Hallo,

dazu gibt es das schöne tool nslookup
z.b:

Name:    jeti.jeteye.com
Address:  64.71.144.27
Aliases:  27.144.71.64.in-addr.arpa

Name:    jetk.jeteye.com
Address:  64.71.144.31
Aliases:  31.144.71.64.in-addr.arpa

aha, http://jeteye.com
ohhh http://jeteye.com/jetbot.html

Bert