protocol

OpenRTB

OpenRTB (Real-Time Bidding) is an open industry protocol developed by the IAB Tech Lab for facilitating real-time bidding in digital advertising. It standardizes the communication between ad exchanges, supply-side platforms (SSPs), and demand-side platforms (DSPs) to enable automated, auction-based buying and selling of ad impressions. The protocol defines data formats and APIs for bid requests and responses, allowing for efficient and scalable programmatic advertising.

Also known as: Open Real-Time Bidding, IAB OpenRTB, RTB Protocol, OpenRTB Protocol, Real-Time Bidding Standard
🧊Why learn OpenRTB?

Developers should learn OpenRTB when working in ad tech, programmatic advertising, or digital media platforms to integrate real-time bidding functionality. It is essential for building or maintaining systems that handle ad auctions, such as ad servers, DSPs, or SSPs, as it ensures interoperability and reduces development complexity by providing a common standard. Use cases include implementing ad serving logic, optimizing bid strategies, or analyzing ad performance data in real-time environments.

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