List of domain extensions

.au

.au is a country-code extension for Australia, run by .au Domain Administration (auDA). Australian presence required: an Australian citizen or resident, or an organisation registered in Australia.

TypeCountry code
Registry operator.au Domain Administration (auDA)
CountryAustralia
Who can registerRules apply
Australian presence required: an Australian citizen or resident, or an organisation registered in Australia.
DNSSECSigned
RDAP serverhttps://rdap.cctld.au/rdap/
WHOIS serverwhois.auda.org.au
IANA recordiana.org/domains/root/db/au

Registrars that sell .au

Integrated
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All 28 registrars for .au. Other registrars may sell it too.

Look up a .au domain

The .au registry publishes registration data over RDAP. The free domain report reads it and shows a .au domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.

New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.

Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.

Frequently asked questions

Who runs the .au extension?

.au Domain Administration (auDA) is the registry operator for .au, the country-code extension for Australia. The registry keeps the list of every .au name; registrars sell the names to the public.

Can anyone register a .au domain?

Australian presence required: an Australian citizen or resident, or an organisation registered in Australia.

How do I look up who owns a .au domain?

The .au registry publishes registration data over RDAP at https://rdap.cctld.au/rdap/ and over WHOIS at whois.auda.org.au. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.

Is .au signed with DNSSEC?

Yes. The .au zone is signed, so a .au domain can turn on DNSSEC once its registrar adds a DS record.