Question

A company hosts a public marketing website behind an Application Load Balancer (ALB) in the us-east-1 Region. They own the domain example.com registered in a Route 53 public hosted zone. The web team needs users who type the bare domain https://example.com (the zone apex) to resolve directly to the ALB. They also want to avoid any additional query charges for this specific record where possible and ensure the record automatically tracks the ALB's changing IP addresses. Which Route 53 configuration meets these requirements?

Accepted Answer

Create an A record alias for example.com targeting the ALB's DNS name with 'Evaluate Target Health' enabled.

Answer

Create a CNAME record for example.com pointing to the ALB's DNS name.

Answer

Create an A record for example.com with the ALB's current static IP addresses and update them manually as they change.

Answer

Create an NS record for example.com delegating resolution to the ALB endpoint.