Bid Lens

Inspect the programmatic CPM signals exposed by ads on the page.

Bid Lens helps advertising operations, publishing and monetisation teams inspect the programmatic auction signals exposed on publisher pages. It identifies: • Rendered Prebid.js winning bids • Highest visible bids and other bid responses • Google Ad Manager price-bucket targeting • Recognised programmatic advertising platforms • Ad placements detected on the page • Currency and net or gross status when exposed Bid Lens presents CPM evidence for individual placements and shows a range when comparable signals are available. It clearly distinguishes rendered winners, highest bids, general bid responses and rounded price buckets. Not every programmatic auction exposes its price to the browser. Server-side auctions, encrypted targeting, direct demand, fees and commercial adjustments may not be visible. Bid Lens reports “Not exposed” when there is insufficient evidence rather than inventing an estimate. Results should therefore be treated as directional and not as proof of the final invoiced clearing price. Bid Lens runs only when you open the extension. It scans the active page without storing your browsing history, loading remote code or sending scan results to an external service. This extension is currently in beta testing.