HTTP Header Field Registrations
RFC 4229

Document Type RFC - Informational (December 2005; Errata)
Was draft-nottingham-hdrreg-http (individual in app area)
Last updated 2013-03-02
Stream IETF
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IESG IESG state RFC 4229 (Informational)
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Responsible AD Scott Hollenbeck
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Network Working Group                                      M. Nottingham
Request for Comments: 4229                                      J. Mogul
Category: Informational                                          HP Labs
                                                           December 2005

                    HTTP Header Field Registrations

Status of This Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This document defines the initial contents of a permanent IANA
   registry for HTTP header fields and a provisional repository for HTTP
   header fields, per RFC 3864.

Table of Contents

   1. Introduction ....................................................4
   2. Registration Templates ..........................................4
      2.1. Permanent HTTP Header Field Registrations ..................5
         2.1.1. Header field: A-IM ....................................7
         2.1.2. Header field: Accept ..................................8
         2.1.3. Header field: Accept-Additions ........................8
         2.1.4. Header field: Accept-Charset ..........................8
         2.1.5. Header field: Accept-Encoding .........................9
         2.1.6. Header field: Accept-Features .........................9
         2.1.7. Header field: Accept-Language .........................9
         2.1.8. Header field: Accept-Ranges ..........................10
         2.1.9. Header field: Age ....................................10
         2.1.10. Header field: Allow .................................10
         2.1.11. Header field: Alternates ............................10
         2.1.12. Header field: Authentication-Info ...................11
         2.1.13. Header field: Authorization .........................11
         2.1.14. Header field: C-Ext .................................11
         2.1.15. Header field: C-Man .................................12
         2.1.16. Header field: C-Opt .................................12
         2.1.17. Header field: C-PEP .................................12
         2.1.18. Header field: C-PEP-Info ............................13
         2.1.19. Header field: Cache-Control .........................13
         2.1.20. Header field: Connection ............................13

Nottingham & Mogul           Informational                      [Page 1]
RFC 4229                   HTTP Header Fields              December 2005

         2.1.21. Header field: Content-Base ..........................14
         2.1.22. Header field: Content-Disposition ...................14
         2.1.23. Header field: Content-Encoding ......................14
         2.1.24. Header field: Content-ID ............................14
         2.1.25. Header field: Content-Language ......................15
         2.1.26. Header field: Content-Length ........................15
         2.1.27. Header field: Content-Location ......................15
         2.1.28. Header field: Content-MD5 ...........................16
         2.1.29. Header field: Content-Range .........................16
         2.1.30. Header field: Content-Script-Type ...................16
         2.1.31. Header field: Content-Style-Type ....................17
         2.1.32. Header field: Content-Type ..........................17
         2.1.33. Header field: Content-Version .......................17
         2.1.34. Header field: Cookie ................................17
         2.1.35. Header field: Cookie2 ...............................18
         2.1.36. Header field: DAV ...................................18
         2.1.37. Header field: Date ..................................18
         2.1.38. Header field: Default-Style .........................19
         2.1.39. Header field: Delta-Base ............................19
         2.1.40. Header field: Depth .................................19
         2.1.41. Header field: Derived-From ..........................19
         2.1.42. Header field: Destination ...........................20
         2.1.43. Header field: Differential-ID .......................20
         2.1.44. Header field: Digest ................................20
         2.1.45. Header field: ETag ..................................21
         2.1.46. Header field: Expect ................................21
         2.1.47. Header field: Expires ...............................21
         2.1.48. Header field: Ext ...................................22
         2.1.49. Header field: From ..................................22
         2.1.50. Header field: GetProfile ............................22
         2.1.51. Header field: Host ..................................23
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