I'm pretty sure its DNS related man..
nslookup
Default Server: ns-int.webair.com
Address: 216.130.174.254
>
www.sex-free-teen.com
Server: ns-int.webair.com
Address: 216.130.174.254
*** ns-int.webair.com can't find
www.sex-free-teen.com: Non-existent host/domain
>
www.google.com
Server: ns-int.webair.com
Address: 216.130.174.254
Non-authoritative answer:
Name:
www.l.google.com
Addresses: 72.14.207.99, 72.14.207.104
Aliases:
www.google.com
>