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What is a URI?

Lord Venkatappaiah Ammisetty

A URI (Uniform Resource Identifier) is a means of unambiguously locating a resource on the Internet.

There are two types of URIs:

  • URL (Uniform Resource Locator)
  • URN (Uniform Resource Name)
A URL is a pointer to a particular resource on the Internet at a particular location, while a URN is a pointer to a particular resource but without reference to a particular location.

More information can be found in the URI specification at: http://www.faqs.org/rfcs/rfc2396.html