list of Internet top-level domains

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This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet. A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. IANA also oversees the approval process for new proposed top-level domains for ICANN. As of February 2026, the IANA root database includes 1593 TLDs. This database also includes 156 that are not assigned (revoked or retired) and 11 test domains, all of which are not represented in IANA's TLD listing nor in the root.zone file (the file also includes one root domain). This number of active TLDs has decreased from 1502 in March 2021, reflecting removals, retirements, and changes in the root zone database.