When calculating a domain name's DNP Score, because of the nature of our complex algorithm, a domain name must be registered. We check a domain name's settings, for example, that require that a domain name be registered and owned by someone (or an organization). Domain names must be 'registered' with an accredited domain name registrar in order to work, and unregistered domain names won't be reachable if you were type them into a web browser to visit them.
Keep in mind that unregistered domain names can still have problems associated with them, as they could be previously used for spam or illegal activities in the past. Even though we do not report a DNP Score for unregistered domain names, we highly recommend that you consider performing a full domain name background check before registering and using any domain name for email or for a website.