantesmetropole.fr performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value19.0 s

0/100

25%

SI (Speed Index)

Value9.7 s

10/100

10%

TBT (Total Blocking Time)

Value1,470 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.619

10/100

15%

TTI (Time to Interactive)

Value33.8 s

0/100

10%

Network Requests Diagram

infotrafic.nantesmetropole.fr

487 ms

jquery1.8.js

230 ms

responsiveslides.css

184 ms

responsiveslides.min.js

196 ms

infocirculation.js

194 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 93% of them (28 requests) were addressed to the original Infotrafic.nantesmetropole.fr, 7% (2 requests) were made to Prof.estat.com. The less responsive or slowest element that took the longest time to load (525 ms) belongs to the original domain Infotrafic.nantesmetropole.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 82.4 kB (25%)

Content Size

328.8 kB

After Optimization

246.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Infotrafic.nantesmetropole.fr main page is 328.8 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. Only 5% of websites need less resources to load. Images take 204.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 10.3 kB

  • Original 13.6 kB
  • After minification 11.3 kB
  • After compression 3.3 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. This page needs HTML code to be minified as it can gain 2.3 kB, which is 17% 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 10.3 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 746 B

  • Original 204.2 kB
  • After minification 203.4 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. Infotrafic Nantes Metropole images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 68.4 kB

  • Original 107.3 kB
  • After minification 106.8 kB
  • After compression 38.9 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 68.4 kB or 64% of the original size.

CSS Optimization

-78%

Potential reduce by 2.9 kB

  • Original 3.7 kB
  • After minification 2.5 kB
  • After compression 799 B

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. Infotrafic.nantesmetropole.fr needs all CSS files to be minified and compressed as it can save up to 2.9 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (11%)

Requests Now

28

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Infotrafic Nantes Metropole. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

infotrafic.nantesmetropole.fr

infotrafic.nantesmetropole.fr

487 ms

jquery1.8.js

jquery1.8.js

230 ms

responsiveslides.css

responsiveslides.css

184 ms

responsiveslides.min.js

responsiveslides.min.js

196 ms

infocirculation.js

infocirculation.js

194 ms

style.css

style.css

195 ms

212012212618.js

212012212618.js

375 ms

Logo_infocirculation-2.gif

Logo_infocirculation-2.gif

95 ms

Logo_nantesmetropole.gif

Logo_nantesmetropole.gif

100 ms

5.jpg

5.jpg

278 ms

4.jpg

4.jpg

202 ms

3.jpg

3.jpg

199 ms

2.jpg

2.jpg

280 ms

1.jpg

1.jpg

430 ms

carte.png

carte.png

201 ms

covoiturage.png

covoiturage.png

297 ms

boite_vocal.png

boite_vocal.png

301 ms

panneau_information.png

panneau_information.png

299 ms

rflo.png

rflo.png

370 ms

entete.gif

entete.gif

370 ms

menu_infocarto2.gif

menu_infocarto2.gif

394 ms

menu_infotel.gif

menu_infotel.gif

397 ms

menu_infocirculation.gif

menu_infocirculation.gif

401 ms

logo_numvert.gif

logo_numvert.gif

463 ms

Logo_TAN.gif

Logo_TAN.gif

460 ms

Logo_L4.gif

Logo_L4.gif

491 ms

Logo_nge.gif

Logo_nge.gif

494 ms

nav_screen.gif

nav_screen.gif

500 ms

nav_mouse.gif

nav_mouse.gif

525 ms

212012212618

212012212618

188 ms

Accessibility Review

infotrafic.nantesmetropole.fr accessibility score

81

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-hidden="true"] elements contain focusable descendents

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

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.

Best Practices

infotrafic.nantesmetropole.fr best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

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

infotrafic.nantesmetropole.fr 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

Links do not have descriptive text

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

    ISO-8859-1

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

infotrafic.nantesmetropole.fr

Open Graph description is not detected on the main page of Infotrafic Nantes Metropole. 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: