Problems with configuring DNS for subdomain

Hi, all!

I’m trying to configure two sub-domains (say a.mydomain.com and b.mydomain.com), each pointing to a different app that’s deployed.

I added a CNAME for each of these subdomains in my domain registrar, pointing to their respectives at fly.dev.

If I dig a.domain.com, I can see it pointing to fly.dev. But if I try via browser, I get “This site can’t be reached”. I also tried to create a certificate using fly cert, but no success.

Both sites are available and working if I use the fly.dev url.

Is there anything I can try?

Cheers!

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