The first Web site built was at CERN and was first put online on 6 August 1991 by Timothy John Berners-Lee.The first website was info.cern.ch. It was an internal page used at CERN, where Tim Berners Lee invented HTML. By the way, the Internet was created long before the 90's, it first appeared in 1969 as a DARPA project. The Web came in the 90's.