Single-AZ web application architecture in AWS Tokyo (ap-northeast-1) using Route 53 DNS, Application Load Balancer across public subnets, EC2 t3.small instances in private app tier, RDS MySQL for data persistence, and S3 for static assets. Traffic flows from users through Route 53 and Internet Gateway to the ALB, which distributes requests to EC2 instances that query RDS and fetch objects from S3. This pattern optimizes for cost and latency in the Tokyo region while maintaining separation of concerns across public, application, and data subnets. Fork this diagram on Diagrams.so to customize instance types, add multi-AZ redundancy, or adjust CIDR blocks for your workload. Consider upgrading to multi-AZ deployment for production workloads requiring higher availability and automatic failover.