AWS re:Invent 2025 - AWS RTB Fabric: Real-time bidding workloads with your AdTech partners (IND379)

AWS re:Invent 2025 - AWS RTB Fabric: Real-time bidding workloads with your AdTech partners

Key Challenges in the AdTech Ecosystem

• Demand and supply discovery: DSPs and SSPs need to find and connect with relevant partners
• Integration complexity: New integrations can take 3-5 months due to technical and business complexities
• Latency and collocation: Ensuring low-latency connections between partners
• Transparency and data fragmentation: Lack of visibility into bid processing and demand/supply data
• Model optimization: Challenges with ML model tuning for yield optimization and campaign performance

Introduction to AWS RTB Fabric

• A purpose-built service for real-time bidding (RTB) workloads
• Aims to address the key challenges in the AdTech ecosystem
• Provides benefits such as:
  • Rapid onboarding (hours vs weeks/months)
  • Up to 80% cost savings on cloud infrastructure and networking
  • Millisecond-level latency

RTB Fabric Architecture

RTB Gateways

• Requestor Gateway: Connects to supply-side (SSPs)
• Responder Gateway: Connects to demand-side (DSPs)
• Gateways create a network interface in the customer's VPC for low-latency connectivity

Links

• Internal Links: Secure, private connections between RTB Fabric partners in the same AWS region
• External Links: Connections between RTB Fabric and external partners (outside AWS or different regions)

Modules

• Configurable traffic management components that run inline with low latency
• Provided by AWS (e.g., rate limiter, OpenRTB filter, error masking) or custom-built
• Enhance the RTB workflow with data enrichment, identity management, etc.

Managed Endpoints

• Eliminates the need for a load balancer by querying the customer's autoscaling group or EKS cluster
• Reduces costs and maintains single-digit millisecond latency

Onboarding to RTB Fabric

1. Create Requestor and Responder Gateways
2. Establish Links between partners
3. Start routing traffic through RTB Fabric

Observability and Monitoring

• CloudWatch Logs for request-level logging (configurable sampling)
• CloudWatch Metrics for real-time performance monitoring (latency, traffic, etc.)

Cost and Performance

• Pricing based on a pay-per-million-requests model with volume-based discounts
• Includes free data payload up to 2KB per request
• Consistent single-digit millisecond latency, even at high query volumes

Customer Testimonial: ILMO

• RTB Fabric has helped ILMO:
  • Reduce timeouts and increase bid rates
  • Lower infrastructure costs
  • Drastically reduce integration times (weeks to days)
• Enables ILMO to focus on innovation and new business models rather than managing infrastructure

Key Takeaways

• RTB Fabric provides a foundational layer for efficient, low-latency RTB workloads within the AWS ecosystem
• Modular architecture with built-in and custom traffic management capabilities
• Rapid onboarding and cost savings enable AdTech platforms to scale and innovate
• Customers like ILMO have seen measurable improvements in performance, cost, and time-to-market