Whether you are looking to buy a domain that is already taken, verify the owner of a website, or check whether a domain has been registered by a competitor, WHOIS is the tool you need. Australian Hosting Solutions helps Australian businesses manage their domain ownership information and stay on top of domain security — and understanding WHOIS is a key part of that.
What Is WHOIS?
WHOIS (pronounced “who is”) is a publicly accessible directory of domain name registration information. When you register a domain, certain details about the registrant are added to the WHOIS database — including the registrant’s name, contact information, the registrar (the company managing the domain), and technical details about how the domain is set up.
Think of it like a business register for domain names. It lets anyone look up basic information about who controls a domain — though the level of detail visible depends on the domain extension and whether privacy protection is active.
What Information Does WHOIS Show?
| WHOIS Field | Always Visible | Visible If Not Private |
|---|---|---|
| Domain Status | Yes | |
| Registration Date | Yes | |
| Name Servers | Yes | |
| Expiry Date | For most global domains | Not shown for .au domains (auDA rule) |
| Registrant Name | Yes (if not private) | |
| Contact Details | Yes (if not private) | |
| Registrar Information | Yes |
How Is WHOIS Different for Australian .au Domains?
Australian .au domains are governed by auDA (the .au Domain Authority), which sets strict privacy rules that differ from many international registries. The key differences for .au and .com.au domains are:
- Expiry dates are not shown in public WHOIS. Unlike .com or .net domains, Australian domain expiry dates are not publicly visible through WHOIS. The only way to check your own expiry date is to log in to your registrar account.
- Privacy protection works differently. For .au domains, businesses are generally required to have their contact information publicly visible. Individual registrants have more privacy options.
- auDA oversight means stricter governance. The auDA enforces eligibility rules for .au domains — registrants must have a genuine connection to Australia. WHOIS for .au domains reflects this more regulated environment.
How to Do a WHOIS Lookup for an Australian Domain
- Go to the official auDA WHOIS site at
whois.auda.org.au. - Enter the full domain name including the extension (e.g.
yourbusiness.com.au). - Review the results, which will include domain status, name servers, registrar information, and any publicly available registrant details.
For .com or .net domains, standard WHOIS lookup tools at registrars or ICANN’s WHOIS service will show more information including expiry dates.
What If the Domain Has Privacy Protection?
If a domain owner has enabled privacy protection, WHOIS will show proxy or redacted contact information instead of the registrant’s real details. This is common for .com and .net domains. Australian Hosting Solutions includes domain privacy protection on eligible domains — so your personal contact details are not publicly visible to anyone who runs a WHOIS search.
If you need to contact the owner of a domain that has privacy protection, your options are: use the website’s contact form directly, contact the registrar’s abuse team if you have a legitimate reason, or for disputes involving .au domains, contact the auDA complaints and disputes department.
Advanced WHOIS: Bulk Lookups and Monitoring
Bulk WHOIS lookups let you check ownership, registration dates, and status for multiple domains at once. Useful for market research, competitor analysis, or managing a portfolio of your own domains.
WHOIS monitoring sets up alerts when specific domain records change — particularly useful if you are tracking a domain you want to acquire, or monitoring your own domain for unauthorised transfer or ownership change attempts.
If you are managing multiple domains for your business, our business web hosting plans include domain management tools that make it straightforward to track renewal dates, ownership records, and DNS settings for all your domains in one place. Pair that with our email hosting and you have everything under one roof. Call (02) 9199 8787 to discuss what your business needs.
Frequently Asked Questions
Can I find out who owns a .com.au domain using WHOIS?
Yes, for most .com.au domains registered to businesses. Australian businesses are generally required by auDA rules to have their registrant information publicly visible. Individual registrants may have more privacy. Use the auDA WHOIS service at whois.auda.org.au to look up .au domain ownership.
Why doesn’t WHOIS show the expiry date for my .au domain?
auDA’s privacy rules for Australian .au domains hide expiry dates from public WHOIS results. This is specific to .au domains. To check your own .au domain expiry date, log in to your registrar account — that is the only reliable source.
Is WHOIS information accurate and up to date?
WHOIS data is only as current as what registrants have submitted. Old contact details, outdated addresses, and stale information are common — particularly for domains that have not been renewed or transferred recently. For legal or dispute purposes, treating WHOIS as a starting point rather than a definitive source is advisable.
How can I protect my personal information in WHOIS?
For eligible domains (particularly .com and .net), you can enable domain privacy protection, which replaces your personal contact details in WHOIS with proxy information. Australian Hosting Solutions includes domain privacy protection for eligible domains. For .au domains, the level of privacy available depends on auDA’s rules for your registrant type (business vs individual).