The need for SSL Certificates should be considered when utilizing a non-registered domain such as “.dom” or “.local”.
http://support.godaddy.com/help/article/6935/using-intranet-and-reserved-ip-addresses-as-the-primary-domain-or-subject-alternative-name-in-ssls
Using Intranet and Reserved IP Addresses as the Primary Domain or Subject Alternative Name in SSLs
The Internet security community is phasing out the use of intranet and reserved IP addresses as the Primary Domain Name or the Subject Alternative Name in SSL certificates.
This is an industry-wide decision, not one specific to our company...
As a result of this decision, on July 1, 2012, we no longer accept new requests, process rekeys or renewals, or allow any management of Subject Alternative Names for certificates that contain intranet names or reserved IP addresses, and are valid beyond November 1, 2015...