An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

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Preferred Term:

world wide web

a collection of internet sites that offer text and graphics and sound and animation resources through the hypertext transfer protocol.
Concept Schemes:
Broader Concept:
Entry Terms:
  • WWW (world wide web)
  • web technologies
  • web tools
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RDF/XMLCreated 2006-01-19, last modified 2018-01-18