Cookies are activated and used during your navigation on this site. These are small text files, usually numbers and letters, that do not create a security risk for your computer, tablet, or smartphone.

Cookies allow you to:

  • Understand the behaviour of visitors on the different pages of the website
  • Measure visitors’ activity on the site and their frequency of return to adapt the site to the use of its visitors
  • Measure the number of visits and pages viewed

You can consult these different cookies and learn about their usefulness through the listing below.

These cookies are enabled by default on your web browser. However, you can configure your browser to alert you each time cookies are created and possibly to prevent their installation. Here is the procedure to follow on the four main browsers:

  • Chrome : http://support.google.com/chrome/bin/answer.py?hl=fr&answer=95647
  • Firefox : http://support.mozilla.org/fr/kb/activer-desactiver-cookies
  • Safari : https://support.apple.com/kb/PH21411?viewlocale=fr_FR&locale=fr_FR
  • Internet Explorer : https://support.microsoft.com/fr-fr/help/17442/windows-internet-explorer-delete-manage-cookies

Access to our site will not be denied if you disable cookies, but some features may not be available. You will find below the listing and explanations supplied directly by the above mentioned services.

1. WordPress cookies

  • wordpress_[hash] : On login, wordpress uses the wordpress_[hash] cookie to store your authentication details. Its use is limited to the admin console area, /wp-admin/
  • wordpress_logged_in_[hash] : After login, wordpress sets the wordpress_logged_in_[hash] cookie, which indicates when you’re logged in, and who you are, for most interface use.
  • wp-settings-{time}-[UID] : WordPress also sets a few wp-settings-{time}-[UID] cookies. The number on the end is your individual user ID from the users database table. This is used to customize your view of admin interface, and possibly also the main site interface.
  • wordpress_test_cookie : Tests whether or not the browser has cookies enabled.

The actual cookies contain hashed data, so you don’t have to worry about someone gleaning your username and password by reading the cookie data. A hash is the result of a specific mathematical formula applied to some input data (in this case your user name and password, respectively). It’s quite hard to reverse a hash (bordering on practical infeasibility with today’s computers). This means it is very difficult to take a hash and “unhash” it to find the original input data.

WordPress uses the two cookies to bypass the password entry portion of wp-login.php. If WordPress recognizes that you have valid, non-expired cookies, you go directly to the WordPress Administration interface. If you don’t have the cookies, or they’re expired, or in some other way invalid (like you edited them manually for some reason), WordPress will require you to log in again, in order to obtain new cookies.

2. Google Analytics cookies

  • _gat : This cookie has a ten minute timeout. This cookie does not store any user information, it’s just used to limit the number of requests that have to be made to doubleclick.net
  • _ga : This cookie has a 2 years timeout. Used to distinguish users.
  • _gid : This cookie has a 24 hours timeout. Used to distinguish users.

Google Analytics Cookie Usage on Websites : https://developers.google.com/analytics/devguides/ collection/analyticsjs/cookie-usage.

3. Polylang cookies

  • pll_language : Polylang uses a cookie to remember the language selected by the user when he comes back to visit again the website. This cookie is also used to get the language information when not available in another way. Examples are ajax requests or the login page. According to the section 3.6 of the Opinion 04/2012 on Cookie Consent Exemption, this cookie is part of the user interface customization and may be considered as requested by the user. Whether it requires the explicit consent of the user seems to depend on the expiration time or the information provided on your website. Moreover European countries have all their own law and do not apply the European directive the same way. Please check if this cookie requires an explicit user consent in your own country. This cookie stores the two letters language code of the last browsed page. The default expiration time is 1 year.

4. OVH cookies

  • 90planD et 90oplanBAK : Technical cookies used by our hosting provider to distribute the server load.

5. Other cookies

  • PHPSESSID : To identify your unique session on the website
  • cookiebar : To store if the user has hidden the cookie bar