Your site lacks a "robots.txt" file. This file can protect private content from appearing online, save bandwidth, and lower load time on your server. A missing "robots.txt" file also generates additional errors in your apache log whenever robots request one. Read more about the robots.txt file, and how to create one for your site.

Your site lacks a sitemap file. Sitemaps can help robots index your content more thoroughly and quickly. Read more on Google's guidelines for implementing the sitemap protocol.

Your webpage has 78 'img' tags and 31 of them are missing the required 'alt' attribute.

Congratulations! Your page does not use HTML deprecated tags.

Congratulations! There are no severe JavaScript errors on your web page.

Congratulations! Your page is successfully compressed using gzip compression on your code.
Your HTML is compressed from 64.38 Kb to 9.88 Kb (85 % size savings). This helps ensure a faster loading web page and improved user experience.

Your site loading time is around 8.562 seconds and is over the average loading speed which is 5 seconds.

Your page has more than 20 http requests, which can slow down page loading. You can try reducing http requests through various methods such as using text instead of images, using css sprites, using data URIs instead of images, or combining several external files together into one.

Your site is not using expires headers for your images. An expires tag can help speed up the serving of your webpages for users that regularly visit your site and see the same images. Learn more about how to add expires headers to your images.

Congratulations! Your URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).

http://www.onf.fr and http://onf.fr/ should resolve to the same URL, but currently do not.

Congratulations! Your webpage does not include email addresses in plaintext.

Your website is not using media queries. You should consider using this technique in order to implement responsive design functionalities.

Your webpage doesn't take the advantages of HTML Microdata specifications in order to markup structured data. View Google's guide for getting started with microdata.

Your webpage does not use the noindex meta tag. This means that your webpage will be read and indexed by search engines.

Your webpage is using the canonical link tag. This tag specifies that the URL: http://www.onf.fr/@@index.html should be the preferred version of this page. The canonical tag can be useful when there are similar versions of the same content on several URLs (e.g., such as e-commerce sites where URL modifiers like sort parameters are appended to a product page's URL). Please ensure that this specification is correct, as canonical tags are often hard-coded and may not always reflect the latest changes in a site's URL structure.

Your webpage does not use the nofollow meta tag. This means that search engines will crawl all links from your webpage.

Your site lacks a "robots.txt" file. This file can protect private content from appearing online, save bandwidth, and lower load on your server. A missing "robots.txt" file also generates additional errors in your apache log whenever robots request one.

Congratulations! Your DNS server is using an SPF record. This SPF record is listed below: