Domains Help

About .ac Domains

Nic.ac (operated by Donuts) is the sponsor and Donuts is our backend provider for the country-code top-level domain name (ccTLD) .ac extensions that represents Ascension and Tristan da Cunha Islands.

Who can register .ac domains?

Anyone can register .ac domain names.

Registration restrictions

When registering a .ac domain, you must follow specific requirements.

  • Must use: 3 - 63 Characters
  • Can use: Letters: a-z, Numbers: 0-9, Hyphens (except in the 1st or last characters of the domain name)
  • Cannot use: Special Characters (e.g., & and #)
  • IDNs: Not supported

Features

Nameserver requirements

  • Must use: 1-13 Nameservers
  • Can use: IPv4, IPv6, DNSSEC

Refunds

For details on refunds, review our refund policy

More info