These are those that allow the management, in the most efficient way possible, of the advertising spaces that, where appropriate, the publisher has included on a website, application or platform from which the requested service is provided, based on criteria such as the edited content or the frequency at which the advertisements are shown. Behavioural advertising cookies: these collect information on the user's preferences and personal choices (retargeting) to enable the management, in the most effective way possible, of the advertising spaces that, where appropriate, the publisher has included on a website, application or platform from which the requested service is provided.