[null,null,[],[[["Header bidding enables publishers to receive bids from various demand sources for a single ad slot, potentially increasing revenue."],["Protected Audience auctions utilize cross-site data to facilitate targeted advertising while prioritizing user privacy."],["In a sequential auction setup, contextual auctions (including header bidding) run first, followed by a Protected Audience auction, allowing publishers to consider bids from both."],["The winning contextual auction bid price acts as a bid floor for the Protected Audience auction, ensuring the final ad selection is revenue-optimal."],["The Publisher Ad Server ultimately decides which ad to render based on the results of both contextual and Protected Audience auctions."]]],["Publishers use header bidding to gather bids from various sources for ad slots. In a sequential setup, a header bidding library first runs a contextual auction. This is followed by a server-side contextual auction by the Publisher Ad Server, combining results from multiple sources. Finally, a Protected Audience auction occurs, leveraging cross-site data. The contextual auction's winning bid serves as a bid floor for the Protected Audience auction. If no Protected Audience bid exceeds this floor, the contextual ad is shown. Otherwise, the winning Protected Audience ad is displayed.\n"]]
