This domain appears to have used these two bizprime servers for almost two years, however they only return a generic IP address which most likely serves that "for sale" page.

Currently, however, the domain does not point to these nameservers but to ns3.aqadvisor.com and ns4.aqadvisor.com instead. DNS glue appears to be present for these two servers, however they themselves do not consider themselves authoritative for the domain (and don't return their own names) but only refer to bizprime again.

The whole DNS setup is somewhat broken and needs fixing by the site owner.