What does the acronym 'WWW' stand for?

WWW stands for World Wide Web.

Tim Berners-Lee proposed the World Wide Web at CERN in 1989 as a system for linking and accessing information across networked computers. The abbreviation WWW, also written W3, refers to the Web’s collection of interlinked documents and other resources.

The Web is not the same thing as the Internet. The Internet is the underlying global network of networks, while the Web is an information system that uses technologies such as URLs, HTTP, and HTML to publish and retrieve linked resources through browsers.

Berners-Lee had a working browser, editor, server, and web page by the end of 1990. The Web became publicly available beyond CERN in 1991 and was released into the public domain in 1993. A common mix-up is treating “www” as a mandatory website prefix; it is only a traditional hostname convention, and many modern sites omit it.