to display preferences, e.g. contrast settings or font sizes.
if you have already answered to a pop-up survey on the usefulness of the content found, in order to avoid re-proposing it
In addition, some videos placed on our pages use a cookie to process statistics, anonymously, on how you arrived on the page and which videos you have seen.
It is not necessary to enable cookies for the site to work, but doing so improves navigation. You can delete or block cookies, but in this case some functions of the site may not work properly.
Information about cookies is not used to identify users and navigation data remains under our control at all times. These cookies serve exclusively for the purposes described above.