Is your domain name in the US protected internationally?
For all intents and purposes, a domain name is not contained
within a country. The Internet is international, and all DNS
servers are designed to relay the correct information globally
through a relay of trusted networks.Furthermore, the correct
operation of the Internet depends on a domain name having just one
DNS file (this file may contain multiple IP addresses and aliases,
however). Attempts to subvert the global DNS directory is known as
DNS poisoning, and is carefully guarded against by technical
measures built into bind and Active Directory. These include
trusted security keys and known DNS route maps. In this sense,
there is a global consensus towards protecting each domain name's
IP addresses and aliases, and the software and protocols of DNS are
the technical guardians of a domain name. Please note that while
your domain name is protected globally, pockets of the Internet,
notably corporate networks, may choose to filter domain names; many
do so as a means of reducing the abuse of corpotate networks for
non-business purposes.