Does an SSL Certificate Secure Both www.yourpersonaldomainname.com and yourpersonaldomainname.com

Does an SSL Certificate Secure Both www.yourpersonaldomainname.com and yourpersonaldomainname.com - GoDaddy Help Center, Search the GoDaddy Knowledge Base

Yes, an SSL certificate secures the common name (domain name) listed in the certificate, with or without the "WWW" prefix.

NOTE: In the case of UCC certificates or "Multiple Domain Certificates", only the primary domain name is secured both with and without www.

The Subject Alternative Names (SANs) do not receive the same treatment.

NOTE: Until renewed, certificates issued prior to December 2006 only secure the exact, fully-qualified domain entered as the common name in the Certificate Signing Request (CSR). Thus, a certificate that secures "www.yourpersonaldomainname" does not secure the "yourpersonaldomainname.com."