4 ms·

example.com is officially reserved in the spec for this use case. Is the .example TLD reserved as well?

bawolff 3y ago
Yes https://www.rfc-editor.org/rfc/rfc2606.html https://www.rfc-editor.org/rfc/rfc2606.html
jxf 3y ago
It is (in RFC 2606), along with .test, .invalid, and .localhost, for similar reasons [0]. https://datatracker.ietf.org/doc/html/rfc2606 https://datatracker.ietf.org/doc/html/rfc2606
Cyykratahk 3y ago
Yes, here are the reserved TLDs [0]: test example invalid localhost local localdomain domain lan home host corp 0. https://www.ietf.org/archive/id/draft-chapin-rfc2606bis-00.html#legacy https://www.ietf.org/archive/id/draft-chapin-rfc2606bis-00.h...
- Karunamon 3y ago
  Be careful, that is a decade plus old expired draft of a proposed update to RFC 2606. The current version of the standard, including 6761 which updates it, does not reserve most of those. https://datatracker.ietf.org/doc/html/rfc2606#page-2 https://datatracker.ietf.org/doc/html/rfc2606#page-2 https://datatracker.ietf.org/doc/html/rfc6761 https://datatracker.ietf.org/doc/html/rfc6761 You are probably safe using names like .lan and .corp but they are not currently protected by standard in the way example is.
  - Cyykratahk 3y ago
    Ah, that's a good point.
happimess 3y ago
It seems true, according to [0] ".test" is recommended for use in testing of current or new DNS related code. ".example" is recommended for use in documentation or as examples. ".invalid" is intended for use in online construction of domain that are sure to be invalid and which it is obvious at a are invalid. The ".localhost" TLD has traditionally been statically defined in DNS implementations as having an A record pointing to the back IP address and is reserved for such use. Any other use conflict with widely deployed code which assumes this use. [0] https://datatracker.ietf.org/doc/html/rfc2606 https://datatracker.ietf.org/doc/html/rfc2606
kibwen 3y ago
.example, .invalid, .local, .localhost, .onion, and .test are all "special use" domains. https://en.wikipedia.org/wiki/List_of_Internet_top-level_domains#Special-Use_Domains https://en.wikipedia.org/wiki/List_of_Internet_top-level_dom... "ICANN/IANA has created some Special-Use domain names which are meant for special technical purposes. ICANN/IANA owns all of the Special-Use domain names."

Yes https://www.rfc-editor.org/rfc/rfc2606.html https://www.rfc-editor.org/rfc/rfc2606.html

jxf 3y ago

It is (in RFC 2606), along with .test, .invalid, and .localhost, for similar reasons [0]. https://datatracker.ietf.org/doc/html/rfc2606 https://datatracker.ietf.org/doc/html/rfc2606

Cyykratahk 3y ago

Yes, here are the reserved TLDs [0]: test example invalid localhost local localdomain domain lan home host corp 0. https://www.ietf.org/archive/id/draft-chapin-rfc2606bis-00.html#legacy https://www.ietf.org/archive/id/draft-chapin-rfc2606bis-00.h...

Karunamon 3y ago
Be careful, that is a decade plus old expired draft of a proposed update to RFC 2606. The current version of the standard, including 6761 which updates it, does not reserve most of those. https://datatracker.ietf.org/doc/html/rfc2606#page-2 https://datatracker.ietf.org/doc/html/rfc2606#page-2 https://datatracker.ietf.org/doc/html/rfc6761 https://datatracker.ietf.org/doc/html/rfc6761 You are probably safe using names like .lan and .corp but they are not currently protected by standard in the way example is.
- Cyykratahk 3y ago
  Ah, that's a good point.

happimess 3y ago

It seems true, according to [0] ".test" is recommended for use in testing of current or new DNS related code. ".example" is recommended for use in documentation or as examples. ".invalid" is intended for use in online construction of domain that are sure to be invalid and which it is obvious at a are invalid. The ".localhost" TLD has traditionally been statically defined in DNS implementations as having an A record pointing to the back IP address and is reserved for such use. Any other use conflict with widely deployed code which assumes this use. [0] https://datatracker.ietf.org/doc/html/rfc2606 https://datatracker.ietf.org/doc/html/rfc2606

kibwen 3y ago

.example, .invalid, .local, .localhost, .onion, and .test are all "special use" domains. https://en.wikipedia.org/wiki/List_of_Internet_top-level_domains#Special-Use_Domains https://en.wikipedia.org/wiki/List_of_Internet_top-level_dom... "ICANN/IANA has created some Special-Use domain names which are meant for special technical purposes. ICANN/IANA owns all of the Special-Use domain names."