System for controlling user interaction via an application with remote servers

A tag delivery system for providing one or more selected tracking tags to a domain owner server for deployment on a website, the one or more tracking tags being selected from a set of available tracking tags, the system comprising:

• a tag data store for storing the set of available tracking tags, each available tracking tag including a purpose parameter describing a use to which data collected by the available tracking tag will be put;
• a selection parameter store for storing a plurality of user identifiers and a plurality of sets of tag-selection parameters, each user identifier identifying a website user and having an associated set of tag-selection parameters which identity a specific tracking tag and indicate whether a user consent has been obtained for a specific purpose of the specific tag;
• a tag request handler for receiving, from the domain owner server, a request for deployment of one or more tracking tags on the website, the request including a received user identifier identifying a user accessing the website;
• a tag selection processor configured, for a user identifier corresponding to the received user identifier, to compare the tag-selection parameters for each specific tracking tag to the purpose parameter of each corresponding available tracking tag;
• and to select available tracking tags where the purpose parameter of the available tracking tag corresponds to a specific purpose which has an indication of user consent in the corresponding tag-selection parameters;
• and
• a transmitter for transmitting the selected available tracking tags to the domain owner server for deployment on the website.