Methods and apparatus to determine impressions using distributed demographic information

摘要

An example method to monitor media exposure involves receiving, at a first internet domain, a first request from a client computer, the first request indicative of access to the media at the client computer. The example method also involves determining if the client computer is known. If the client computer is not known, a response is sent from the first internet domain to the client computer, the response to instruct the client computer to send a second request to a second internet domain, the second request to be indicative of access to the media at the client computer. If the client computer is known, an impression of the media is logged.

主权项

1. A method to monitor media exposure, the method comprising:
receiving, at a first internet domain, a first request from a client computer, the first request indicative of access to the media at the client computer, and the first request including identifying information associated with the media; generating a modified value corresponding to the identifying information; determining if the client computer is known; if the client computer is not known, sending, from the first internet domain to the client computer, a response including the modified value in place of the identifying information, the response to instruct the client computer to send a second request to a second internet domain, the second request to be indicative of the access to the media at the client computer, and the modified value to be included in the second request to the second internet domain; and if the client computer is known, logging an impression of the media.