Access lille.fr. Ville de Lille

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

lille.fr

258 ms

www.lille.fr

357 ms

4bc6a3d40ab90d2d032a01297d35ef0b_all.css

341 ms

jquery-1.11.0.min.js

254 ms

mailing_list.js

391 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 95% of them (76 requests) were addressed to the original Lille.fr, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Sarbacane.com. The less responsive or slowest element that took the longest time to load (940 ms) belongs to the original domain Lille.fr.

Content Size

2.0 MB

After Optimization

1.8 MB

In fact, the total size of Lille.fr main page is 2.0 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. 65% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 153.5 kB

Original 169.7 kB
After minification 97.3 kB
After compression 16.2 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 72.5 kB, which is 43% 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 153.5 kB or 90% of the original size.

Image Optimization

-2%

Potential reduce by 31.8 kB

Original 1.8 MB
After minification 1.7 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. Lille images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 534 B

Original 25.1 kB
After minification 25.1 kB
After compression 24.6 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.

Requests Now

After Optimization

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lille. 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.

Accessibility Issues

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

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

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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

FR
Language Claimed

FR
Encoding

UTF-8

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

lille.fr

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

Ville de Lille

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

lille.fr

www.lille.fr

4bc6a3d40ab90d2d032a01297d35ef0b_all.css

jquery-1.11.0.min.js

mailing_list.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

lille.fr

www.lille.fr

4bc6a3d40ab90d2d032a01297d35ef0b_all.css

jquery-1.11.0.min.js

mailing_list.js

fb8afa7d3c3e3fd9452fd7bd293b1748.js

analytics.js

ico-flux.png

ico-fb.png

ico-twitt.png

ico-pint.png

ico-insta.png

ico-youtu.png

logo.png

monProfil.png

profils.png

quartier.png

stamp.png

fleur.png

journee-femme_actualite01_homepage.jpg

2015_0926_JS_Parade_Renaissance_GrandPlace_018.JPG-1024_actualite02_homepage.jpg

Open-Tennis_actualite02_homepage.jpg

Equipement-Stephane-Hessel_actualite02_homepage.jpg

melcity_actualite02_homepage.jpg

Figaro-divorce_actualite02_homepage.jpg

L-air-de-rien_event_homepage.jpg

open-du-nord_event_homepage.jpg

Lille-neige_event_homepage.jpg

Decouverte-de-l-architecture-et-du-patrimoine_event_homepage.jpg

Beffrois-de-l-architecture_event_homepage.jpg

Palais-des-Beaux-Arts_zoom_homepage.jpg

Lille-Neige-bleu-1.jpg

Le-defi-de-Fortunee.jpg

Le-defi-de-Fortunee.jpg

Lille-neige-2.jpg

lille-neige-3.jpg

la-patinoire-de-Lille-Neige.jpg

Lille-neige-luge.jpg

Lille-Neige-bleu-1_return_pictures_homepage.jpg

Le-defi-de-Fortunee_return_pictures_homepage.jpg

Le-defi-de-Fortunee_return_pictures_homepage.jpg

Lille-neige-2_return_pictures_homepage.jpg

mailing_list.js

collect