The first web-server software, created by CERN for the World Wide Web, was CERN httpd.
Tim Berners-Lee developed CERN httpd in 1990 while building the first World Wide Web system at CERN. The program could serve HTML documents and other files over HTTP, allowing a browser to retrieve information from a networked computer.
CERN httpd is sometimes confused with the first web server itself. The first web server was a NeXT computer at CERN, while CERN httpd was the software running on it. The project helped demonstrate that hypertext could work across the internet rather than only on one computer.
CERN httpd was later superseded by more capable servers, including NCSA HTTPd and Apache HTTP Server. Apache eventually became one of the most widely deployed web-server platforms, but it was not the original CERN software.