Third party adserver
From DigitalJargonBuster
This is an adserver run by a media agency or advertising sales network that delivers content to a viewer whose site does not serve the advertising directly. The distinction can be important because introducing a third party creates a different relationship with the consumer – significant in issues such as the treatment of cookies by data protection issues. It can also create a risk of slower delivery of advertising assets, breakages in the delivery and other activities that may cause a discrepancy between the numbers of advertising spaces delivered in a campaign and the number of adverts delivered in practice. For guidance notes on minimising advertising server statistical discrepancies contact Digital Strategy Consulting. See also: Adserver, First party adserver