Internet Assigned Numbers Authority

RDAP Extensions

Last Updated
Available Formats



Plain text

Registry included below

RDAP Extensions

Registration Procedure(s)
Specification Required
Andy Newton, Scott Hollenbeck
Available Formats

Extension Identifier Registry Operator Specification Contact Intended Usage
arin_originas0 [ARIN] [] [ARIN] COMMON
artRecord .ART [] [Gavin_Brown] COMMON
cidr0 Various RIRs under the NRO [] [ARIN] COMMON
farv1 Any [RFC9560] [IETF] This extension describes version 1 of a federated authentication method for RDAP using OAuth 2.0 and OpenID Connect.
fred [CZ.NIC_z._s._p._o.] [] [Jaromir_Talir] FRED is open source domain registry system that includes RDAP server. This RDAP server provides some extended features defined in specification.
icann_rdap_response_profile_0 ICANN [] [ICANN] COMMON
icann_rdap_response_profile_1 ICANN [] [ICANN] COMMON
icann_rdap_technical_implementation_guide_0 ICANN [] [ICANN] COMMON
icann_rdap_technical_implementation_guide_1 ICANN [] [ICANN] COMMON
nro_rdap_profile_0 Any [] [NRO] ADDRESS REGISTRIES
nro_rdap_profile_asn_flat_0 Any [] [NRO] ADDRESS REGISTRIES
nro_rdap_profile_asn_hierarchical_0 Any [] [NRO] ADDRESS REGISTRIES
paging Any [RFC8977] [IETF] This extension describes a best practice for result set paging.
platformNS Any [] [Gavin_Brown] COMMON
rdap_objectTag Any [RFC8521] [IESG] This extension describes a best practice for structuring entity identifiers to enable query bootstrapping.
redacted Any [RFC9537] [IETF] This extension identifies the redacted fields in an RDAP response.
redirect_with_content Any [] [Tom_Harrison] COMMON
regType Any [] [Gavin_Brown] COMMON
reverse_search Any [RFC9536] [IETF] This extension identifier is used for both URI path segments and response extensions related to the reverse search in RDAP.
sorting Any [RFC8977] [IETF] This extension describes a best practice for result set sorting.
subsetting Any [RFC8982] [IETF] This extension describes best practice for partial response provisioning.

Contact Information

ID Name Contact URI Last Updated
[ARIN] American Registry for Internet Numbers mailto:info& 2023-01-02
[CZ.NIC_z._s._p._o.] CZ.NIC, z. s. p. o. mailto:tech& 2016-03-30
[Gavin_Brown] Gavin Brown mailto:rdap& 2019-03-15
[ICANN] ICANN mailto:globalsupport&
[IESG] IESG mailto:iesg&
[IETF] IETF mailto:iesg&
[Jaromir_Talir] Jaromir Talir mailto:jaromir.talir& 2016-03-30
[NRO] NRO mailto:secretariat& 2021-01-27
[Tom_Harrison] Tom Harrison mailto:tomh& 2021-01-05