Portal:Internet/Selected article/34

A Uniform Resource Identifier (URI), formerly Universal Resource Identifier, is a unique sequence of characters that identifies an abstract or physical resource,[1]: 1  such as resources on a webpage, email address, phone number,[1]: 7  books, real-world objects such as people and places, and concepts. In particular, the resource need not be retrievable via the Internet, or any computer network.[1]: 5 

URIs that provide a means of locating and retrieving information resources on a network (like the Internet, an Intranet or a computer file system) are called Uniform Resource Locators (URLs). URLs are therefore a subset of URIs.[1]: 7  Other URIs provide only a unique name, without a means of locating or retrieving the resource or information about it; these are Uniform Resource Names (URNs). The web technologies that use URIs are not limited to web browsers. (Full article...)

  1. 1 2 3 4 Cite error: The named reference rfc3986 was invoked but never defined (see the help page).
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