This is an ad serving domain for n+1 audience extension.

Open, private, and guaranteed.

Publishers package their own inventory into deals from the UI, at a fixed price or a floor, and decide who can buy them, whether named DSP seats over RTB or direct advertisers on PLUSONE. Guaranteed deals carry an impression goal and PLUSONE paces delivery to meet it. Buyers target deals from their DSP or from a PLUSONE direct campaign.