What are cookies? In information technology, HTTP cookies (more commonly referred to as Web cookies, tracking cookies or simply cookies) are lines of text used to perform automatic authentication, session tracking and storage of specific information regarding users who access the server, such as favorite websites or, in the case of online purchases, the contents of their "shopping carts".
In detail, they are small text strings sent by a server to a Web client (usually a browser) and then sent back from the client to the server (without being modified) every time the client accesses the same portion of the same web domain.
To customize the web page based on user preferences.
To trace the user's paths. For site management: cookies are used by those who update a site to understand how users visit, what path they take within the site. If the path leads to blind alleys, the manager can notice and can improve the navigation of the site.
Many modern browsers allow the user to decide when to accept cookies, but rejecting some cookies does not allow the use of some sites.
The settings can be customized to enable or block them always, within a certain period of stay, to filter sites based on whitelists and blacklists, and to filter cookies that are used by the same server or even from links (often advertising) to hosted sites. on different servers.
The functioning of cookies is totally dependent on the navigation browser that the user uses: the user can set the browser to allow or refuse their creation and dissemination.