Les domaines "example" en com net et org sont réservés par l'IANA :)

yannick@yop:~$ whois example.com

Whois Server Version 1.3

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.
-snip-
Domain Name: EXAMPLE.COM
Registrar: RESERVED-INTERNET ASSIGNED NUMBERS AUTHORITY
Whois Server: whois.iana.org
Referral URL: http://res-dom.iana.org
Name Server: A.IANA-SERVERS.NET
Name Server: B.IANA-SERVERS.NET
Status: REGISTRAR-LOCK
Updated Date: 26-mar-2004
Creation Date: 14-aug-1995
Expiration Date: 13-aug-2011
-snip-
Registrant:
Name: Internet Assigned Numbers Authority (IANA)
Organization: Internet Assigned Numbers Authority (IANA)
Address1: 4676 Admiralty Way, Suite 330
Address2:
Address3:
City: Marina del Rey
State/Province: CA
Country: US
Postal Code: 92092
Phone: 310-823-9358
Fax: 310-823-8649
Email: res-dom@iana.org
Registration Date: 11/01/2001
Last Updated Date: 11/01/2001
-snip-