A Country Code Top-Level Domain (ccTLD) is a two-letter domain extension that represents a specific country or territory. For example, the United States uses the extension ".us," while Canada uses ".ca." These domains help identify websites associated with a particular nation, making it easier for users to find local content. Each country manages its own ccTLD, often through a designated organization or government body. This management includes setting rules for registration and usage. Some ccTLDs are also used for specific purposes, such as ".tv" for Tuvalu, which is popular for media and entertainment websites.