Domain name extensions are technically referred to as TLD, which stands for top level domain. A TLD is basically the highest category level that classifies pages on the web. Obviously, as the internet grows so does the number and type of domain extensions. There are several “generic” domain extensions (such as .com & .net) and many new extensions that classify the types of sites and their locations.

A few examples are:

• .us classifies the country (in this case the United States) that relates to the particular site.
• .int classifies organizations that are endorsed by an international treaty.
• .travel classifies travel related organizations.
• .info classifies information.
• .edu classifies school sites.
• .org classifies sites belonging to an organization.