Well-Known URIs

Last Updated
Available Formats



Plain text

Registry included below

Well-Known URIs

Registration Procedure(s)
Specification Required
Mark Nottingham
Available Formats

URI Suffix Change Controller Reference Status Related Information Date Registered Date Modified
acme-challenge IETF [RFC8555, Section 8.3] permanent 2016-08-18
ashrae [ASHRAE] [http://www.bacnet.org/Addenda/Add-135-2012am-ppr3-draft-17_chair_approved.pdf] permanent 2016-01-22
assetlinks.json [Google_Inc.] [https://github.com/google/digitalassetlinks/blob/master/well-known/specification.md] permanent [https://github.com/google/digitalassetlinks/blob/master/well-known/details.md] 2015-09-28
caldav IETF [RFC6764] permanent see also [RFC4791]
carddav IETF [RFC6764] permanent see also [RFC6352]
coap IETF [RFC8323] permanent 2017-12-22
core IETF [RFC6690] permanent
csvm W3C [https://www.w3.org/TR/tabular-data-model/#default-locations-and-site-wide-location-configuration] permanent 2015-09-28
dnt [W3C_Tracking_Protection_WG] [http://www.w3.org/TR/tracking-dnt/#status-resource] permanent Includes all resources identified with the path prefix "/.well-known/dnt/" 2015-08-19
dnt-policy.txt Electronic Frontier Foundation [https://www.eff.org/dnt-policy] permanent 2015-08-19
dots IETF [RFC-ietf-dots-signal-channel-41] permanent 2020-01-16
ecips [Wei_Tang] [https://ecips.that.world/24-ECIPURI] provisional 2019-04-10
enterprise-transport-security [ETSI_TC_CYBER] [ETSI TS 103 523-3 clause] permanent 2019-05-14
est IETF [RFC7030][RFC-ietf-ace-coap-est-18] permanent 2013-08-16 2020-01-21
genid W3C [RDF 1.1 Concepts and Abstract Syntax] permanent 2012-11-15
hoba IETF [RFC7486, Section 6] permanent 2015-01-20
host-meta IETF [RFC6415] permanent The "host-meta" documents obtained from the same host using the HTTP and HTTPS protocols (using default ports) MUST be identical.
http-opportunistic IETF [RFC8164, Section 2.3] permanent 2017-03-20
host-meta.json IETF [RFC6415] permanent The "host-meta.json" documents obtained from the same host using the HTTP and HTTPS protocols (using default ports) MUST be identical.
idp-proxy IETF [RFC-ietf-rtcweb-security-arch-20] permanent 2019-07-25
jmap IETF [RFC8620, Section 2.2] permanent 2019-03-28
keybase.txt [The_Keybase_Project] [https://keybase.io/__/keybase_well_known] permanent Related information: Documentation for the Keybase [command line] and [API]. 2014-04-08
looking-glass [M._Stubbig] [RFC8522, Section 2] permanent 2018-12-07
matrix [The_Matrix.org_Foundation_C.I.C.] [https://matrix.org/docs/spec/client_server/latest.html#well-known-uri][https://matrix.org/docs/spec/server_server/latest.html#get-well-known-matrix-server] permanent 2019-04-16
mta-sts.txt IETF [RFC8461] permanent 2018-06-21
mud (deprecated) permanent 2016-11-23
nfv-oauth-server-configuration [ETSI] [ETSI GS NFV-SEC 022 V2.7.1] permanent 2019-06-26 2020-01-22
ni IETF [RFC6920] permanent
oauth-authorization-server IESG [RFC8414, Section 3] permanent 2018-03-27
openid-configuration [OpenID_Foundation_Artifact_Binding_Working_Group] [http://openid.net/specs/openid-connect-discovery-1_0.html] permanent 2013-08-27
openorg [cjg_at_ecs.soton.ac.uk] [http://opd.data.ac.uk/] permanent 2015-05-29
pki-validation [CA_Browser_Forum] [Section of version 1.3.8 of the CA/Browser Forum’s Baseline Requirements Certificate Policy for the Issuance and Management of Publicly-Trusted Certificates (“Baseline Requirements”)] permanent See also [https://cabforum.org/baseline-requirements-documents/] 2017-02-06
posh IETF [RFC7711] permanent The suffix "posh" is expected to be followed by an additional path component consisting of a service name (say, "spice") and a file extension of ".json", resulting in a full path of, for instance, "/.well-known/posh/spice.json". Registration of service names shall be requested by developers of the relevant application protocols. 2015-09-20
pvd IETF [RFC-ietf-intarea-provisioning-domains-11] permanent 2020-02-18
reload-config IETF [RFC6940] permanent
repute-template IETF [RFC7072] permanent 2013-09-30
resourcesync [NISO] [http://www.openarchives.org/rs/resourcesync] permanent 2017-05-26
stun-key IETF [RFC7635] permanent 2015-06-12
thread [Thread_Group_Inc.] [https://www.threadgroup.org/support#specifications] permanent 2018-11-29
time [Poul-Henning_Kamp] [http://phk.freebsd.dk/time/20151129/] permanent 2015-12-09
timezone IESG [RFC7808] permanent 2015-08-03
uma2-configuration [Kantara_UMA_WG] [UMA 2.0 Grant for OAuth 2.0, Section 2] permanent 2017-06-20
void W3C [http://www.w3.org/TR/void] permanent 2011-05-11
webfinger IETF [RFC7033] permanent The query to the WebFinger resource will include one or more parameters in the query string; see Section 4.1 of [RFC7033]. Resources at this location are able to return a JSON Resource Descriptor (JRD) as described in Section 4.4 of [RFC7033]. 2013-03-15 2013-09-06


ID Name Contact URI Last Updated
[ASHRAE] American Society of Heating, Refrigeration, and Air-conditioning Engineers (ASHRAE) http://www.ashrae.org 2016-01-22
[CA_Browser_Forum] CA/Browser Forum mailto:questions&cabforum.org
[cjg_at_ecs.soton.ac.uk] Christopher Gutteridge mailto:cjg&ecs.soton.ac.uk 2015-05-29
[ETSI] ETSI mailto:pnns&etsi.org 2019-06-26
[ETSI_TC_CYBER] ETSI (TC CYBER) mailto:cybersupport&etsi.org 2019-05-14
[Google_Inc.] Google Inc. mailto:well-known-statements&google.com 2015-09-28
[Kantara_UMA_WG] Kantara Initiative User-Managed Access Work Group mailto:staff&kantarainitiative.org 2017-06-29
[M._Stubbig] Markus Stubbig mailto:stubbig.ietf&gmail.com 2018-12-07
[NISO] National Information Standardization Organization (NISO) mailto:nisohq&niso.org 2017-05-26
[OpenID_Foundation_Artifact_Binding_Working_Group] OpenID Foundation Artifact Binding Working Group mailto:openid-specs-ab&lists.openid.net 2013-08-27
[Poul-Henning_Kamp] Poul-Henning Kamp mailto:phk&phk.freebsd.dk 2019-05-24
[The_Keybase_Project] The Keybase Project https://keybase.io/ 2014-04-08
[The_Matrix.org_Foundation_C.I.C.] The Matrix.org Foundation C.I.C. https://matrix.org 2019-04-16
[Thread_Group_Inc.] Thread Group, Inc. mailto:help&threadgroup.org 2018-11-29
[W3C_Tracking_Protection_WG] W3C Tracking Protection WG http://www.w3.org/2011/tracking-protection/ 2015-08-19
[Wei_Tang] Wei Tang mailto:hi&that.world 2019-04-10