A ccTLD, or country code top-level domain, is a two-letter domain extension that represents a specific country or territory. For example, ".uk" is the ccTLD for the United Kingdom, while ".ca" is for Canada. These domains help identify websites associated with particular countries, making it easier for users to find local content. ccTLDs are often used by businesses and organizations to establish a local presence online. They can also enhance search engine optimization (SEO) for regional audiences. Many countries have their own regulations regarding the registration and use of ccTLDs, which can vary significantly.