They are those that allow the user to navigate through a web page, platform or application and the use of the different options or services that exist in it.

They are those that allow the person responsible for them to monitor and analyze the behavior of the users of the websites to which they are linked.

They are those that 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 the requested service is provided based on criteria such as the content edited or the frequency in which ads are shown.