sad.okdar.net has one IP number , which is the same as for okdar.net, via cname , but the reverse is www18.pipni.cz. 109.cz, 3am.cz, mma.cz, dnk.cz, xes.cz and at least 71 other hosts point to the same IP. okdar.net is a domain controlled by two nameservers at pipni.cz. They are on different IP networks. Incoming mail for okdar.net is handled by two mailservers on different IP networks. sad.okdar.net is hosted on a server in Czech Republic.