impl-info: A link relation type for disclosing implementation information

Document Type Expired Internet-Draft (individual)
Author Carsten Bormann 
Last updated 2021-03-31 (latest revision 2020-09-27)
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


For debugging, it is often helpful to have information about the implementation of a peer. The present specification defines a link relation type, "impl-info", that can be used to convey such information via self-description, such as in the "/.well-known/core" resource.


Carsten Bormann (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)