Question about Route 53 Resolver mapping

Hi There

It depends where the record is hosted.

A Route 53 Resolver automatically answers DNS queries for:

• Local VPC domain names for EC2 instances (for example, ec2-192-0-2-44.compute-1.amazonaws.com).
• Records in private hosted zones (for example, acme.example.com).
• For public domain names, Route 53 Resolver performs recursive lookups against public name servers on the internet.

For other resources like on-prem:

• Through Resolver endpoints and conditional forwarding rules, you can resolve DNS queries between your on-premises resources and VPCs to create a hybrid cloud setup over VPN or Direct Connect (DX)

See https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resolver.html