The seller-classified channel to denominate supply in terms of web, mobile-optimized web, and mobile app impressions. Possible values are 'web', 'mobile_app', and 'mobile_web'
The country ID of the user's location. 250 is shown in cases where the country isn't known or if the country doesn't map correctly to a location in Xandr's database
The region ID of the user's location. 4291 is shown in cases where the region isn't known or if the region doesn't map correctly to a location in Xandr's database
The name of the cluster of domain, site, tag, and user country that Xandr' optimization system uses to determine bid valuations. A campaign cannot target a venue explicitly
The total number of video responses served to the player. An ad response occurs when the VAST document (XML) is served in response to a request. An ad response doesn't necessarily indicate a successful impression. For an impression, the first frame of the video must be served