Amazon Route53 is a highly available and scalable authoritative Domain
Name Service (DNS), which is responsible for routing users to internet-based applications. How does it do that? Well, Route53 works like any other DNS but on a much larger scale. It translates names such as
www.all-about-dogs.com to either an instance's IP address, such as
192.168.0.15, or even to an elastic load balancer's or Amazon S3's endpoints. But that's not all! The real power of Route53 comes with its ability to route traffic intelligently, which is achieved with the use of health checks and route-based traffic flows that route traffic based on latencies and geographies, and in a weighted round robin fashion. Recently, Route53 has also launched its very own domain registration service, using which you can register your very own custom domain names with AWS at absolutely nominal rates.
In this section, we will be exploring a few of these features along with some simple to follow examples...