File formats:

Status:

INTERNET STANDARD

Obsoletes:

RFC 2732, RFC 2396, RFC 1808

Updates:

RFC 1738

Updated by:

RFC 6874, RFC 7320, RFC 8820

Authors:

T. Berners-Lee
R. Fielding
L. Masinter

Stream:

IETF

Source:

NON WORKING GROUP

Cite this STD: TXT  |  XML

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Abstract

A Uniform Resource Identifier (URI) is a compact sequence of characters that identifies an abstract or physical resource. This specification defines the generic URI syntax and a process for resolving URI references that might be in relative form, along with guidelines and security considerations for the use of URIs on the Internet. The URI syntax defines a grammar that is a superset of all valid URIs, allowing an implementation to parse the common components of a URI reference without knowing the scheme-specific requirements of every possible identifier. This specification does not define a generative grammar for URIs; that task is performed by the individual specifications of each URI scheme. [STANDARDS-TRACK]

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.