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Introduced 1999
TLD type Reserved top-level domain
Status Reserved to prevent confusion and conflict
Registry IANA
Sponsor None
Intended use Example top-level domain for documentation
Actual use Sometimes used in intended manner in documentation
Registration restrictions no registrations are possible
Structure as needed in example usage
Documents RFC 2606
Dispute policies None
Registry Website None

The name example is reserved by the Internet Engineering Task Force (IETF) in RFC 2606 (June 1999) as a domain name that may not be installed as a top-level domain in the Domain Name System (DNS) of the Internet.[1]

Reserved DNS names[edit]

In 1999, the Internet Engineering Task Force reserved the DNS labels example, invalid, localhost, and test so that they may not be installed into the root zone of the Domain Name System.

The reasons for reservation of these top-level domain names is to reduce the likelihood of conflict and confusion.[1] This allows the use of these names for either documentation purposes or in local testing scenarios.


The top-level domain example is explicitly intended to be used in documentation or other technical writing, when domain names are presented as examples in usage or presentation of concepts of the Domain Name System or the Internet.

See also[edit]


  1. ^ a b RFC 2606 (BCP 32), Reserved Top Level DNS Names, D. Eastlake, A. Panitz, The Internet Society (June 1999)