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IETF RFC 4229
HTTP Header Field Registrations
Last modified on Thursday, December 22nd, 2005
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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 © 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
2.1.52. Header field: IM ....................................23
2.1.53. Header field: If ....................................23
2.1.54. Header field: If-Match ..............................23
2.1.55. Header field: If-Modified-Since .....................24
2.1.56. Header field: If-None-Match .........................24
2.1.57. Header field: If-Range ..............................24
2.1.58. Header field: If-Unmodified-Since ...................25
2.1.59. Header field: Keep-Alive ............................25
2.1.60. Header field: Label .................................25
2.1.61. Header field: Last-Modified .........................25
2.1.62. Header field: Link ..................................26
2.1.63. Header field: Location ..............................26
2.1.64. Header field: Lock-Token ............................26
2.1.65. Header field: MIME-Version ..........................27
2.1.66. Header field: Man ...................................27
2.1.67. Header field: Max-Forwards ..........................27
2.1.68. Header field: Meter .................................27
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RFC 4229 HTTP Header Fields December 2005
2.1.69. Header field: Negotiate .............................28
2.1.70. Header field: Opt ...................................28
2.1.71. Header field: Ordering-Type .........................28
2.1.72. Header field: Overwrite .............................29
2.1.73. Header field: P3P ...................................29
2.1.74. Header field: PEP ...................................29
2.1.75. Header field: PICS-Label ............................30
2.1.76. Header field: Pep-Info ..............................30
2.1.77. Header field: Position ..............................30
2.1.78. Header field: Pragma ................................31
2.1.79. Header field: ProfileObject .........................31
2.1.80. Header field: Protocol ..............................31
2.1.81. Header field: Protocol-Info .........................32
2.1.82. Header field: Protocol-Query ........................32
2.1.83. Header field: Protocol-Request ......................32
2.1.84. Header field: Proxy-Authenticate ....................32
2.1.85. Header field: Proxy-Authentication-Info .............33
2.1.86. Header field: Proxy-Authorization ...................33
2.1.87. Header field: Proxy-Features ........................33
2.1.88. Header field: Proxy-Instruction .....................34
2.1.89. Header field: Public ................................34
2.1.90. Header field: Range .................................34
2.1.91. Header field: Referer ...............................34
2.1.92. Header field: Retry-After ...........................35
2.1.93. Header field: Safe ..................................35
2.1.94. Header field: Security-Scheme .......................35
2.1.95. Header field: Server ................................36
2.1.96. Header field: Set-Cookie ............................36
2.1.97. Header field: Set-Cookie2 ...........................36
2.1.98. Header field: SetProfile ............................36
2.1.99. Header field: SoapAction ............................37
2.1.100. Header field: Status-URI ...........................37
2.1.101. Header field: Surrogate-Capability .................38
2.1.102. Header field: Surrogate-Control ....................38
2.1.103. Header field: TCN ..................................38
2.1.104. Header field: TE ...................................39
2.1.105. Header field: Timeout ..............................39
2.1.106. Header field: Trailer ..............................39
2.1.107. Header field: Transfer-Encoding ....................39
2.1.108. Header field: URI ..................................40
2.1.109. Header field: Upgrade ..............................40
2.1.110. Header field: User-Agent ...........................40
2.1.111. Header field: Variant-Vary .........................41
2.1.112. Header field: Vary .................................41
2.1.113. Header field: Via ..................................41
2.1.114. Header field: WWW-Authenticate .....................41
2.1.115. Header field: Want-Digest ..........................42
2.1.116. Header field: Warning ..............................42
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RFC 4229 HTTP Header Fields December 2005
2.2. Provisional HTTP Header Field Submissions .................43
2.2.1. Header field: Compliance .............................43
2.2.2. Header field: Content-Transfer-Encoding ..............43
2.2.3. Header field: Cost ...................................44
2.2.4. Header field: Message-ID .............................44
2.2.5. Header field: Non-Compliance .........................44
2.2.6. Header field: Optional ...............................44
2.2.7. Header field: Resolution-Hint ........................45
2.2.8. Header field: Resolver-Location ......................45
2.2.9. Header field: SubOK ..................................46
2.2.10. Header field: Subst .................................46
2.2.11. Header field: Title .................................46
2.2.12. Header field: UA-Color ..............................46
2.2.13. Header field: UA-Media ..............................47
2.2.14. Header field: UA-Pixels .............................47
2.2.15. Header field: UA-Resolution .........................48
2.2.16. Header field: UA-Windowpixels .......................48
2.2.17. Header field: Version ...............................48
3. IANA Considerations ............................................49
4. Security Considerations ........................................49
5. Acknowledgements ...............................................49
6. Informative References .........................................49
1. Introduction
HTTP/1.0 [3] and HTTP/1.1 [11] define protocol constructs
(respectively, the HTTP-header and message-header BNF rules) that are
used as message headers. These specifications also define a number
of HTTP headers themselves, and they provide for extension through
the use of new field-names.
This document defines the initial contents of an IANA registry that
catalogs permanent HTTP header field-names, and of an IANA repository
that catalogs provisional HTTP header field-names. Both are operated
according to Registration Procedures for Message Header Fields [1].
Note that neither tracks the syntax or semantics of field-values.
Also, while some HTTP headers have different semantics depending on
their context (e.g., Cache-Control in requests and responses), both
registries consider the HTTP header field-name name space singular.
Also, some contact details listed may no longer be correct.
2. Registration Templates
Header field entries are summarized in tabular form for convenience
of reference and presented in full in the following sections.
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RFC 4229 HTTP Header Fields December 2005
2.1. Permanent HTTP Header Field Registrations
Header name Protocol
----------- --------
A-IM http
Accept http
Accept-Additions http
Accept-Charset http
Accept-Encoding http
Accept-Features http
Accept-Language http
Accept-Ranges http
Age http
Allow http
Alternates http
Authentication-Info http
Authorization http
C-Ext http
C-Man http
C-Opt http
C-PEP http
C-PEP-Info http
Cache-Control http
Connection http
Content-Base http
Content-Disposition http
Content-Encoding http
Content-ID http
Content-Language http
Content-Length http
Content-Location http
Content-MD5 http
Content-Range http
Content-Script-Type http
Content-Style-Type http
Content-Type http
Content-Version http
Cookie http
Cookie2 http
DAV http
Date http
Default-Style http
Delta-Base http
Depth http
Derived-From http
Destination http
Differential-ID http
Digest http
Nottingham & Mogul Informational PAGE 5
RFC 4229 HTTP Header Fields December 2005
ETag http
Expect http
Expires http
Ext http
From http
GetProfile http
Host http
IM http
If http
If-Match http
If-Modified-Since http
If-None-Match http
If-Range http
If-Unmodified-Since http
Keep-Alive http
Label http
Last-Modified http
Link http
Location http
Lock-Token http
MIME-Version http
Man http
Max-Forwards http
Meter http
Negotiate http
Opt http
Ordering-Type http
Overwrite http
P3P http
PEP http
PICS-Label http
Pep-Info http
Position http
Pragma http
ProfileObject http
Protocol http
Protocol-Info http
Protocol-Query http
Protocol-Request http
Proxy-Authenticate http
Proxy-Authentication-Info http
Proxy-Authorization http
Proxy-Features http
Proxy-Instruction http
Public http
Range http
Referer http
Retry-After http
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RFC 4229 HTTP Header Fields December 2005
Safe http
Security-Scheme http
Server http
Set-Cookie http
Set-Cookie2 http
SetProfile http
SoapAction http
Status-URI http
Surrogate-Capability http
Surrogate-Control http
TCN http
TE http
Timeout http
Trailer http
Transfer-Encoding http
URI http
Upgrade http
User-Agent http
Variant-Vary http
Vary http
Via http
WWW-Authenticate http
Want-Digest http
Warning http
2.1.1. Header field: A-IM
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3229 [16]
Nottingham & Mogul Informational PAGE 7
RFC 4229 HTTP Header Fields December 2005
2.1.2. Header field: Accept
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.3. Header field: Accept-Additions
Applicable protocol: http [11]
Status: informational
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2324 [9]
Related information: spoof
2.1.4. Header field: Accept-Charset
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 8
RFC 4229 HTTP Header Fields December 2005
2.1.5. Header field: Accept-Encoding
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.6. Header field: Accept-Features
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Andrew H. Mutz (mutz@hpl.hp.com)
Koen Holtman (koen@win.tue.nl)
Specification document(s):
RFC 2295 [7]
2.1.7. Header field: Accept-Language
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 9
RFC 4229 HTTP Header Fields December 2005
2.1.8. Header field: Accept-Ranges
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.9. Header field: Age
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.10. Header field: Allow
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.11. Header field: Alternates
Applicable protocol: http [11]
Status: experimental
Nottingham & Mogul Informational PAGE 10
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
Andrew H. Mutz (mutz@hpl.hp.com)
Koen Holtman (koen@win.tue.nl)
Specification document(s):
RFC 2295 [7]
2.1.12. Header field: Authentication-Info
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2617 [12]
2.1.13. Header field: Authorization
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.14. Header field: C-Ext
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Henrik Frystyk Nielsen (frystyk@microsoft.com)
Paul J. Leach (paulle@microsoft.com)
Scott Lawrence (lawrence@agranat.com)
Specification document(s):
RFC 2774 [14]
Nottingham & Mogul Informational PAGE 11
RFC 4229 HTTP Header Fields December 2005
2.1.15. Header field: C-Man
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Henrik Frystyk Nielsen (frystyk@microsoft.com)
Paul J. Leach (paulle@microsoft.com)
Scott Lawrence (lawrence@agranat.com)
Specification document(s):
RFC 2774 [14]
2.1.16. Header field: C-Opt
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Henrik Frystyk Nielsen (frystyk@microsoft.com)
Paul J. Leach (paulle@microsoft.com)
Scott Lawrence (lawrence@agranat.com)
Specification document(s):
RFC 2774 [14]
2.1.17. Header field: C-PEP
Applicable protocol: http [11]
Status: deprecated
Author/change controller:
Henrik Frystyk Nielsen (frystyk@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Dan Connolly (connolly@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Rohit Khare (khare@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Eric Prud'hommeaux (eric@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Specification document(s):
PEP [29]
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RFC 4229 HTTP Header Fields December 2005
2.1.18. Header field: C-PEP-Info
Applicable protocol: http [11]
Status: deprecated
Author/change controller:
Henrik Frystyk Nielsen (frystyk@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Dan Connolly (connolly@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Rohit Khare (khare@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Eric Prud'hommeaux (eric@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Specification document(s):
PEP [29]
2.1.19. Header field: Cache-Control
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.20. Header field: Connection
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 13
RFC 4229 HTTP Header Fields December 2005
2.1.21. Header field: Content-Base
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2068 [4]
2.1.22. Header field: Content-Disposition
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.23. Header field: Content-Encoding
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.24. Header field: Content-ID
Applicable protocol: http [11]
Status: informational
Nottingham & Mogul Informational PAGE 14
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
Arthur van Hoff (avh@marimba.com)
Marimba Inc.
John Giannandrea (jg@netscape.com)
Netscape Inc.
Mark Hapner (mark.hapner@sun.com)
Sun Microsystems Inc.
Steve Carter (srcarter@novell.com)
Novell Inc.
Milo Medin (medin@home.net)
At Home Corp
Specification document(s):
DRP [20]
2.1.25. Header field: Content-Language
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.26. Header field: Content-Length
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.27. Header field: Content-Location
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 15
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.28. Header field: Content-MD5
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.29. Header field: Content-Range
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.30. Header field: Content-Script-Type
Applicable protocol: http [11]
Status: standard
Author/change controller:
W3C (web-human@w3.org)
World Wide Web Consortium
Specification document(s):
HTML 4 [21]
Nottingham & Mogul Informational PAGE 16
RFC 4229 HTTP Header Fields December 2005
2.1.31. Header field: Content-Style-Type
Applicable protocol: http [11]
Status: standard
Author/change controller:
W3C (web-human@w3.org)
World Wide Web Consortium
Specification document(s):
HTML 4 [21]
2.1.32. Header field: Content-Type
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.33. Header field: Content-Version
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2068 [4]
2.1.34. Header field: Cookie
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 17
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2965 [15]
2.1.35. Header field: Cookie2
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2965 [15]
2.1.36. Header field: DAV
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
2.1.37. Header field: Date
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 18
RFC 4229 HTTP Header Fields December 2005
2.1.38. Header field: Default-Style
Applicable protocol: http [11]
Status: standard
Author/change controller:
W3C (web-human@w3.org)
World Wide Web Consortium
Specification document(s):
HTML 4 [21]
2.1.39. Header field: Delta-Base
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3229 [16]
2.1.40. Header field: Depth
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
2.1.41. Header field: Derived-From
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 19
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2068 [4]
2.1.42. Header field: Destination
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
2.1.43. Header field: Differential-ID
Applicable protocol: http [11]
Status: informational
Author/change controller:
Arthur van Hoff (avh@marimba.com)
Marimba Inc.
John Giannandrea (jg@netscape.com)
Netscape Inc.
Mark Hapner (mark.hapner@sun.com)
Sun Microsystems Inc.
Steve Carter (srcarter@novell.com)
Novell Inc.
Milo Medin (medin@home.net)
At Home Corp
Specification document(s):
DRP [20]
2.1.44. Header field: Digest
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 20
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3230 [17]
2.1.45. Header field: ETag
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.46. Header field: Expect
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.47. Header field: Expires
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 21
RFC 4229 HTTP Header Fields December 2005
2.1.48. Header field: Ext
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Henrik Frystyk Nielsen (frystyk@microsoft.com)
Paul J. Leach (paulle@microsoft.com)
Scott Lawrence (lawrence@agranat.com)
Specification document(s):
RFC 2774 [14]
2.1.49. Header field: From
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.50. Header field: GetProfile
Applicable protocol: http [11]
Status: informational
Author/change controller:
Pat Hensley (hensley@firefly.net)
FireFly Network, Inc.
Max Metral (max@firefly.net)
FireFly Network, Inc.
Upendra Shardanand (shard@firefly.net)
FireFly Network, Inc.
Donna Converse (converse@netscape.com)
Netscape Communications
Mike Myers (mmyers@verisign.com)
Verisign, Inc.
Specification document(s):
OPS over HTTP [22]
Nottingham & Mogul Informational PAGE 22
RFC 4229 HTTP Header Fields December 2005
2.1.51. Header field: Host
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.52. Header field: IM
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3229 [16]
2.1.53. Header field: If
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
2.1.54. Header field: If-Match
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 23
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.55. Header field: If-Modified-Since
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.56. Header field: If-None-Match
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.57. Header field: If-Range
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 24
RFC 4229 HTTP Header Fields December 2005
2.1.58. Header field: If-Unmodified-Since
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.59. Header field: Keep-Alive
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2068 [4]
2.1.60. Header field: Label
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3253 [18]
2.1.61. Header field: Last-Modified
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 25
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.62. Header field: Link
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2068 [4]
2.1.63. Header field: Location
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.64. Header field: Lock-Token
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
Nottingham & Mogul Informational PAGE 26
RFC 4229 HTTP Header Fields December 2005
2.1.65. Header field: MIME-Version
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.66. Header field: Man
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Henrik Frystyk Nielsen (frystyk@microsoft.com)
Paul J. Leach (paulle@microsoft.com)
Scott Lawrence (lawrence@agranat.com)
Specification document(s):
RFC 2774 [14]
2.1.67. Header field: Max-Forwards
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.68. Header field: Meter
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 27
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2227 [6]
2.1.69. Header field: Negotiate
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Andrew H. Mutz (mutz@hpl.hp.com)
Koen Holtman (koen@win.tue.nl)
Specification document(s):
RFC 2295 [7]
2.1.70. Header field: Opt
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Henrik Frystyk Nielsen (frystyk@microsoft.com)
Paul J. Leach (paulle@microsoft.com)
Scott Lawrence (lawrence@agranat.com)
Specification document(s):
RFC 2774 [14]
2.1.71. Header field: Ordering-Type
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3648 [19]
Nottingham & Mogul Informational PAGE 28
RFC 4229 HTTP Header Fields December 2005
2.1.72. Header field: Overwrite
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
2.1.73. Header field: P3P
Applicable protocol: http [11]
Status: standard
Author/change controller:
W3C (web-human@w3.org)
World Wide Web Consortium
Specification document(s):
P3P [23]
2.1.74. Header field: PEP
Applicable protocol: http [11]
Status: deprecated
Author/change controller:
Henrik Frystyk Nielsen (frystyk@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Dan Connolly (connolly@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Rohit Khare (khare@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Eric Prud'hommeaux (eric@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Specification document(s):
PEP [29]
Nottingham & Mogul Informational PAGE 29
RFC 4229 HTTP Header Fields December 2005
2.1.75. Header field: PICS-Label
Applicable protocol: http [11]
Status: standard
Author/change controller:
W3C (web-human@w3.org)
World Wide Web Consortium
Specification document(s):
PICSLabels [24]
2.1.76. Header field: Pep-Info
Applicable protocol: http [11]
Status: deprecated
Author/change controller:
Henrik Frystyk Nielsen (frystyk@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Dan Connolly (connolly@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Rohit Khare (khare@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Eric Prud'hommeaux (eric@w3.org)
World Wide Web Consortium, MIT Laboratory for Computer Science
Specification document(s): PEP [29]
2.1.77. Header field: Position
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3648 [19]
Nottingham & Mogul Informational PAGE 30
RFC 4229 HTTP Header Fields December 2005
2.1.78. Header field: Pragma
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.79. Header field: ProfileObject
Applicable protocol: http [11]
Status: informational
Author/change controller:
Pat Hensley (hensley@firefly.net)
FireFly Network, Inc.
Max Metral (max@firefly.net)
FireFly Network, Inc.
Upendra Shardanand (shard@firefly.net)
FireFly Network, Inc.
Donna Converse (converse@netscape.com)
Netscape Communications
Mike Myers (mmyers@verisign.com)
Verisign, Inc.
Specification document(s):
OPS over HTTP [22]
2.1.80. Header field: Protocol
Applicable protocol: http [11]
Status: standard
Author/change controller:
W3C (web-human@w3.org)
World Wide Web Consortium
Specification document(s):
PICSLabels [24]
Nottingham & Mogul Informational PAGE 31
RFC 4229 HTTP Header Fields December 2005
2.1.81. Header field: Protocol-Info
Applicable protocol: http [11]
Status: deprecated
Author/change controller:
Don Eastlake (dee@cybercash.com)
Rohit Khare (khare@w3.org)
Jim Miller (jmiller@w3.org)
Specification document(s):
Selecting Payment Mechanisms [26]
2.1.82. Header field: Protocol-Query
Applicable protocol: http [11]
Status: deprecated
Author/change controller:
Don Eastlake (dee@cybercash.com)
Rohit Khare (khare@w3.org)
Jim Miller (jmiller@w3.org)
Specification document(s):
Selecting Payment Mechanisms [26]
2.1.83. Header field: Protocol-Request
Applicable protocol: http [11]
Status: standard
Author/change controller:
W3C (web-human@w3.org)
World Wide Web Consortium
Specification document(s):
PICSLabels [24]
2.1.84. Header field: Proxy-Authenticate
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 32
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.85. Header field: Proxy-Authentication-Info
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2617 [12]
2.1.86. Header field: Proxy-Authorization
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.87. Header field: Proxy-Features
Applicable protocol: http [11]
Status: informational
Author/change controller:
Phillip M. Hallam-Baker (hallam@w3.org)
W3C
Specification document(s):
Proxy Notification [27]
Nottingham & Mogul Informational PAGE 33
RFC 4229 HTTP Header Fields December 2005
2.1.88. Header field: Proxy-Instruction
Applicable protocol: http [11]
Status: informational
Author/change controller:
Phillip M. Hallam-Baker (hallam@w3.org)
W3C
Specification document(s):
Proxy Notification [27]
2.1.89. Header field: Public
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2068 [4]
2.1.90. Header field: Range
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.91. Header field: Referer
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 34
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.92. Header field: Retry-After
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.93. Header field: Safe
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Koen Holtman (koen@win.tue.nl)
Specification document(s):
RFC 2310 [8]
2.1.94. Header field: Security-Scheme
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Eric Rescorla (ekr@rtfm.com)
A. Schiffman (ams@terisa.com)
Specification document(s):
RFC 2660 [13]
Nottingham & Mogul Informational PAGE 35
RFC 4229 HTTP Header Fields December 2005
2.1.95. Header field: Server
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.96. Header field: Set-Cookie
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2109 [5]
2.1.97. Header field: Set-Cookie2
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2965 [15]
2.1.98. Header field: SetProfile
Applicable protocol: http [11]
Status: informational
Nottingham & Mogul Informational PAGE 36
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
Pat Hensley (hensley@firefly.net)
FireFly Network, Inc.
Max Metral (max@firefly.net)
FireFly Network, Inc.
Upendra Shardanand (shard@firefly.net)
FireFly Network, Inc.
Donna Converse (converse@netscape.com)
Netscape Communications
Mike Myers (mmyers@verisign.com)
Verisign, Inc.
Specification document(s):
OPS over HTTP [22]
2.1.99. Header field: SoapAction
Applicable protocol: http [11]
Status: informational
Author/change controller:
Don Box (dbox@develop.com)
DevelopMentor
David Ehnebuske (davide@us.ibm.com)
IBM
Gopal Kakivaya (gopalk@microsoft.com)
Microsoft
Andrew Layman (andrewl@microsoft.com)
Microsoft
Noah Mendelsohn (Noah_Mendelsohn@lotus.com)
Lotus Development Corp.
Hernik Frystyk Nielsen (frystyk@microsoft.com)
Microsoft
Satish Thatte (satisht@microsoft.com)
Microsoft
Dave Winer (dave@userland.com)
UserLand Software, Inc.
Specification document(s):
SOAP [28]
2.1.100. Header field: Status-URI
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 37
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
2.1.101. Header field: Surrogate-Capability
Applicable protocol: http [11]
Status: informational
Author/change controller:
Mark Nottingham (mnot@akamai.com)
Akamai
Xiang Liu (xiang.liu@oracle.com)
Oracle
Specification document(s):
edge-arch [25]
2.1.102. Header field: Surrogate-Control
Applicable protocol: http [11]
Status: informational
Author/change controller:
Mark Nottingham (mnot@akamai.com)
Akamai
Xiang Liu (xiang.liu@oracle.com)
Oracle
Specification document(s):
edge-arch [25]
2.1.103. Header field: TCN
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Andrew H. Mutz (mutz@hpl.hp.com)
Koen Holtman (koen@win.tue.nl)
Nottingham & Mogul Informational PAGE 38
RFC 4229 HTTP Header Fields December 2005
Specification document(s):
RFC 2295 [7]
2.1.104. Header field: TE
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.105. Header field: Timeout
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2518 [10]
2.1.106. Header field: Trailer
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.107. Header field: Transfer-Encoding
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 39
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.108. Header field: URI
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2068 [4]
2.1.109. Header field: Upgrade
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.110. Header field: User-Agent
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 40
RFC 4229 HTTP Header Fields December 2005
2.1.111. Header field: Variant-Vary
Applicable protocol: http [11]
Status: experimental
Author/change controller:
Andrew H. Mutz (mutz@hpl.hp.com)
Koen Holtman (koen@win.tue.nl)
Specification document(s):
RFC 2295 [7]
2.1.112. Header field: Vary
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.113. Header field: Via
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.114. Header field: WWW-Authenticate
Applicable protocol: http [11]
Status: standard
Nottingham & Mogul Informational PAGE 41
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
2.1.115. Header field: Want-Digest
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 3230 [17]
2.1.116. Header field: Warning
Applicable protocol: http [11]
Status: standard
Author/change controller:
IETF (iesg@ietf.org)
Internet Engineering Task Force
Specification document(s):
RFC 2616 [11]
Nottingham & Mogul Informational PAGE 42
RFC 4229 HTTP Header Fields December 2005
2.2. Provisional HTTP Header Field Submissions
Header name Protocol
----------- --------
Compliance http
Content-Transfer-Encoding http
Cost http
Message-ID http
Non-Compliance http
Optional http
Resolution-Hint http
Resolver-Location http
SubOK http
Subst http
Title http
UA-Color http
UA-Media http
UA-Pixels http
UA-Resolution http
UA-Windowpixels http
Version http
2.2.1. Header field: Compliance
Applicable protocol: http [11]
Status: provisional
Author/change controller: Jeffrey C. Mogul (mogul@wrl.dec.com)
Western Research Laboratory, Digital Equipment Corporation Josh
Cohen (josh@netscape.com) Netscape Communications Corporation
Scott Lawrence (lawrence@agranat.com) Agranat Systems, Inc.
Specification document(s):
OPTIONS messages [31]
2.2.2. Header field: Content-Transfer-Encoding
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Tim Berners-Lee (timbl@w3.org)
MIT Laboratory for Computer Science
Nottingham & Mogul Informational PAGE 43
RFC 4229 HTTP Header Fields December 2005
Specification document(s):
Object Headers [2]
2.2.3. Header field: Cost
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Tim Berners-Lee (timbl@w3.org)
MIT Laboratory for Computer Science
Specification document(s):
Object Headers [2]
2.2.4. Header field: Message-ID
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Tim Berners-Lee (timbl@w3.org)
MIT Laboratory for Computer Science
Specification document(s):
Object Headers [2]
2.2.5. Header field: Non-Compliance
Applicable protocol: http [11]
Status: provisional
Author/change controller: Jeffrey C. Mogul (mogul@wrl.dec.com)
Western Research Laboratory, Digital Equipment Corporation Josh
Cohen (josh@netscape.com) Netscape Communications Corporation
Scott Lawrence (lawrence@agranat.com) Agranat Systems, Inc.
Specification document(s):
OPTIONS messages [31]
2.2.6. Header field: Optional
Applicable protocol: http [11]
Status: provisional
Nottingham & Mogul Informational PAGE 44
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
John Mallery (jcma@ai.mit.edu)
MIT Artificial Intelligence Laboratory
Lewis Girod (girod@lcs.mit.edu)
MIT Laboratory for Computer Science
Benjie Chen (benjie@lcs.mit.edu)
MIT Laboratory for Computer Science
Henrik Frystyk Nielsen (frystyk@w3.org)
World Wide Web Consortium
Specification document(s):
WIRE [32]
2.2.7. Header field: Resolution-Hint
Applicable protocol: http [11]
Status: provisional
Author/change controller:
John Mallery (jcma@ai.mit.edu)
MIT Artificial Intelligence Laboratory
Lewis Girod (girod@lcs.mit.edu)
MIT Laboratory for Computer Science
Benjie Chen (benjie@lcs.mit.edu)
MIT Laboratory for Computer Science
Henrik Frystyk Nielsen (frystyk@w3.org)
World Wide Web Consortium
Specification document(s):
WIRE [32]
2.2.8. Header field: Resolver-Location
Applicable protocol: http [11]
Status: provisional
Author/change controller:
John Mallery (jcma@ai.mit.edu)
MIT Artificial Intelligence Laboratory
Lewis Girod (girod@lcs.mit.edu)
MIT Laboratory for Computer Science
Benjie Chen (benjie@lcs.mit.edu)
MIT Laboratory for Computer Science
Henrik Frystyk Nielsen (frystyk@w3.org)
World Wide Web Consortium
Nottingham & Mogul Informational PAGE 45
RFC 4229 HTTP Header Fields December 2005
Specification document(s):
WIRE [32]
2.2.9. Header field: SubOK
Applicable protocol: http [11]
Status: provisional
Author/change controller: Jeffrey C. Mogul (mogul@wrl.dec.com)
Western Research Laboratory, Digital Equipment Corporation Arthur
van Hoff (avh@marimba.com) Marimba, Inc.
Specification document(s):
Duplicate Suppression [33]
2.2.10. Header field: Subst
Applicable protocol: http [11]
Status: provisional
Author/change controller: Jeffrey C. Mogul (mogul@wrl.dec.com)
Western Research Laboratory, Digital Equipment Corporation Arthur
van Hoff (avh@marimba.com) Marimba, Inc.
Specification document(s):
Duplicate Suppression [33]
2.2.11. Header field: Title
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Tim Berners-Lee (timbl@w3.org)
MIT Laboratory for Computer Science
Specification document(s):
Object Headers [2]
2.2.12. Header field: UA-Color
Applicable protocol: http [11]
Status: provisional
Nottingham & Mogul Informational PAGE 46
RFC 4229 HTTP Header Fields December 2005
Author/change controller:
Larry Masinter (LMM@acm.org)
Adobe Systems
Lou Montulli (montulli@netscape.com)
Netscape Communications Corp.
Andrew H. Mutz (mutz@hpl.hp.com)
Hewlett-Packard Company
Specification document(s):
UA Attributes [30]
2.2.13. Header field: UA-Media
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Larry Masinter (LMM@acm.org)
Adobe Systems
Lou Montulli (montulli@netscape.com)
Netscape Communications Corp.
Andrew H. Mutz (mutz@hpl.hp.com)
Hewlett-Packard Company
Specification document(s):
UA Attributes [30]
2.2.14. Header field: UA-Pixels
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Larry Masinter (LMM@acm.org)
Adobe Systems
Lou Montulli (montulli@netscape.com)
Netscape Communications Corp.
Andrew H. Mutz (mutz@hpl.hp.com)
Hewlett-Packard Company
Specification document(s):
UA Attributes [31]
Nottingham & Mogul Informational PAGE 47
RFC 4229 HTTP Header Fields December 2005
2.2.15. Header field: UA-Resolution
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Larry Masinter (LMM@acm.org)
Adobe Systems
Lou Montulli (montulli@netscape.com)
Netscape Communications Corp.
Andrew H. Mutz (mutz@hpl.hp.com)
Hewlett-Packard Company
Specification document(s):
UA Attributes [30]
2.2.16. Header field: UA-Windowpixels
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Larry Masinter (LMM@acm.org)
Adobe Systems
Lou Montulli (montulli@netscape.com)
Netscape Communications Corp.
Andrew H. Mutz (mutz@hpl.hp.com)
Hewlett-Packard Company
Specification document(s):
UA Attributes [30]
2.2.17. Header field: Version
Applicable protocol: http [11]
Status: provisional
Author/change controller:
Tim Berners-Lee (timbl@w3.org)
MIT Laboratory for Computer Science
Specification document(s):
Object Headers [2]
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RFC 4229 HTTP Header Fields December 2005
3. IANA Considerations
This specification provides initial registrations of HTTP header
fields in the "Permanent Message Header Field Registry", defined by
Registration Procedures for Message Header Fields [1].
It also provides initial submissions of HTTP header fields in the
"Provisional Message Header Field Repository", defined by the same
document.
4. Security Considerations
No security considerations are introduced by this document beyond
those already inherent in use of the HTTP header fields referenced.
5. Acknowledgements
The authors would like to thank Graham Klyne for his work in defining
the message header registries, his input and help in preparing this
document, and the registry generation software.
6. Informative References
[1] Klyne, G., Nottingham, M., and J. Mogul, "Registration
Procedures for Message Header Fields", BCP 90, RFC 3864,
September 2004.
[2] Berners-Lee, T., "Object Header lines in HTTP", May 1994,
<http://www.w3.org/Protocols/HTTP/Object_Headers.html>.
[3] Berners-Lee, T., Fielding, R., and H. Nielsen, "Hypertext
Transfer Protocol -- HTTP/1.0", RFC 1945, May 1996.
[4] Fielding, R., Gettys, J., Mogul, J., Nielsen, H., and T.
Berners-Lee, "Hypertext Transfer Protocol -- HTTP/1.1", RFC
2068, January 1997.
[5] Kristol, D. and L. Montulli, "HTTP State Management Mechanism",
RFC 2109, February 1997.
[6] Mogul, J. and P. Leach, "Simple Hit-Metering and Usage-Limiting
for HTTP", RFC 2227, October 1997.
[7] Holtman, K. and A. Mutz, "Transparent Content Negotiation in
HTTP", RFC 2295, March 1998.
[8] Holtman, K., "The Safe Response Header Field", RFC 2310, April
1998.
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RFC 4229 HTTP Header Fields December 2005
[9] Masinter, L., "Hyper Text Coffee Pot Control Protocol
(HTCPCP/1.0)", RFC 2324, April 1998.
[10] Goland, Y., Whitehead, E., Faizi, A., Carter, S., and D.
Jensen, "HTTP Extensions for Distributed Authoring -- WEBDAV",
RFC 2518, February 1999.
[11] Fielding, R., Gettys, J., Mogul, J., Frystyk, H., Masinter, L.,
Leach, P., and T. Berners-Lee, "Hypertext Transfer Protocol --
HTTP/1.1", RFC 2616, June 1999.
[12] Franks, J., Hallam-Baker, P., Hostetler, J., Lawrence, S.,
Leach, P., Luotonen, A., and L. Stewart, "HTTP Authentication:
Basic and Digest Access Authentication", RFC 2617, June 1999.
[13] Rescorla, E. and A. Schiffman, "The Secure HyperText Transfer
Protocol", RFC 2660, August 1999.
[14] Nielsen, H., Leach, P., and S. Lawrence, "An HTTP Extension
Framework", RFC 2774, February 2000.
[15] Kristol, D. and L. Montulli, "HTTP State Management Mechanism",
RFC 2965, October 2000.
[16] Mogul, J., Krishnamurthy, B., Douglis, F., Feldmann, A.,
Goland, Y., van Hoff, A., and D. Hellerstein, "Delta encoding
in HTTP", RFC 3229, January 2002.
[17] Mogul, J. and A. Van Hoff, "Instance Digests in HTTP", RFC
3230, January 2002.
[18] Clemm, G., Amsden, J., Ellison, T., Kaler, C., and J.
Whitehead, "Versioning Extensions to WebDAV (Web Distributed
Authoring and Versioning)", RFC 3253, March 2002.
[19] Whitehead, J. and J. Reschke, Ed., "Web Distributed Authoring
and Versioning (WebDAV) Ordered Collections Protocol", RFC
3648, December 2003.
[20] Hoff, A., Payne, J., Hapner, M., Carter, S., and M. Medin, "The
HTTP Distribution and Replication Protocol", W3C NOTE NOTE-
drp-19970825, August 1997.
[21] Raggett, D., Hors, A., and I. Jacobs, "HTML 4.01
Specification", W3C REC REC-html401-19991224, December 1999.
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RFC 4229 HTTP Header Fields December 2005
[22] Hensley, P., Metral, M., Shardanand, U., Converse, D., and M.
Myers, "Implementation of OPS Over HTTP", W3C NOTE NOTE-OPS-
OverHTTP, June 1997.
[23] Marchiori, M., "The Platform for Privacy Preferences 1.0
(P3P1.0) Specification", W3C REC REC-P3P-20020416, April 2002.
[24] Krauskopf, T., Miller, J., Resnick, P., and W. Treese, "PICS
1.1 Label Distribution -- Label Syntax and Communication
Protocols", W3C REC REC-PICS-labels-961031, October 1996.
[25] Nottingham, M. and X. Liu, "Edge Architecture Specification",
W3C NOTE NOTE-edge-arch-20010804, August 2001.
[26] Chung, E. and D. Dardailler, "White Paper: Joint Electronic
Payment Initiative", W3C NOTE NOTE-jepi-970519, May 1997.
[27] Hallam-Baker, P., "Notification for Proxy Caches", W3C NOTE WD-
proxy-960221, February 1996.
[28] Box, D., Ehnebuske, D., Kakivaya, G., Layman, A., Mendelsohn,
N., Nielsen, H., Thatte, S., and D. Winer, "Simple Object
Access Protocol (SOAP) 1.1", W3C NOTE NOTE-SOAP-20000508, May
2000.
[29] Connolly, D., Prod'hommeaux, E., Nielsen, H., and R. Khare,
"PEP Specification: an Extension Mechanism for HTTP", Nov 1998,
<http://www.w3.org/TR/WD-http-pep>.
[30] Masinter, L., Montulli, L., and A. Mutz, "User-Agent Display
Attributes Headers", Work in Progress, November 1996.
[31] Mogul, J., Cohen, J., and S. Lawrence, "Specification of
HTTP/1.1 OPTIONS messages", Work in Progress, August 1997.
[32] Girod, L., Chen, B., Henrik, H., and J. Mallery, "WIRE - W3
Identifier Resolution Extensions", Work in Progress, March
1998.
[33] Mogul, J. and A. van Hoff, "Duplicate Suppression in HTTP",
Work in Progress, April 1998.
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RFC 4229 HTTP Header Fields December 2005
Authors' Addresses
Mark Nottingham
EMail: mnot@pobox.com
URI: http://www.mnot.net/
Jeffrey C. Mogul
HP Labs
1501 Page Mill Road
Palo Alto, CA 94304
US
EMail: JeffMogul@acm.org
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RFC 4229 HTTP Header Fields December 2005
Full Copyright Statement
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HTTP Header Field Registrations
RFC TOTAL SIZE: 70879 bytes
PUBLICATION DATE: Thursday, December 22nd, 2005
LEGAL RIGHTS: The IETF Trust (see BCP 78)
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