This page documents all the relevant standards that the
Apache HTTP Server follows, along with brief descriptions.
In addition to the information listed below, the following resources
should be consulted:
This document is not yet complete.
Regardless of what modules are compiled and used, Apache as a
basic web server complies with the following IETF recommendations:
- RFC 1945
- The Hypertext Transfer Protocol (HTTP) is an application-level
protocol with the lightness and speed necessary for distributed,
collaborative, hypermedia information systems. This documents
- RFC 2616
- The Hypertext Transfer Protocol (HTTP) is an
application-level protocol for distributed, collaborative,
hypermedia information systems. This documents HTTP/1.1.
- RFC 2396
- A Uniform Resource Identifier (URI) is a compact string of
characters for identifying an abstract or physical resource.
Regarding the Hypertext Markup Language, Apache complies with
the following IETF and W3C recommendations:
- RFC 2854
- This document summarizes the history of HTML development,
and defines the "text/html" MIME type by pointing to the relevant
- HTML 4.01 Specification
- This specification defines the HyperText Markup Language (HTML),
the publishing language of the World Wide Web. This specification
defines HTML 4.01, which is a subversion of HTML 4.
- HTML 3.2 Reference
- The HyperText Markup Language (HTML) is a simple markup language
used to create hypertext documents that are portable from one
platform to another. HTML documents are SGML documents.
- XHTML 1.1 -
- This Recommendation defines a new XHTML document type
that is based upon the module framework and modules defined in
Modularization of XHTML.
- XHTML 1.0 The
Extensible HyperText Markup Language (Second Edition)
- This specification defines the Second Edition of XHTML 1.0,
a reformulation of HTML 4 as an XML 1.0 application, and three
DTDs corresponding to the ones defined by HTML 4.
Concerning the different methods of authentication, Apache
follows the following IETF recommendations:
- RFC 2617
- "HTTP/1.0", includes the specification for a Basic
Access Authentication scheme.
The following links document ISO and other language and country
- ISO 639-2
- ISO 639 provides two sets of language codes, one as a two-letter
code set (639-1) and another as a three-letter code set (this part
of ISO 639) for the representation of names of languages.
- These pages document the country names (official short names
in English) in alphabetical order as given in ISO 3166-1 and the
corresponding ISO 3166-1-alpha-2 code elements.
- BCP 47
(Best Current Practice),
- This document describes a language tag for use in cases where
it is desired to indicate the language used in an information
object, how to register values for use in this language tag,
and a construct for matching such language tags.
- RFC 3282
- This document defines a "Content-language:" header, for use in
cases where one desires to indicate the language of something that
has RFC 822-like headers, like MIME body parts or Web documents,
and an "Accept-Language:" header for use in cases where one wishes
to indicate one's preferences with regard to language.