TLD – top-level domain

Short for top-level domain, and refers to the suffix attached to Internet domain names. There are a limited number of predefined suffixes, and each one represent a top-level domain. Current top-level domains include:

  • com– commercial businesses; this is the most common TLD
  • gov– U.S. government agencies
  • edu– Educational institutions such as universities
  • org– Organizations (mostly nonprofit)
  • mil– Military
  • net– Network organizations
  • ca– Canada
  • th – Thailand
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