Amazon Route 53 is a highly available and scalable Domain Name System (DNS) web service.
You can use Route 53 to perform three main functions in any combination:
Register domain names
Your website needs a name, such as example.com; Route 53 lets you register a domain name.
Route internet traffic to the resources for your domain
When a user opens a web browser and enters your domain name (example.com) or subdomain name (acme.example.com) in the address bar, Route 53 helps connect the browser with your website or web application.
Check the health of your resources
Route 53 sends automated requests over the internet to a resource, such as a web server, to verify that it's reachable, available, and functional.