aws AWS What's New ·

AWS RTB Fabric now supports configurable Availability Zone affinity

networkingawsgaengineer
feature

AWS RTB Fabric has launched configurable Availability Zone (AZ) affinity for responder gateways, allowing users to control how partners connect. This feature enables AdTech companies to route connections either to the requester's own AZ or to any AZ spanned by the gateway. The change helps Demand-side Platforms (DSPs) and Supply-side Platforms (SSPs) utilize their infrastructure more efficiently by optimizing gateway capacity across AZs. This new capability is generally available in all AWS Regions where RTB Fabric is offered, without additional charges.

Features (1)
  • Configurable Availability Zone affinity for responder gateways

    AWS RTB Fabric now allows configuring Availability Zone (AZ) affinity for responder gateways, enabling partners to connect either within their own AZ or to any AZ the gateway spans. This feature addresses previous inefficiencies where capacity in other AZs might go unused, providing AdTech companies, DSPs, and SSPs with better infrastructure utilization.

Read the original announcement →

https://aws.amazon.com/about-aws/whats-new/2026/09/aws-rtb-fabric-configurable-availability-zone-affinity/

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