A top-level domain (TLD) is the last segment of a domain name, the part that follows after the final dot of a domain name. For example, google.com, .com is the Top-level domain. A top-level domain recognizes a certain element regarding the associated website, such as its objective (business, government, education), or the geographical area from which it originated. TLDs themselves are also classified into one of several groups and some of them are reserved for specific situations.