Technical requirements checklist for DSPs

DSPs
Last Updated: February 12, 2026•

If you are a DSP looking to integrate with Index Exchange (Index), you must develop a bidding implementation based on the OpenRTB standard and make sure that you meet real-time bidding requirements. Currently, Index supports real-time bidding using the IAB's OpenRTB 2.6 Specification.

Make sure that you meet the following minimum technical requirements for receiving bid requests and sending bid responses:

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You must pass all required parameters in bid responses including Content-Length and make sure that you have seat.bid support. To learn more about required fields, see List of supported OpenRTB bid response fields for DSPs.

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You must be able to receive secure bid requests and send secure bid responses.

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You must pass a notification macro in the adm field of the bid object. For more information on how to pass a notification macro, see Win notification macro.

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You must respond to bid requests within a set time frame (usually less than 100 ms). DSPs who don't respond before this time may be subject to timeouts. DSPs who have a high volume of timeouts at any given time may be subject to throttling.