Access seine-et-marne.fr. Page d'accueil | Département de Seine-et-Marne

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value34.2 s

0/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value1,140 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.151

76/100

15%

TTI (Time to Interactive)

Value34.0 s

0/100

10%

seine-et-marne.fr

369 ms

seine-et-marne.fr

605 ms

fr

907 ms

js

54 ms

matomo.js

535 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 82% of them (62 requests) were addressed to the original Seine-et-marne.fr, 4% (3 requests) were made to Fonts.googleapis.com and 4% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Seine-et-marne.fr.

Content Size

4.4 MB

After Optimization

2.5 MB

In fact, the total size of Seine-et-marne.fr main page is 4.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 981.3 kB

Original 1.4 MB
After minification 1.3 MB
After compression 400.1 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 981.3 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 320 B

Original 1.5 MB
After minification 1.5 MB

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. Seine Et Marne images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 968.3 kB

Original 1.4 MB
After minification 1.3 MB
After compression 385.9 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 968.3 kB or 72% of the original size.

CSS Optimization

-18%

Potential reduce by 28.8 kB

Original 161.3 kB
After minification 161.3 kB
After compression 132.5 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. Seine-et-marne.fr needs all CSS files to be minified and compressed as it can save up to 28.8 kB or 18% of the original size.

Requests Now

After Optimization

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seine Et Marne. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

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.

High

Buttons do not have an accessible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

N/A
Language Claimed

FR
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seine-et-marne.fr can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is French. Our system also found out that Seine-et-marne.fr 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

seine-et-marne.fr

Open Graph description is not detected on the main page of Seine Et Marne. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Page d'accueil | Département de Seine-et-Marne

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

seine-et-marne.fr

seine-et-marne.fr

fr

js

matomo.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

seine-et-marne.fr

seine-et-marne.fr

fr

js

matomo.js

css_oT4xvXyuYHsy8CWEXhMMzOicBnxNlVJT9Nwr2cBNCsA.css

css_8npbJSLb5lqkxKFicACAIvIvPIsBaJC8eUFcVVljtLA.css

logo-d77-header.png

js

analytics.js

collect

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athletisme-sport-athletes-11.jpg

tremplin77-auditions-2024-file7-magny-le-hongre-8.jpg

collect

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athletisme-sport-athletes-11.jpg

visuel_exposition_paris_olympiques_1900_1924_2024.jpg

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matomo.php

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couverture_publication_programmation_blandy_2024.jpg

couverture-publication-legende-olympique-en-seine-et-marne.jpg

capture_1.jpg

couverture-bbbutine.jpg

couverture-magazine-149.png

borchure-sde.jpg