Techniques: They allow the user to navigate through a web page, platform or application and use the different options or services that exist, such as, for example, traffic control and data communication, identify the session, access to restricted areas, remember the elements that make up an order, make the purchase process of an order, make the request for registration or participation in an event, use security elements during navigation, store content for the dissemination of videos or sound or share content through social networks.

Analysis: They allow the person responsible for them to monitor and analyse the users’ behaviour of the websites to which they are linked.

Advertising: They allow the management, in the most efficient way possible, of the advertising spaces that, where appropriate, the editor has included in a web page, application or platform from which it provides the requested service based on criteria such as the edited content or the frequency at which the ads are displayed.