Depending on the entity that manages the domain from which the cookies are sent and processes the data obtained, two types can be distinguished:

• First-party cookies: those 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.
• Third-party cookies: those 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 the cookies.

If the cookies are installed from a computer or domain managed by the editor itself, but the information collected through them is managed by a third party, they cannot be considered first-party cookies.

There is also a second classification according to the length of time they remain stored in the client's browser, which can be:

• Session cookies: designed to collect and store data while the user accesses a web page. They are usually used to store information that is only of interest to keep for the provision of the service requested by the user on a single occasion (e.g., a list of purchased products).
• Persistent cookies: the data remains stored in the terminal and can be accessed and processed for a period defined by the person responsible for the cookie, which can range from a few minutes to several years. Finally, there is another classification with five types of cookies according to the purpose for which the data obtained is processed:
• Technical cookies: those that allow the user to navigate through a web page, platform, or application and use the different options or services that exist on it, such as, for example, controlling traffic and data communication, identifying the session, accessing restricted access parts, remembering the elements that make up an order, carrying out the purchase process of an order, making the request for registration or participation in an event, using security elements during navigation, storing content for the dissemination of videos or sound, or sharing content through social networks.
• Personalisation cookies: allow the user to access the service with some predefined general characteristics based on a series of criteria in the user's terminal, such as the language, the type of browser through which they access the service, the regional configuration from where they access the service, etc.
• Analysis cookies: allow the person responsible for them to monitor and analyse the behaviour of the users of the websites to which they are linked. The information collected through this type of cookie is used to measure the activity of the websites, application, or platform and for the elaboration of browsing profiles of the users of said sites, applications, and platforms, in order to introduce improvements based on the analysis of the usage data made by the users of the service.
• Advertising cookies: allow the management, in the most efficient way possible, of advertising spaces.
• Behavioural advertising cookies: store information on the behaviour of users obtained through the continuous observation of their browsing habits, which allows a specific profile to be developed to display advertising based on it.
• External social network cookies: are used so that visitors can interact with the content of different social platforms (Facebook, YouTube, Twitter, LinkedIn, etc.) and are generated only for the users of said social networks. The conditions of use of these cookies and the information collected are regulated by the privacy policy of the corresponding social platform.