"Deploying a Scalable and Secure E-Commerce Site on AWS: My Step-by-Step Approach"

To deploy my e-commerce site on AWS, I'll start by setting up a VPC with both public and private subnets. My EC2 instances will handle the app layer, scaling automatically with Auto Scaling Groups, while an Application Load Balancer will manage incoming traffic. For media storage, I’ll use Amazon S3, with CloudFront as a CDN for fast global access. My database will run on Amazon RDS in a Multi-AZ setup to ensure high availability.

To secure the site, I'll set up SSL/TLS certificates with AWS Certificate Manager, add a WAF to defend against common threats, and use AWS Shield for DDoS protection. I'll configure IAM roles carefully and use Route 53 for DNS management.

For deployment, I’ll automate updates with AWS CodePipeline, and keep everything monitored via CloudWatch and CloudTrail. To optimize performance, I’ll add Amazon ElastiCache for caching and schedule regular backups. To keep costs down, I’ll use Savings Plans and monitor usage in Cost Explorer. Finally, I’ll set up cross-region replication for disaster recovery and test my recovery processes regularly. This setup will make my e-commerce site scalable, secure, and cost-effective on AWS.