New protocol elements for HTTP Status Code 451

Document Type Expired Internet-Draft (individual in art area)
Author Shivan Sahib 
Last updated 2021-02-02 (latest revision 2018-08-01)
Replaces draft-451-new-protocol-elements
Stream Internet Engineering Task Force (IETF)
Intended RFC status Informational
Expired & archived
plain text htmlized pdfized bibtex
Stream WG state (None)
Document shepherd Mark Nottingham
IESG IESG state Expired (IESG: Dead)
Action Holders
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to Mark Nottingham <>
IANA IANA review state Version Changed - Review Needed

This Internet-Draft is no longer active.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


This document recommends additional protocol elements to Hypertext Transfer Protocol (HTTP) status code 451 (defined by RFC7725). Discussion of this document was conducted on the Human Rights Protocol Considerations Research Group mailing list [1], briefly on the HTTPBIS Working Group mailing list [2] and on [3].


Shivan Sahib (

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