Multi-AZ three-tier e-commerce architecture leveraging Route 53 DNS, CloudFront CDN, AWS WAF, and Application Load Balancer to distribute traffic across Availability Zones. EC2 Auto Scaling Groups in private subnets handle application logic, while RDS MySQL with Multi-AZ failover and read replicas manages transactional data with encryption via AWS KMS. CloudWatch monitors all tiers end-to-end, and IAM roles with Secrets Manager enforce least-privilege access to database credentials. Fork this diagram to customize subnet ranges, instance types, or scaling policies for your e-commerce workload. The architecture demonstrates AWS best practices for fault tolerance, security, and operational visibility in production environments.