A Country Code Top-Level Domain (ccTLD) is a two-letter domain extension that represents a specific country or territory. For example, the ccTLD for the United States is .us, while .uk is used for the United Kingdom. These domains help identify websites associated with a particular nation and are often used by local businesses, organizations, and government entities. Each ccTLD is managed by a designated authority within the respective country, which sets the rules for registration and usage. Some ccTLDs, like .de for Germany, are widely recognized, while others may have more restricted access.