Access billets.cite-sciences.fr. Billetterie de la Cité des sciences et de l'industrie

Report Summary

About Website

Visit billets.cite-sciences.fr now to see the best up-to-date Bill Et S Cite Sciences content for France and also check out these interesting facts you probably never knew about billets.cite-sciences.fr

Achetez vos billets pour nos expositions, la Cité des enfants, le lab de la Cité des bébés, nos événements, stages et ateliers etc.

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name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

18/100

25%

SI (Speed Index)

Value25.4 s

0/100

10%

TBT (Total Blocking Time)

Value22,410 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value30.0 s

0/100

10%

billetterie.cite-sciences.fr

1412 ms

social_gdpr.css

124 ms

app.css

862 ms

polyfill.min.js

285 ms

manifest.js

273 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Billets.cite-sciences.fr, 4% (1 request) were made to Polyfill.io. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Billetterie.cite-sciences.fr.

Content Size

813.6 kB

After Optimization

773.7 kB

In fact, the total size of Billets.cite-sciences.fr main page is 813.6 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. 70% of websites need less resources to load. Images take 702.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 37.6 kB

Original 48.7 kB
After minification 41.9 kB
After compression 11.1 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. This page needs HTML code to be minified as it can gain 6.8 kB, which is 14% 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 37.6 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 170 B

Original 702.7 kB
After minification 702.5 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. Bill Et S Cite Sciences images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 563 B

Original 874 B
After minification 563 B
After compression 311 B

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 563 B or 64% of the original size.

CSS Optimization

-3%

Potential reduce by 1.6 kB

Original 61.4 kB
After minification 61.2 kB
After compression 59.8 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. Billets.cite-sciences.fr has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bill Et S Cite Sciences. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

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

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

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 Billets.cite-sciences.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 Billets.cite-sciences.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

billets.cite-sciences.fr

Open Graph data is detected on the main page of Bill Et S Cite Sciences. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Billetterie de la Cité des sciences et de l'industrie | Billetterie - La cité des sciences

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)