The Audience None report is how we identify the health of the Analytics integration with respect to Demandbase. In other words, it's how we confirm that Demandbase Data is flowing into your Analytics Solution.
Audience None essentially allows you to compare the traffic to your site to the traffic that Demandbase has identified. An audience none for Google Analytics of less than 20-30% is considered a healthy implementation while an audience none for Adobe Analytics of less than 30% is considered healthy.
Demandbase One