Well-Known URIs
- Created
- 2010-01-20
- Last Updated
- 2025-05-01
- Available Formats
-
XML
HTML
Plain text
Registry Included Below
Well-Known URIs
- Registration Procedure(s)
-
Specification Required
- Expert(s)
-
Mark Nottingham
- Reference
- [RFC8615]
- Note
-
New link relations, along with changes to existing relations, can be requested using the [registry interface] or the mailing list defined in [RFC8615]. - Available Formats
-
CSV
| URI Suffix | Reference | Status | Change Controller | Related Information | Date Registered | Date Modified |
|---|---|---|---|---|---|---|
| acme-challenge | [RFC8555, Section 8.3] | permanent | IETF | 2016-08-18 | ||
| amphtml | [https://developers.google.com/amp/cache/update-cache] | provisional | AMP Project (OpenJS Foundation) | 2020-07-06 | ||
| api-catalog | [RFC-ietf-httpapi-api-catalog-08] | permanent | IETF | 2024-12-23 | ||
| appspecific | [https://github.com/Vroo/well-known-uri-appspecific/blob/main/well-known-uri-for-application-specific-purposes.txt] | provisional | [Bruce_Leban] | 2021-06-01 | ||
| ashrae | [http://www.bacnet.org/Addenda/Add-135-2012am-ppr3-draft-17_chair_approved.pdf] | permanent | [ASHRAE] | 2016-01-22 | ||
| assetlinks.json | [https://github.com/google/digitalassetlinks/blob/master/well-known/specification.md] | permanent | [Google_Inc.] | [https://github.com/google/digitalassetlinks/blob/master/well-known/details.md] | 2015-09-28 | |
| broadband-labels | [https://www.bitag.org/BITAG-BB-Labels.pdf] | provisional | [BITAG] | 2024-08-30 | ||
| brski | [RFC8995] | permanent | IETF | BRSKI has a registry at [https://www.iana.org/assignments/brski-parameters/brski-parameters.xhtml#brski-well-known-uris] | 2020-10-09 | |
| caldav | [RFC6764] | permanent | IETF | see also [RFC4791] | ||
| carddav | [RFC6764] | permanent | IETF | see also [RFC6352] | ||
| change-password | [https://w3c.github.io/webappsec-change-password-url/#the-change-password-well-known-uri] | provisional | W3C | 2023-03-13 | ||
| cmp | [RFC-ietf-lamps-rfc6712bis-10][RFC9482] | permanent | IETF | CMP has a registry at [https://www.iana.org/assignments/cmp] | 2021-05-20 | 2025-01-14 |
| coap | [RFC8323] | permanent | IETF | 2017-12-22 | ||
| coap-eap | [RFC-ietf-ace-wg-coap-eap-14] | permanent | IETF | 2025-02-14 | ||
| core | [RFC6690] | permanent | IETF | |||
| csaf | [Common Security Advisory Framework Version 2.0, OASIS Standard] | provisional | [OASIS_Open] | 2023-02-10 | ||
| csaf-aggregator | [Common Security Advisory Framework Version 2.0, OASIS Standard] | provisional | [OASIS_Open] | 2023-02-10 | ||
| csvm | [https://www.w3.org/TR/tabular-data-model/#default-locations-and-site-wide-location-configuration] | permanent | W3C | 2015-09-28 | ||
| did.json | [https://w3c-ccg.github.io/did-method-web] | provisional | [Credentials_Community_Group] | 2023-01-31 | ||
| did-configuration.json | [https://identity.foundation/.well-known/resources/did-configuration] | provisional | [Claims_and_Credentials_WG] | 2023-01-31 | ||
| dnt | [http://www.w3.org/TR/tracking-dnt/#status-resource] | permanent | [W3C_Tracking_Protection_WG] | 2015-08-19 | ||
| dnt-policy.txt | [https://www.eff.org/dnt-policy] | permanent | Electronic Frontier Foundation | 2015-08-19 | ||
| dots | [RFC9132] | permanent | IETF | 2020-01-16 | 2021-06-11 | |
| easy-proxy | [https://github.com/bytedance/g3/blob/master/doc/easy-proxy.md] | provisional | [The_G3_Project] | 2025-05-01 | ||
| ecips | [https://ecips.that.world/24-ECIPURI] | provisional | [Wei_Tang] | 2019-04-10 | ||
| edhoc | [RFC9528] | permanent | IETF | 2023-08-29 | ||
| enterprise-network-security | [ETSI TS 103 523-5 clause 4.3.4.3.4.2] | permanent | [ETSI_TC_CYBER] | 2022-02-07 | ||
| enterprise-transport-security | [ETSI TS 103 523-3 clause 4.3.8.3] | permanent | [ETSI_TC_CYBER] | 2019-05-14 | ||
| est | [RFC7030][RFC9148] | permanent | IETF | 2013-08-16 | 2020-04-29 | |
| funding-manifest-urls | [https://fundingjson.org/] | provisional | [info_at_floss.fund] | 2025-04-02 | ||
| genid | [RDF 1.1 Concepts and Abstract Syntax] | permanent | W3C | 2012-11-15 | ||
| gnap-as-rs | [RFC9767, Section 3.1] | permanent | IETF | 2024-10-23 | ||
| gpc.json | [https://globalprivacycontrol.github.io/gpc-spec/] | provisional | [Global_Privacy_Control_project] | 2022-01-28 | ||
| gs1resolver | [GS1 Digital Link, Section 7.11] | permanent | [GS1] | 2020-05-18 | ||
| hoba | [RFC7486, Section 6] | permanent | IETF | 2015-01-20 | ||
| host-meta | [RFC6415] | permanent | IETF | The "host-meta" documents obtained from the same host using the HTTP and HTTPS protocols (using default ports) MUST be identical. | ||
| host-meta.json | [RFC6415] | permanent | IETF | The "host-meta.json" documents obtained from the same host using the HTTP and HTTPS protocols (using default ports) MUST be identical. | ||
| hosting-provider | [https://github.com/Automattic/hosting-provider] | provisional | [Automattic_Inc.] | 2020-07-21 | ||
| http-opportunistic | [RFC8164, Section 2.3][Status change of HTTP experiments to Historic] | obsoleted | IETF | 2017-03-20 | 2021-12-28 | |
| idp-proxy | [RFC8827] | permanent | IETF | 2019-07-25 | ||
| jmap | [RFC8620, Section 2.2] | permanent | IETF | 2019-03-28 | ||
| keybase.txt | [https://keybase.io/__/keybase_well_known] | permanent | [The_Keybase_Project] | Related information: Documentation for the Keybase [command line] and [API]. | 2014-04-08 | |
| knx | [https://knxcloud.org/index.php/s/jdZXpCC3EolQgH2/download] | provisional | [KNX_Association] | 2023-08-15 | ||
| looking-glass | [RFC8522, Section 2] | permanent | [M._Stubbig] | 2018-12-07 | ||
| masque | [RFC9298][RFC9484] | permanent | IETF | For sub-suffix allocations, see the registry at [https://www.iana.org/assignments/masque]. | 2022-06-23 | 2023-05-16 |
| matrix | [https://spec.matrix.org/latest/client-server-api/#well-known-uri][https://spec.matrix.org/latest/server-server-api/#getwell-knownmatrixserver] | permanent | [The_Matrix.org_Foundation_C.I.C.] | 2019-04-16 | 2023-06-20 | |
| mercure | [https://mercure.rocks/spec] | provisional | [Les-Tilleuls.coop] | 2023-03-20 | ||
| mta-sts.txt | [RFC8461] | permanent | IETF | 2018-06-21 | ||
| mud | obsoleted | 2016-11-23 | 2021-12-28 | |||
| nfv-oauth-server-configuration | [ETSI GS NFV-SEC 022 V2.7.1] | permanent | [ETSI] | 2019-06-26 | 2020-01-22 | |
| ni | [RFC6920] | permanent | IETF | |||
| nodeinfo | [https://nodeinfo.diaspora.software/] | provisional | [NodeInfo_Developer_Community] | 2024-07-29 | ||
| nostr.json | [https://github.com/nostr-protocol/nips/blob/master/05.md] | provisional | [Nostr_Developer_Community] | 2024-03-18 | ||
| oauth-authorization-server | [RFC8414, Section 3] | permanent | IESG | 2018-03-27 | ||
| oauth-protected-resource | [RFC9728, Section 3] | permanent | IETF | 2024-10-22 | ||
| ohttp-gateway | [RFC9540] | permanent | IETF | 2023-10-25 | ||
| openid-federation | [Section 9 of OpenID Federation 1.0] | provisional | [OpenID_Foundation_Artifact_Binding_Working_Group] | 2024-07-26 | ||
| open-resource-discovery | [https://sap.github.io/open-resource-discovery/] | provisional | [SAP_SE] | 2023-11-27 | ||
| openid-configuration | [http://openid.net/specs/openid-connect-discovery-1_0.html] | permanent | [OpenID_Foundation_Artifact_Binding_Working_Group] | 2013-08-27 | ||
| openorg | [http://opd.data.ac.uk/] | permanent | [cjg_at_ecs.soton.ac.uk] | 2015-05-29 | ||
| oslc | [https://docs.oasis-open-projects.org/oslc-op/core/v3.0/ps01/oslc-core.html] | permanent | [OASIS] | 2020-12-29 | ||
| pki-validation | [Section 3.2.2.4.6 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 | [CA_Browser_Forum] | See also [https://cabforum.org/baseline-requirements-documents/] | 2017-02-06 | |
| posh | [RFC7711] | permanent | IETF | 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 | |
| privacy-sandbox-attestations.json | [https://github.com/privacysandbox/attestation] | provisional | [Google_Inc.] | 2024-12-04 | ||
| private-token-issuer-directory | [RFC9578] | permanent | IETF | 2023-10-09 | ||
| probing.txt | [RFC9511] | permanent | IETF | 2023-09-01 | ||
| pvd | [RFC8801] | permanent | IETF | 2020-02-18 | ||
| rd | [RFC9176] | permanent | IETF | 2021-05-04 | ||
| related-website-set.json | [https://github.com/GoogleChrome/related-website-sets/blob/main/Well-Known-Specification.md] | provisional | [Google_Inc.] | 2023-12-01 | ||
| reload-config | [RFC6940] | permanent | IETF | |||
| repute-template | [RFC7072] | permanent | IETF | 2013-09-30 | ||
| resourcesync | [http://www.openarchives.org/rs/resourcesync] | permanent | [NISO] | 2017-05-26 | ||
| sbom | [RFC9472] | permanent | IETF | See ISO/IEC 5962:2021 and SPDX.org | 2023-05-12 | |
| security.txt | [RFC9116] | permanent | IETF | 2021-07-13 | ||
| ssf-configuration | [https://openid.net/specs/openid-sharedsignals-framework-1_0-ID2.html] | provisional | [OpenID_Shared_Signals_Working_Group] | 2024-04-18 | ||
| sshfp | [https://sshfp.github.io/sshfp.html] | provisional | [Cynthia_Revström] | 2020-07-21 | ||
| stun-key | [RFC7635] | permanent | IETF | 2015-06-12 | ||
| terraform.json | [https://developer.hashicorp.com/terraform/internals/remote-service-discovery] | provisional | [HashiCorp_Terraform_Team] | 2024-07-01 | ||
| thread | [https://www.threadgroup.org/support#specifications] | permanent | [Thread_Group_Inc.] | 2018-11-29 | ||
| time | [http://phk.freebsd.dk/time/20151129/] | permanent | [Poul-Henning_Kamp] | 2015-12-09 | ||
| timezone | [RFC7808] | permanent | IESG | 2015-08-03 | ||
| tdmrep.json | [https://www.w3.org/2022/tdmrep/] | provisional | W3C | 2024-02-15 | ||
| tor-relay | [The "tor-relay" Well-Known Resource Identifier] | provisional | [Tor_Project_Development_Mailing_List] | 2020-10-06 | ||
| tpcd | [The "tpcd/grace-period.json" Well-Known Resource Identifier] | provisional | [Google_LLC] | [https://github.com/explainers-by-googlers/3pcd-grace-period-opt-out] | 2024-05-08 | |
| traffic-advice | [https://buettner.github.io/private-prefetch-proxy/traffic-advice.html] | provisional | [Jeremy_Roman] | 2022-03-29 | ||
| trust.txt | [https://journallist.net/reference-document-for-trust-txt-specifications] | provisional | JournalList.net | 2022-02-04 | ||
| uma2-configuration | [UMA 2.0 Grant for OAuth 2.0, Section 2] | permanent | [Kantara_UMA_WG] | 2017-06-20 | ||
| void | [http://www.w3.org/TR/void] | permanent | W3C | 2011-05-11 | ||
| webfinger | [RFC7033] | permanent | IETF | 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 |
| webweaver.json | [https://www.webweaver.de/well-known] | provisional | [DigiOnline_GmbH] | 2022-08-11 | ||
| wot | [https://www.w3.org/TR/wot-discovery/#introduction-well-known] | permanent | [W3C_WoT_WG] | 2023-01-24 |