go
ext1-2.server.csl.de has one IP number , which also has a corresponding reverse pointer. robotsmith.com and noisebastardz.com point to the same IP. ext1-2.server.csl.de is hosted on a server in United States even though the hostname implies Germany.

ext1-2.server.csl.de
a records
 
+ 207.44.185.10 207.44.128.0/17 AS21844 -
+ --- -
ip numbers of host
207.44.185.10
ptrs of ip numbers
ext1-2.server.csl.de
ip numbers using ptr to this host
207.44.185.10
hostnames sharing ip with a-records
noisebastardz.com
robotsmith.com