CERN httpd (later also known as W3C httpd) was a web server (HTTP) daemon originally developed at CERN from 1990 onwards by Tim Berners-Lee and others[1]. It was the first ever web server software[2].

Version 0.1 was released in June 1991[3]. The development of CERN httpd was later taken over by W3C, with the last release being version 3.0A of 15 July 1996[1].

CERN httpd was originally developed on a NeXT Computer running NeXTSTEP, and was later ported to other Unix-like operating systems and OpenVMS. It could also be configured as a web proxy server[1][2].