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

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value5,720 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value17.3 s

4/100

10%

1111 ms

social_gdpr.css

100 ms

app.css

799 ms

polyfill.min.js

229 ms

orejime.css

403 ms

Our browser made a total of 31 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, 16% (5 requests) were made to Cite-sciences.fr and 3% (1 request) were made to Polyfill.io. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Billetterie.cite-sciences.fr.

Content Size

2.5 MB

After Optimization

1.0 MB

In fact, the total size of Billets.cite-sciences.fr main page is 2.5 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. 40% of websites need less resources to load. Javascripts take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 40.1 kB

Original 51.7 kB
After minification 44.3 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 7.4 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 40.1 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 89 B

Original 558.8 kB
After minification 558.7 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

-74%

Potential reduce by 1.1 MB

Original 1.5 MB
After minification 1.5 MB
After compression 379.9 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 1.1 MB or 74% of the original size.

CSS Optimization

-85%

Potential reduce by 337.1 kB

Original 396.2 kB
After minification 396.2 kB
After compression 59.1 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 needs all CSS files to be minified and compressed as it can save up to 337.1 kB or 85% of the original size.

Requests Now

After Optimization

The browser has sent 24 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 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.