per.dfc.dk has one IP number , via cname to ghs.google.com. foval.com, ns.otc.ro, mail.fz.se, mail.rt.to, mrports.com and at least 100 other hosts point to the same IP. dfc.dk is a domain controlled by five nameservers at gratisdns.dk. All of them are on different IP networks. Incoming mail for dfc.dk is handled by two mailservers on different IP networks. per.dfc.dk is hosted on a server in United States even though the hostname implies Denmark.