In the previous chapter, you significantly improved your infrastructure by configuring an AWS Network Load Balancer, setting up multiple target groups, adjusting security groups, and deploying a simple HTTP Streamlit application accessible through the load balancer. In this chapter, you'll build upon that infrastructure by integrating a professional domain name and SSL certificates, ensuring secure encrypted HTTPS traffic. You will learn how to purchase and configure a domain and SSL certificate, route traffic securely through your domain, and deploy an HTTPS-secured Streamlit application using Docker and Nginx.