related uuid ../code/conceptPage.scroll id uri name URI appeared 2005 creators Tim Berners-Lee and Roy Thomas Fielding and Larry Masinter tags standard schema standsFor Uniform Resource Identifier oldName Universal Resource Identifier paper https://datatracker.ietf.org/doc/html/rfc3986#section-1.1 description A URI is a unique sequence of characters that identifies an abstract or physical resource, such as resources on a webpage, mail address, phone number, books, real-world objects such as people and places, concepts. supersetOf url wikipedia https://en.wikipedia.org/wiki/Uniform_Resource_Identifier