Are those that allow the user to navigate through a website, platform or application and use the different options or services that exist therein.

Are those that allow the person responsible for them to monitor and analyse the behaviour of users of the websites to which they are linked.

These are those that allow the management, in the most efficient way possible, of the advertising spaces that, if applicable, the publisher has included in a web page, application or platform from which it provides the requested service based on criteria such as the content edited or the frequency in which the advertisements are shown.