What Does Country Code Top-Level Domain (ccTLD) Mean?
A country code top-level domain (ccTLD) is a top-level domain name that is used to define the domain for a particular country or a geographical area. Every country has a domain name reserved for it; this is generally denoted by a ccTLD, which is generally two letters long.
Techopedia Explains Country Code Top-Level Domain (ccTLD)
Every country, geographical area, sovereign state or a dependent territory has its own two-letter code that defines its country code top-level domain.