subdomain.domain.com is working but www.subdomain.domain.com is showing servers IP address could not be found.

I created A type records for subdomain . domain . com

Thank you

Regardless of your DNS, you cannot use CF with two-level-deep subdomains like www.sub.example.com without purchasing a certificate via ACM. See


If you do want to try it, you can create a DNS where the name is “www.subdomain” (and the target is the same IP as the existing non-www subdomain) and it’ll correctly create the two-level-deep DNS record.

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