List of Internet top-level domains

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.[1] IANA also oversees the approval process for new proposed top-level domains for ICANN. As of April 2021, the IANA Root Zone Database listed 1,502 top-level domains, including active, reserved, retired, and special-use domains.[2] By March 31, 2025, the number of actively delegated top-level domains had decreased to 1,264, reflecting removals, retirements, and changes in the root zone database.[3][4][5] As of March 2021, the IANA root database includes 1589 TLDs. That also includes 68 that are not assigned (revoked), 8 that are retired and 11 test domains.[1] Those are not represented in IANA's listing[4] and are not in root.zone file (root.zone file also includes one root domain).[6]

  1. ^ a b "IANA — Root Zone Database". iana.org. Retrieved 31 May 2020.
  2. ^ Root Zone Database. Internet Assigned Numbers Authority. Retrieved April 1, 2021.
  3. ^ The Domain Name Industry Brief, Q1 2025. Domain Name Industry Brief. Retrieved May 27, 2025.
  4. ^ a b "IANA's list of TLDs in machine-readable format". Iana.org. Retrieved 21 October 2014.
  5. ^ "Daily TLD DNSSEC Report". icann.org. ICANN. 31 May 2020. Archived from the original on 25 March 2019. Retrieved 31 May 2020.
  6. ^ "Root Zone file". Retrieved 20 June 2020.
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