Amazon Route 53

Amazon Route 53 is a highly available and scalable cloud Domain Name System (DNS) web service.
It is used to route end users to internet applications by translating names (like www.example.com) into numeric IP addresses (like 192.0.2.1) that computers use to connect to each other.
It is fully compliant with IPv4 and IPv6.
Connects user requests to infrastructure running in AWS and also outside of AWS.
It is also used to check the health of your resources.
Amazon Route 53 traffic flow helps you manage traffic globally through several routing types, which can be combined with DNS failover to enable various low-latency, fault-tolerant architectures.

Simple routing – Use in single-server environments.
Weighted round robin routing – Assign weights to resource record sets to specify the frequency.
Latency routing – Help improve your global applications.
Geolocation routing – Route traffic based on location of your users.
Geoproximity routing – Route traffic based on location of your resources.
Failover routing – Fail over to a backup site if your primary site becomes unreachable.
Multivalue answer routing – Respond to DNS queries with up to eight healthy records selected at random.

Multi-Region Deployment

Amazon Route 53 enables you to improve the availability of your applications that run on AWS by:

Configuring backup and failover scenarios for your own applications.
Enabling highly available multi-Region architectures on AWS.
Creating health checks to monitor the health and performance of your web applications, web servers, and other resources.