.com.au TLD audit hub
Australian commercial second-level domain — restricted to Australian-presence commercial entities.
The .com.au namespace is the Australian commercial second-level zone under .au, administered by auDA. Eligibility is restricted to Australian-presence commercial entities — typically requiring an ABN, ACN or trademark registration. Verification is enforced. The namespace has been the dominant identity for Australian businesses for decades and many established brands retain .com.au as their primary domain even after the 2022 launch of direct second-level .au registration. There are roughly 3 million active registrations. DNSSEC is supported. SEO treats .com.au as a strong Australia-bound geotargeting signal. Email deliverability is on parity with major gTLDs; Australian ISPs (Telstra, Optus, TPG) participate in the standard reputation ecosystem. We pay attention to canonicalization between .com.au and .au for businesses that registered both during the 2022 transition window.