Abstract: Methods and apparatus to collect impressions associated with over-the-top media devices are disclosed. Example disclosed apparatus include a device identifier collector at a first server, the device identifier collector to: receive a first request initiated at a user-controlled client device, the first request including a client device identifier that identifies the user-controlled client device and an over-the-top device identifier that identifies an over-the-top device that presents media via a media presentation device, the over-the-top device different than the user-controlled client device; forward a mapping identifier and the client device identifier to a second server of a database proprietor, the mapping identifier associated with the over-the-top device identifier.

Abstract: Methods and apparatus to collect impressions associated with over-the-top media devices are disclosed. Example disclosed methods involve receiving, at a first Internet domain, a first request from a first client device, the first request including a client device identifier associated with a second client device, and associating the client device identifier with demographics at the first Internet domain, the demographics corresponding to a user of the first client device. Example disclosed methods involve receiving, at the first Internet domain, a second request from the second client device, the second request indicative of media accessed at the second client device, and storing an impression of the media at the first Internet domain by associating a media identifier obtained from the second request with the demographics based on the same client device identifier being associated with the media identifier in the second request and being associated with the demographics.

Abstract: Methods and apparatus to collect impressions associated with over-the-top media devices are disclosed. Example disclosed methods involve receiving, at a first Internet domain, a first request from a first client device, the first request including a client device identifier associated with a second client device, and associating the client device identifier with demographics at the first Internet domain, the demographics corresponding to a user of the first client device. Example disclosed methods involve receiving, at the first Internet domain, a second request from the second client device, the second request indicative of media accessed at the second client device, and storing an impression of the media at the first Internet domain by associating a media identifier obtained from the second request with the demographics based on the same client device identifier being associated with the media identifier in the second request and being associated with the demographics.