We all know what domain name services are; Route53 is AWS's DNS service. Route53 is a full-service domain registrar where you can purchase and manage domains directly from AWS. Regarding network services, DNS allows a way to load balance between geographic regions by service domain names in a round-robin fashion between regions. 

We need the following items before we can use DNS for load balancing: 

• An Elastic Load Balancer in each of the intended load balance regions.
• A registered domain name. We do not need Route53 as the domain registrar.
• Route53 is the DNS service for the domain.

We can then use the Route 53 latency-based routing policy with health-check in an active-active environment between the two Elastic Load Balancers.