1.6 sec in total
347 ms
1.1 sec
201 ms
Welcome to enseignement.olivierdavid.fr homepage info - get ready to check Enseignement Olivier David best content right away, or after learning these important things about enseignement.olivierdavid.fr
enseignement mathématiques physique chimie
Visit enseignement.olivierdavid.frWe analyzed Enseignement.olivierdavid.fr page load time and found that the first response time was 347 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
enseignement.olivierdavid.fr performance score
name
value
score
weighting
Value1.5 s
95/100
10%
Value3.3 s
70/100
25%
Value2.0 s
99/100
10%
Value250 ms
84/100
30%
Value0
100/100
15%
Value3.6 s
91/100
10%
347 ms
118 ms
26 ms
30 ms
29 ms
Our browser made a total of 9 requests to load all elements on the main page. We found that 44% of them (4 requests) were addressed to the original Enseignement.olivierdavid.fr, 22% (2 requests) were made to Cdn.mathjax.org and 22% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (588 ms) belongs to the original domain Enseignement.olivierdavid.fr.
Page size can be reduced by 286.7 kB (48%)
602.1 kB
315.4 kB
In fact, the total size of Enseignement.olivierdavid.fr main page is 602.1 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. 30% of websites need less resources to load. Javascripts take 261.9 kB which makes up the majority of the site volume.
Potential reduce by 10.4 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 10.4 kB or 74% of the original size.
Potential reduce by 43.2 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. Obviously, Enseignement Olivier David needs image optimization as it can save up to 43.2 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 171.2 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 171.2 kB or 65% of the original size.
Potential reduce by 61.9 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. Enseignement.olivierdavid.fr needs all CSS files to be minified and compressed as it can save up to 61.9 kB or 86% of the original size.
We found no issues to fix!
8
8
The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Enseignement Olivier David. According to our analytics all requests are already optimized.
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enseignement.olivierdavid.fr 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.
enseignement.olivierdavid.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
enseignement.olivierdavid.fr SEO score
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Enseignement.olivierdavid.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 Enseignement.olivierdavid.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.
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enseignement.olivierdavid.fr
Open Graph description is not detected on the main page of Enseignement Olivier David. 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: