Tools & Wizards About Us

Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

palais-decouverte.fr

Palais de la découverte - Accueil - Musée parisien des sciences depuis 1937

Page Load Speed

4.2 sec in total

First Response

403 ms

Resources Loaded

3.4 sec

Page Rendered

394 ms

About Website

Visit palais-decouverte.fr now to see the best up-to-date Palais De Couverte content for France and also check out these interesting facts you probably never knew about palais-decouverte.fr

Venez partager le plaisir des sciences grâce aux expériences extraordinaires présentées par des médiateurs scientifiques passionnés et passionnants.

Visit palais-decouverte.fr

Key Findings

We analyzed Palais-decouverte.fr page load time and found that the first response time was 403 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

palais-decouverte.fr performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value7.3 s

28/100

10%

TBT (Total Blocking Time)

Value640 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

accueil

403 ms

merged-c48c655581ad02bbfdd9765fcdeb0f5a-5d75d794ea2619b86f13c518d97c460e.1713876204.css

192 ms

merged-b7d9cf0c66450c95798ad89212279b2a-4e49650510b57e123ed35150f42492b0.1707296486.css

274 ms

merged-ae54b0ae09281abac2160172f3aa9526-d0583a6900521c11040479c4c22bef62.1712838904.js

666 ms

kameleoon.js

439 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 54% of them (15 requests) were addressed to the original Palais-decouverte.fr, 14% (4 requests) were made to Analytics-eu.clickdimensions.com and 14% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (666 ms) belongs to the original domain Palais-decouverte.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 97.5 kB (19%)

Content Size

507.5 kB

After Optimization

410.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Palais-decouverte.fr main page is 507.5 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. 55% of websites need less resources to load. Images take 397.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 52.4 kB

  • Original 63.9 kB
  • After minification 51.4 kB
  • After compression 11.5 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 12.4 kB, which is 19% 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 52.4 kB or 82% of the original size.

Image Optimization

-4%

Potential reduce by 15.3 kB

  • Original 397.4 kB
  • After minification 382.2 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. Palais De Couverte images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 29.9 kB

  • Original 46.2 kB
  • After minification 44.9 kB
  • After compression 16.3 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 29.9 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (50%)

Requests Now

22

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Palais De Couverte. 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 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

palais-decouverte.fr accessibility score

92

Accessibility Issues

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

palais-decouverte.fr best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

palais-decouverte.fr SEO score

100

Search Engine Optimization Advices

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Palais-decouverte.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 Palais-decouverte.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 data is detected on the main page of Palais De Couverte. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: