Are those that allow the user to navigate through a website, platform or application and the use of the different options or services that exist in it, including those that the publisher uses to enable the management and operation of the website and enable its functions and services, such as, for example, control traffic and data communication, identify the session, access parts of restricted access, remember the elements that make up an order, carry out the purchase process of an order, manage the payment, control fraud linked to the security of the service, make the application for registration or participation in an event, use security features during navigation, store content for broadcasting videos or sound, enable dynamic content or share content through social networks.