.com.au WHOIS lookup: how old is this domain?
.au WHOIS shows who holds a domain, but not when it was registered. Enter any .au domain to see when it first appeared, a possible business match and any lookalikes.
What .au WHOIS shows
auDA's public WHOIS for a .com.au, .net.au, .org.au or .au domain shows:
- who holds the licence, usually a business name with its ABN or ACN;
- the registrar it was registered through;
- its status and nameservers;
- a "last modified" date.
For registrant details, use auDA's own lookup. It's the official source.
The date it leaves out
Unlike .com, .au WHOIS doesn't show when a domain was created, renewed or when it expires. auDA's WHOIS policy withholds those dates from public lookups, and bulk or automated lookups aren't allowed.
That's why generic "domain age" tools show nothing for .au, or show the "last modified" date, which changes whenever a record is updated and isn't the age of the domain.
First seen in certificate records
Every publicly trusted HTTPS certificate is recorded in public Certificate Transparency logs. We keep that history back to 2013 for about 4.7 million .au domains.
The date a domain got its first certificate is when it was first seen in use. The domain may have been registered earlier, but it existed by at least that date, which is usually what you need to know.
What the check adds
- First seen: the date of the domain's first certificate, and how many it has had since.
- Possible business match: an ABN-registered business whose name matches the domain. A name match is a lead, not proof of ownership.
- Lookalikes: whether the name is a near copy of an established .au domain, such as one letter off or another namespace.
- Risk signals: for newer domains, an AI check of the website, hosting and email setup, with its reasons.
When the age matters
A new domain isn't a problem by itself: businesses launch new sites every day. It matters when it comes with something else:
- an invoice or "new bank details" from a domain that first appeared weeks ago;
- a shop or login page on a domain that's one letter off a well-known name;
- a site claiming to be an established company whose domain is days old.
Questions
Is this a WHOIS service? No. We don't query the .au registry. We show the first-seen date from public certificate records, which .au WHOIS doesn't publish. For registrant details, use auDA's WHOIS.
Can I see who owns a .com.au domain? auDA's WHOIS shows the licence holder. Our check shows a possible business match from the ABN register, which can help, but it's matched by name and isn't proof.
Why does a domain show no history? It has never had a public HTTPS certificate, or it's brand new. Be cautious if it claims to be an established business.