Cookies are small text files sent by the visited websites to the user’s device (usually to the browser), where they are stored to be transmitted back to the same sites during the following visit by the same user. While browsing a website, the user’s device may also receive cookies sent by other websites or servers (so-called “third-party cookies”), which may contain some elements (for example images, maps, sound files and specific links to webpages on other domains) present on the site that the user is visiting.