10.3 sec in total
288 ms
9.7 sec
344 ms
Click here to check amazing Espace Sciences content for France. Otherwise, check out these important facts you probably never knew about espace-sciences.org
Expositions scientifiques, animations, planétarium, conférences, revue Sciences Ouest : l'Espace des sciences le centre de culture scientifique de Rennes, en Bretagne.
Visit espace-sciences.orgWe analyzed Espace-sciences.org page load time and found that the first response time was 288 ms and then it took 10 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
espace-sciences.org performance score
name
value
score
weighting
Value4.9 s
10/100
10%
Value30.0 s
0/100
25%
Value10.3 s
8/100
10%
Value3,950 ms
1/100
30%
Value0.971
2/100
15%
Value15.9 s
6/100
10%
288 ms
3752 ms
26 ms
94 ms
171 ms
Our browser made a total of 267 requests to load all elements on the main page. We found that 67% of them (179 requests) were addressed to the original Espace-sciences.org, 6% (17 requests) were made to Maps.googleapis.com and 5% (13 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Espace-sciences.org.
Page size can be reduced by 2.7 MB (46%)
5.8 MB
3.1 MB
In fact, the total size of Espace-sciences.org main page is 5.8 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.8 MB which makes up the majority of the site volume.
Potential reduce by 432.0 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 432.0 kB or 89% of the original size.
Potential reduce by 327.8 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. Obviously, Espace Sciences needs image optimization as it can save up to 327.8 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.1 MB
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 69% of the original size.
Potential reduce by 824.6 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. Espace-sciences.org needs all CSS files to be minified and compressed as it can save up to 824.6 kB or 87% of the original size.
Number of requests can be reduced by 122 (47%)
260
138
The browser has sent 260 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Espace 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 44 to 1 for JavaScripts and from 55 to 1 for CSS and as a result speed up the page load time.
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espace-sciences.org accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
espace-sciences.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
espace-sciences.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Espace-sciences.org 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 Espace-sciences.org 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.
espace-sciences.org
Open Graph description is not detected on the main page of Espace Sciences. 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: