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Hi roychen! 👋
Great question!
While it may seem counterintuitive, a Route 53 Alias A record is indeed valid and is actually AWS’s recommended approach for this scenario.
Route 53 Alias records are a Route 53-specific feature that works differently from standard DNS — internally, Route 53 resolves the ALB’s DNS name to its current IP addresses and serves them as a standard A record to the client, making it behave like an A record externally.
As for using a CNAME, the AWS documentation explicitly states that CNAME records cannot be created at the zone apex (e.g.,
tutorialsdojo.com), which is why the Alias A record is the correct and only viable solution here.So, the answer remains Option 1: Create an A record aliased to the load balancer DNS name.
Hope that clears things up, and happy studying! 😊
Cheers,
Irene @ Tutorials Dojo
