.AU Domain Registration & WHOIS
Analyze registry operators, character limits, IDN support status, and specific registration guidelines for .AU domains.
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Overview & Registration Guidelines
The .AU domain extension is .au is the ccTLD of Australia, operated by auDA. Direct .au registrations (example.au) became available in 2022. Second-level domains .com.au, .net.au, .org.au require Australian presence (ABN or ACN). Minimum label: 2, Maximum: 63. IDN not supported. It requires a minimum label length of 2 characters and supports up to 63 characters. It does not support IDN characters, meaning only standard English characters are allowed. The following registration restrictions apply: Most .au SLDs require an Australian Business Number (ABN) or ACN.
To search for who owns a specific domain registered under this extension, you can perform a live query in our WHOIS portal above. The registry operator database will respond in real time with server details, domain status codes, registration/expiry dates, and name server arrays.