RFC 6585 · PROPOSED STANDARD · 2012
SUN · 14 JUN 2026
Additional HTTP Status Codes
Overview
RFC 6585, “Additional HTTP Status Codes”, is a Proposed Standard document published in April 2012 by M. Nottingham, R. Fielding. It updates RFC 2616. The canonical text is published by the RFC Editor.
Abstract
This document specifies additional HyperText Transfer Protocol (HTTP) status codes for a variety of common situations. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 6585 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 2012
- RFC 6584 Simple Authentication Schemes for the Asynchronous Layered Coding and NACK-Oriented Reliable Multicast Protocols
- RFC 6586 Experiences from an IPv6-Only Network
- RFC 6583 Operational Neighbor Discovery Problems
- RFC 6587 Transmission of Syslog Messages over TCP
- RFC 6582 The NewReno Modification to TCP's Fast Recovery Algorithm
- RFC 6588 A URN Namespace for ucode
- RFC 6581 Enhanced Remote Direct Memory Access Connection Establishment
- RFC 6589 Considerations for Transitioning Content to IPv6