Lambda@Edge

CloudFront Multi-Region Origin Routing Trade-offs | SAP-C02

29 January 2026·1560 words·8 mins

Architecture Drills AWS SAP-C02 FinOps Decision Matrix CloudFront Lambda@Edge S3 CRR Multi-Region

A weather analytics SaaS expands from Europe to North America and faces regional latency issues despite using CloudFront. This drill explores the correct architecture pattern combining S3 Cross-Region Replication with Lambda@Edge origin routing—and why Global Accelerator and S3 Transfer Acceleration are costly distractors.

Domain Redirects—Cost vs Operability | SAP-C02

2 January 2026·799 words·4 mins

Architecture Drills Cloud Provider (AWS) AWS SAP-C02 FinOps Decision Matrix Route 53 Lambda@Edge

A digital marketing firm must build an efficient, scalable domain redirection service with multiple domain names, minimizing ops overhead while supporting HTTP and HTTPS. This drill clarifies the best design pattern and FinOps considerations.

CloudFront Header Rewrite Trade-offs | SAP-C02

15 December 2025·1517 words·8 mins

Architecture Drills AWS SAP-C02 FinOps Decision Matrix CloudFront Lambda@Edge CloudFront Functions API Gateway Serverless Edge Computing

How to architect serverless metadata delivery for legacy IoT devices: CloudFront Functions vs Lambda@Edge vs API Gateway - a FinOps and performance trade-off analysis for AWS SAP-C02.