.com.au WHOIS and .com.au availability are two different checks
Sagar Sethi is the founder of Web Hosting People and Xugar, and the author of The Business Knight.
Published 19 October 2026 Last reviewed 19 October 2026 Domains and DNS
A .com.au WHOIS lookup tells you who holds the name and what the .au registry publishes about it. An availability check tells you whether the registry holds a record for that name at all. One answers who, the other answers whether, and neither answers the other question.
The two get used interchangeably, which is where much of the confusion about .com.au names starts. This is what each check actually returns, and what to do when they appear to disagree.
What each check answers
A WHOIS lookup reads the public registration record for a name that exists. It gives you the registrar the name is registered through, the registrant details where the registry publishes them, the name servers answering for it, the status codes set on it, and the dates where they are published.
An availability check asks a narrower question: does the registry hold a registration for this string. If it does, the name is taken. If the registry says, in its own words, that it holds no such name, you get an available result.
| Question | The check | The answer you get |
|---|---|---|
| Who holds this name | WHOIS lookup | Registrant, organisation, ABN and licence eligibility on .com.au |
| When does it expire | WHOIS lookup | Not published by the .au registry |
| Is anything blocking it | WHOIS lookup | Status codes, such as a transfer lock or a hold |
| Is the name free | Availability check | Available, or taken |
Run in the right order, the second check is the shorter one. If the name is free, there is no record to read.
The .au record you get, and the two fields it does not have
The .au registry publishes more about the holder than a .com record does. It publishes the registrant name, the registrant organisation, the ABN and the licence eligibility, and a lookup shows all four. That is why a .com.au record will usually name the business behind a name, while a .com lookup will usually name nobody at all.
What it does not publish is the two dates people most want. There is no registration date and no expiry date in the public record for a .au name. You see the last time the record changed instead. That single omission decides several things you cannot learn from a .com.au WHOIS, including how long the name has been held and when it comes up for renewal.
So a .com.au record is good at identity and useful on locks, and silent on time. If time is the question, a WHOIS lookup is the wrong tool.
What an available result actually means
An available result means the registry has no registration record for that name. Normally that means it is free to register, and normally is the operative word.
It is not a hold. Nothing reserves the name for you between the search and the checkout, and registries update continuously, so a name can change shortly after you look. A domain is only yours once an order is placed and paid for. A search that sits in an open tab overnight is evidence of nothing by morning.
Availability is not eligibility
This is the second place the two ideas get mixed up. A name can be genuinely available and still not available to you.
For .com.au you need an Australian presence and a close and substantial connection to the name. That is met through a registered business name, a company name, a trade mark, or a name closely matching an activity you carry on. An ABN alone shows presence, not connection, so it does not give you a right to any particular string.
The registry record does not help here either. It shows what an existing holder qualified under, not what you would qualify under. The rules for the asking side are set out in how .com.au registration and eligibility work, and they are worth reading before you get attached to a name.
Why the same name can be taken on .com.au and free on .au
Each extension is its own registration. A business holding the .com.au has not thereby registered the .au or the .net.au, and each can be held by a different party on the same day.
That cuts both ways. A name that looks taken because a business is trading on the .com.au may well be free on .au, and a name that is free on .com.au may already be held on another Australian extension by somebody else. If a customer might type the shorter version, or guess the .net.au instead, check the variants on the Australian domain extensions we register rather than only the one you intend to buy.
Why a name can be free and still not licensable
Availability says the registry holds no record. It says nothing about whether the name can be licensed at all.
.au names need at least two characters, letters, numbers and hyphens only, no leading or trailing hyphen, and no hyphens in the third and fourth position. Some names sit on the reserved list and cannot be licensed by anyone, whatever their eligibility. A name can pass an availability check and fail every one of those tests at checkout, which is why the search box applies them as you type.
There is also the licence itself to keep in mind. A .com.au is licensed, not owned in the property sense, and the policy is explicit that there are no proprietary rights in the domain system. Eligibility has to continue for as long as you hold the name, which is why a lapsed business name registration becomes a problem at renewal.
Why the answer moves
Three things make a .com.au answer age quickly.
The first is the twelve minute window. A lookup result is held for twelve minutes so a repeat search is quick, and then it is read again, because registries update continuously.
The second is the grace period. A .com.au that lapses stays with its holder through the registry grace period and then returns to the open market, where anyone eligible can register it. A name in that state can look settled one week and be free the next, and because the .au record carries no expiry date, you cannot watch the countdown from a WHOIS lookup.
The third is the status codes. A transfer lock or a hold can be set or cleared, by the holder in the current registrar's panel or by the registrar itself, and each one changes whether the name can move. That matters most when you are buying a name from its current holder rather than registering a free one.
The order to run the two checks in
- Search the name you want. Enter the domain only, with no
https://at the front, and read the extension by extension result. - If it is taken, look up the domain's registration record. The lookup tells you who holds it, which registrar it sits with, and whether anything is locking it.
- If it is free, check the eligibility. Availability without eligibility is a dead end on
.com.au, and the eligibility test is about your business, not the name. - Check the version you did not plan to buy. The shorter
.au, or the.net.au, may already be held, and that is easier to weigh up now than after launch. - Register the name in the right entity. The registrant entered at registration is the legal holder, so it should be the business or the company, not a contractor or a developer.
Frequently asked questions
Is a .com.au WHOIS lookup the same as an availability check? No. A lookup returns the public record for a name that is registered. An availability check asks whether the registry holds a record at all, and returns either an available result or a taken one.
Can I tell when a .com.au expires from a WHOIS lookup? No. The .au registry does not publish registration or expiry dates in its public record. You see the last time the record changed instead.
Does an available result hold the name for me? No. It is not a hold, and a domain is only yours once an order is placed and paid for. The result is also held for twelve minutes and then read again.
If a .com.au is available, can I definitely register it? Not definitely. Availability is not eligibility, and the name also has to meet the rules on length, characters, hyphen position and the reserved list before it can be licensed at all.
Someone is trading on the .com.au. Can I still get the .au? Possibly. Each extension is a separate registration, so check the one you want rather than assuming it follows the other.
Does the record tell me what the holder qualified under? On .com.au it does. The registry publishes the registrant name, the organisation, the ABN and the licence eligibility.
Check both, then commit
The lookup answers who and the search answers whether. For a .com.au, add the third question the record cannot answer: whether you qualify for the name yourself. Those three together settle a domain decision, and none of them takes longer than a coffee.
Once a name is confirmed and registered, the Australian shared hosting plans include the certificate the domain needs to serve securely, and most customers run the two together.
If a record or a search result leaves you unsure which step applies, phone 1300 565 610, 9am to 5pm Monday to Friday, or email hello@webhostingpeople.com.au, answered 24/7.