Cookies, depending on the time they remain activated, can be divided into session or permanent cookies:

Session and persistent cookies: In the session session, the data collected is only collected while the user is browsing the web page and is deleted when the browser is closed. In the case of persistent data, the data continues to be stored in the terminal for a certain period of time, thus facilitating the control of the chosen preferences without having to repeat certain parameters each time the website is visited.

Additionally, depending on the entity that manages them, cookies can be classified as own or third party:

Own or third party cookies: own cookies are those that are sent to the user's terminal equipment from a computer or domain managed by the editor itself and from which the service requested by the user is provided. And, third-party cookies, which are those that are sent to the user's terminal equipment from a computer or domain that is not managed by the editor, but by another entity that processes the data obtained through cookies.

As for the purpose, cookies can be:

Technical cookies / customization / analysis / advertising: technical cookies would be those that allow traffic control and data communication; those of personalization, those that allow users to access according to some of their own characteristics that are collected (browser, language, etc.). Those of analysis are those that allow the person responsible for them, the monitoring and analysis of the behavior of the users of the websites to which they are linked, collect data on the behavior of the users and allow to elaborate a user profile. Finally, advertising collects data on the management of advertising spaces.