Inside an OpenRTB bid request

Your page asks for an ad. What does the buyer actually see?

A bid request. In OpenRTB, that’s one JSON message describing one ad opportunity.

Here’s one from news.example. First, imp, the impression. A three hundred by two fifty banner, floor one dollar fifty. Then site, the exact page. Device, the browser and country. User and regs carry the consent strings, what data may be used. Source holds the schain, every seller in the path. In version two point six, that’s a core field. And tmax, one hundred and twenty. Answer within one hundred and twenty milliseconds, or you’re out. The DSP reads it all, and decides whether to bid, and how much.

So, a buyer can only price what you send. Ask your SSP which fields it fills, especially page, consent and schain.

Next: buyers.json and the demand chain.