A '''Generic Top Level Domain''' ('''gTLD''') is an internet domain name extension with three or more characters. It is one of the categories of the top level domain ([[TLD]]) in the Domain Name System ([[DNS]]) maintained by the [[IANA|Internet Assigned Numbers Authority]]. There are currently 21 gTLDs in the [[Root Zone|root zone]] of the Internet and they are categorized as: | A '''Generic Top Level Domain''' ('''gTLD''') is an internet domain name extension with three or more characters. It is one of the categories of the top level domain ([[TLD]]) in the Domain Name System ([[DNS]]) maintained by the [[IANA|Internet Assigned Numbers Authority]]. There are currently 21 gTLDs in the [[Root Zone|root zone]] of the Internet and they are categorized as: |