AWS 3-Tier Web Application — AWS architecture diagram

About This Architecture

Classic 3-tier architecture with Application Load Balancer, EC2 Auto Scaling group across two availability zones, and RDS PostgreSQL with a read replica. Includes VPC with public and private subnets.

AWS 3-Tier Web Application

AWSCurated TemplateWeb App
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Created by

February 8, 2026

Updated

September 17, 2026 at 12:46 PM

Type

architecture

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