Ep 8: Prebid, Open Bidding and Amazon in one setup

One ad slot on news.example. Three auctions. One winner.

Many larger sites run three bidding paths, and they all meet inside Google Ad Manager.

Path one, Prebid. Its best bid, two eighty, arrives as a key-value and matches a line item at two eighty. Path two, Amazon Publisher Services. Its own script runs a separate auction, with its own key-values and Amazon line items, say at two fifty. Since January twenty twenty-six, Amazon also offers a Prebid adapter, in open beta, so it can bid inside Prebid instead. Path three, Open Bidding. No extra page code. Ad Manager calls these SSPs server to server, through yield groups, and Google takes a revenue share. Say one bids three ten. Ad Manager compares everything on price, including AdX, and Open Bidding wins at three ten. One watch-out. An SSP in two paths can end up bidding against itself.

Today, list your SSPs by path. If a name appears twice, ask why.

Next, read your Prebid analytics.