{"page":"/blog/demand-path-optimization","modified":"2026-11-10","license":"https://creativecommons.org/licenses/by/4.0/","columns":["Metric","Formula","Data source","What it tells you"],"rows":[["Bid density","Bids received ÷ auctions the path joined","Wrapper bid events","How much demand the path brings"],["Unique bid share","Auctions where only this path bid ÷ auctions it joined","Wrapper bid events, joined by auction","Demand you lose if you cut it"],["Win rate","Impressions won ÷ bids received","Ad server and wrapper win events","Whether its bids are competitive"],["Net eCPM","Publisher revenue ÷ impressions won × 1,000","SSP payments, ad server","Price after the path's fees"],["Take rate","(Buyer spend − publisher revenue) ÷ buyer spend","Log-level data from the buyer, or SSP fee terms","Share of each dollar kept by the path"],["Duplicate rate","Requests sharing an auction ID with another path ÷ requests","Bid request logs","Self-competition and wasted QPS"],["Timeout rate","Bids arriving after the wrapper timeout ÷ bids","Wrapper events","Latency cost of keeping the path"]],"sourceUrls":[[],[],[],[],[],[],[]]}