- Home
- Domain Extensions
- .COM.AU
.COM.AU Domain Registration & WHOIS
Analyze registry operators, character limits, IDN support status, and specific registration guidelines for .COM.AU domains.
Registration Eligibility
Recently Queried Domains
Overview & Registration Guidelines
The .COM.AU domain extension is Australia's primary commercial second-level domain, managed by auDA (au Domain Administration). One of the most strictly regulated commercial ccSLDs globally — registration requires a valid Australian Business Number (ABN), Australian Company Number (ACN), or a registered trademark matching the domain name. This eligibility policy ensures that .com.au domains are held by legitimate Australian businesses, contributing to high consumer trust. Hosts over 3 million active registrations and is the dominant extension for Australian e-commerce and corporate web presence. 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. Registration is completely open and unrestricted globally to individuals and organizations.
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.