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Welcome to ylandais-chemistry.info homepage info - get ready to check Y Landais Chemistry best content for France right away, or after learning these important things about ylandais-chemistry.info
The organic chemistry group of Prof. Yannick Landais is a part of the Institute of Molecular Sciences (ISM) at the University of Bordeaux (France).
Visit ylandais-chemistry.infoWe analyzed Ylandais-chemistry.info page load time and found that the first response time was 1.2 sec and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
ylandais-chemistry.info performance score
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Value8.8 s
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10%
Value23.3 s
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Value17.0 s
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Value950 ms
29/100
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Value1.71
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Value22.4 s
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Our browser made a total of 98 requests to load all elements on the main page. We found that 91% of them (89 requests) were addressed to the original Ylandais-chemistry.info, 4% (4 requests) were made to Googletagmanager.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Ylandais-chemistry.info.
Page size can be reduced by 1.8 MB (52%)
3.4 MB
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In fact, the total size of Ylandais-chemistry.info main page is 3.4 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.
Potential reduce by 88.7 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 88.7 kB or 79% of the original size.
Potential reduce by 38.4 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. Y Landais Chemistry images are well optimized though.
Potential reduce by 993.6 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 993.6 kB or 68% of the original size.
Potential reduce by 662.2 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. Ylandais-chemistry.info needs all CSS files to be minified and compressed as it can save up to 662.2 kB or 85% of the original size.
Number of requests can be reduced by 73 (83%)
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The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Y Landais Chemistry. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 47 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.
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ylandais-chemistry.info 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
button, link, and menuitem elements do not have accessible names.
[role] values are not valid
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Links do not have a discernible name
ylandais-chemistry.info best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
ylandais-chemistry.info SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ylandais-chemistry.info can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Ylandais-chemistry.info 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.
ylandais-chemistry.info
Open Graph data is detected on the main page of Y Landais Chemistry. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: