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I currently have the following subdomains on my Route53:

website.com => elb1

dashboard.website.com => elb1

staging.website.com => elb2

cdn.website.com => cloudfront

I'd like to add a wildcard subdomain for a new feature that would match any subdomain and point the same elb, like this:

*.website.com => elb1

I've added it and it seems to work, but now I'm wondering, how does it give priority if the user navigates to staging.website.com -- will it match *.website.com or staging.website.com first? And should I do anything differently?

John Derring
  • 87

1 Answers1

16

DNS will always match the most specific record first. In your case, the wildcard record will act as a fallthrough, catching any requests that don't match the non-wildcard records.

EEAA
  • 109,904