After connecting your site to AdRoll by placing the Pixel on your website, AdRoll will start capturing your visitor under Site Audiences.
Impression-based audiences are used to segment your website visitors based on a minimum numbers of web impressions served.
Use Cases
Sequential messaging
Change targeted and excluded audiences between campaigns. For example, show one message to visitors after they've been shown at least 15 impressions, and then target that segment in following campaigns.
Sequential and composite messaging
Use sequential messaging for different audiences. For example, define an audience by "at least 10 impressions," along with "/orders." Then, you can target people that have been to that URL and been shown at least 10 impressions.
Granular frequency caps
Exclude users after a certain number of impressions in campaigns.