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Domain · Technical Depth

Walk me through what happens in the fraction of a second between a page loading and a display ad appearing — the bid request, the auction, and where the DSP and SSP each sit.

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When the page renders, the publisher's ad server calls the SSP, which packages an impression into a bid request — URL, ad slot size, user signals, and whatever identifier survives,…

The full answer: structure, worked example, likely follow-up.

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