TLD stands for top-level domain. It is the final component of a domain name, like .com. A ccTLD represents a country-code top-level domain and identifies specific countries. For instance, extensions like .co.uk, .de, .mx, and .fr are all ccTLDs. A gTLD, or generic top-level domain, is common among domain names, with .com being the most popular one. In fact, the number of registrations for .com domains surpasses that of all ccTLDs combined. In the past, the primary gTLDs were .com, .org, .net, .edu, .gov, and .mil. However, as time has passed, various extensions have been added to the mix, such as .online, .xyz, and .name, among others.