.au domain extension

Sponsored by .au Domain Administration (auDA) · Australia (AU) · ASCII .au

Registered domains Updated 10 Jun 2026 · Source: auDA Q1 2026 report

4,000,000

Domains

#16

Worldwide rank

0.94%

Of TLD census

425M

Census universe

.au holds 4,000,000 registered domain names. That makes it the 16th largest TLD by domain count and 0.94% of the global TLD census of 424,986,374 domains we track. By any reasonable measure that is a mid-tier TLD.

Either side of .au on the league table: .fr sits one place above with 4,100,000 domains, and .eu sits one place below with 3,700,000.

Counts are the most recent public figure available from the registry or from ntldstats.com, refreshed weekly. Citation policy.

About .au

The .au domain is Australia's country code top-level domain. It is managed by .au Domain Administration (auDA), a not-for-profit organization based in Melbourne. .au has strict eligibility rules. Registrants must have an Australian presence, such as an ABN (Australian Business Number) or ACN (Australian Company Number), or be a trademark holder or an Australian citizen. Most registrations take place under second-level categories like .com.au, .net.au, or .org.au, each with its own criteria. The domain was first registered in 1986. It went through a redelegation in 2001, which moved management from Robert Elz to auDA. This shift helped open up the namespace for broader Australian community use.

Eligibility & restrictions

Registrants must have an Australian presence (e.g., ABN, ACN, trademark, or citizenship). Specific subdomains have further rules, such as .com.au for commercial entities and .org.au for organizations.

Technical record Source: IANA

ASCII TLD: .au
Display TLD: .au
Type: COUNTRY-CODE
Sponsor: .au Domain Administration (auDA)
Country: Australia

Who Is Online