2.7 sec in total
460 ms
2.2 sec
117 ms
Welcome to jardin-sciences.unistra.fr homepage info - get ready to check Jardin Sciences Unistra best content for France right away, or after learning these important things about jardin-sciences.unistra.fr
Le Jardin des Sciences, mis en place depuis septembre 2008 dans le prolongement de la Mission Culture Scientifique et Technique, regroupe les actions de diffusion de la culture scientifique et techniq...
Visit jardin-sciences.unistra.frWe analyzed Jardin-sciences.unistra.fr page load time and found that the first response time was 460 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
jardin-sciences.unistra.fr performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value7.0 s
6/100
25%
Value5.7 s
51/100
10%
Value80 ms
99/100
30%
Value0.166
71/100
15%
Value6.2 s
62/100
10%
460 ms
502 ms
147 ms
99 ms
263 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 75% of them (33 requests) were addressed to the original Jardin-sciences.unistra.fr, 9% (4 requests) were made to Typodun.unistra.fr and 5% (2 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (502 ms) belongs to the original domain Jardin-sciences.unistra.fr.
Page size can be reduced by 30.5 kB (12%)
256.0 kB
225.5 kB
In fact, the total size of Jardin-sciences.unistra.fr main page is 256.0 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. 35% of websites need less resources to load. Images take 142.8 kB which makes up the majority of the site volume.
Potential reduce by 23.6 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 5.2 kB, which is 18% 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 23.6 kB or 83% of the original size.
Potential reduce by 285 B
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. Jardin Sciences Unistra images are well optimized though.
Potential reduce by 4.5 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. This website has mostly compressed JavaScripts.
Potential reduce by 2.1 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. Jardin-sciences.unistra.fr needs all CSS files to be minified and compressed as it can save up to 2.1 kB or 18% of the original size.
Number of requests can be reduced by 21 (55%)
38
17
The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jardin Sciences Unistra. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
jardin-sciences.unistra.fr
460 ms
jardin-sciences.unistra.fr
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slick.min.js
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scrollup_01.js
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jquery.mousewheel-3.0.6.pack.js
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jquery.fancybox.js
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jquery.matchHeight-min.js
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effects.js
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jardin-sciences.unistra.fr accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
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
Buttons do not have an accessible name
Form elements do not have associated labels
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
jardin-sciences.unistra.fr 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
jardin-sciences.unistra.fr SEO score
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jardin-sciences.unistra.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 Jardin-sciences.unistra.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.
jardin-sciences.unistra.fr
Open Graph description is not detected on the main page of Jardin Sciences Unistra. 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: