TLD stands for top-level domain. It is the final part of any domain like .com, .org, or .gov. ccTLD stands for country-code top-level domains. It is a sub-category of TLDs that are used to identify a particular country. For example, .co.uk, .de, .mx, and .fr are all ccTLDs. gTLD stands for generic top-level domain. gTLDs are the most common type of domain name. In part because this category includes .com domains – which have more registrations than all of the ccTLDs combined. Historically, the main gTLDs were .com, .org, .net, .edu, .gov, and .mil, but the number of available gTLDs has been expanded with the result that there are now hundreds of available gTLDs including .online, .xyz, and .name.