WebFinger

WebFinger is a protocol specified by the Internet Engineering Task Force IETF that allows for discovery of information about people and things identified by a URI.[1] Information about a person might be discovered via an "acct:" URI, for example, which is a URI that looks like an email address.

Logo of WebFinger

WebFinger is specified as the discovery protocol for OpenID Connect,[2] which is a protocol that allows one to more easily log in to various sites on the Internet.[3]

The WebFinger protocol is used by the federated social networks GNU social[4] and Diaspora[5] to discover users on federated nodes and pods as well as the remoteStorage protocol.[6]

As a historical note, the name "WebFinger" is derived from the old ARPANET Finger protocol, but is a very different protocol designed for HTTP.[7]

The protocol payload is represented in JSON.

See also

References
  1. Jones, Paul E.; Salgueiro, Gonzalo; Jones, Michael B.; Smarr, Joseph (September 2013). "RFC 7033: WebFinger".
  2. OpenID Connect Discovery 1.0
  3. Welcome to OpenID Connect
  4. "AFAIK GNU Social uses OStatus, which uses WebFinger (for identities), Salmon (fo... | Hacker News". news.ycombinator.com. Retrieved 8 April 2017.
  5. How Diaspora Connects Users
  6. remoteStorage protocol draft at the IETF website.
  7. Introducing WebFinger
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