s.tf1.fr has two IP numbers. They are on the same IP network. This hostname cnames to tf1.fr.edgesuite.net. www.psg.fr, www.tf1.fr, www.cat.com, www.ikea.se, perfs.aol.fr and at least 100 other hosts point to the same IP. tf1.fr is a domain controlled by two nameservers on different IP networks. Incoming mail for tf1.fr is handled by two mailservers at tf1.fr themselves. They are on the same IP network. tf1.fr has one IP number. s.tf1.fr is hosted on two servers in United States even though the hostname implies France.