Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

ledomedevincennes.fr

Le Dôme de Vincennes – Centre aquatique de Vincennes

Page Load Speed

5 sec in total

First Response

1.1 sec

Resources Loaded

3.6 sec

Page Rendered

280 ms

ledomedevincennes.fr screenshot

About Website

Visit ledomedevincennes.fr now to see the best up-to-date Le Dome De Vincennes content for France and also check out these interesting facts you probably never knew about ledomedevincennes.fr

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Key Findings

We analyzed Ledomedevincennes.fr page load time and found that the first response time was 1.1 sec and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

ledomedevincennes.fr performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value16.1 s

0/100

25%

SI (Speed Index)

Value17.0 s

0/100

10%

TBT (Total Blocking Time)

Value940 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.655

8/100

15%

TTI (Time to Interactive)

Value17.3 s

4/100

10%

Network Requests Diagram

ledomedevincennes.fr

1074 ms

wp-emoji-release.min.js

246 ms

jquery.bxslider.css

168 ms

tweet_slide_style.css

170 ms

css

23 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 38% of them (35 requests) were addressed to the original Ledomedevincennes.fr, 34% (31 requests) were made to Maps.google.com and 10% (9 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 Ledomedevincennes.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (43%)

Content Size

2.7 MB

After Optimization

1.5 MB

In fact, the total size of Ledomedevincennes.fr main page is 2.7 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 59.7 kB

  • Original 71.0 kB
  • After minification 68.5 kB
  • After compression 11.4 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 59.7 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 31.0 kB

  • Original 1.2 MB
  • After minification 1.2 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. Le Dome De Vincennes images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 644.7 kB

  • Original 923.3 kB
  • After minification 880.8 kB
  • After compression 278.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 644.7 kB or 70% of the original size.

CSS Optimization

-89%

Potential reduce by 410.2 kB

  • Original 462.1 kB
  • After minification 406.8 kB
  • After compression 51.9 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. Ledomedevincennes.fr needs all CSS files to be minified and compressed as it can save up to 410.2 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (43%)

Requests Now

79

After Optimization

45

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Le Dome De Vincennes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ledomedevincennes.fr accessibility score

69

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

ledomedevincennes.fr best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

ledomedevincennes.fr SEO score

76

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Ledomedevincennes.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 Ledomedevincennes.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

Open Graph description is not detected on the main page of Le Dome De Vincennes. 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: