Multi-AZ e-commerce architecture spanning two AWS regions with Route 53 DNS, CloudFront CDN, and WAF protection routing traffic through Application Load Balancers to containerized Next.js SSR and Java API services on ECS Fargate. Frontend and API tiers communicate via API Gateway, with ElastiCache Redis and Aurora MySQL providing distributed caching and relational data persistence across availability zones. Session and cart data leverage DynamoDB Global Tables for real-time synchronization, while CloudWatch, CloudTrail, Cognito, and Secrets Manager provide observability, security, and identity management at scale. Fork this diagram to customize subnet ranges, add additional regions, or adjust Fargate task sizing for your e-commerce workload. This architecture demonstrates AWS best practices for high-availability, fault-tolerant SaaS platforms handling millions of concurrent users.