FROM RFC 2606

  To reduce the likelihood of conflict and confusion, a few top level
  domain names are reserved for use in private testing, as examples in
  documentation, and the like.  In addition, a few second level domain
  names reserved for use as examples are documented.

Top Level Domains		Reference
-----------------		---------
         .test			[RFC2606]
      .example			[RFC2606]
      .invalid			[RFC2606]
    .localhost			[RFC2606]


Second Level Domains		Reference
--------------------		---------
     example.com		[RFC2606]
     example.net		[RFC2606]
     example.org		[RFC2606]


References
----------

[RFC2606] Eastlake, D., and A. Panitz, "Reserved Top Level DNS Names",
	  RFC 2606, June 1999.
