A good domain name for a business is easy to say and spell, suits the brand and has an ending appropriate to the market. For an Australian business, compare .com.au and .au with any international needs. Check names and trade marks, then register the licence to the eligible legal registrant, with renewal and recovery access controlled by the business.
The short answer
Pick the name people can type after hearing it once, with no hyphens or numbers. In Australia, .com.au is the trusted default, but it has rules: an Australian presence, a commercial entity such as a company or an ABN holder, and a name that matches you or what you sell. Add the matching .com if you may grow overseas, and switch on auto-renew.
The domain mistake that hurts most isn’t a bad name. It’s the wrong owner. The pattern I see most often in takeover work: the domain was registered years ago by whoever built the first site, a contractor engaged for the launch with no ongoing role. When that person moves on, renewal notices go to an inbox nobody reads, and proving the business owns its own name turns into a slow back-and-forth with the registrar. Your website, email and rankings all hang off that one record. Checking who it’s registered to takes five minutes, so do it today.
At handover, check three separate things: the registrant identity, who receives renewal notices and who can recover the account if the usual inbox fails. Use multifactor authentication and a recovery method the business controls independently of the supplier. Auto-renew still needs a valid payment method and someone checking notices.
What makes a good business domain name?
A good business domain name is the brand name itself, or close to it, in a form people can type after hearing it once. It is short, has no hyphens or numbers, avoids words with several spellings, and uses an ending your customers trust. A name that describes what you do can help early, but a distinctive brand ages better.
| Do | Avoid |
|---|---|
| Match your business or brand name | Names that differ from your trading name |
| Keep it short and easy to say | Long phrases and keyword strings |
| Use .com.au or .au for Australian customers | Unusual endings customers do not recognise |
| Check spelling when said aloud | Words with several spellings, such as “4” for “for” |
| Check trade marks before buying | Names close to a competitor’s brand |
| Register to your business (company or ABN holder) | Domains held by a developer or agency |
Caption: Domain name dos and don’ts for businesses.
Should an Australian business use .com.au, .au or .com?
An Australian business serving Australian customers should usually use .com.au, which customers recognise and trust. Direct .au names, such as yourbrand.au, have been available since 2022 and are shorter. A .com suits businesses with international customers. Many businesses register all three and redirect the extras to the main site.
| Ending | Best for | Eligibility |
|---|---|---|
| .com.au | Australian businesses | Australian presence and a commercial entity, such as a company or ABN holder; the name must match the registrant, its trade mark or what it offers |
| .au (direct) | Shorter Australian domains | Australian presence |
| .com | International or global brands | Open to anyone |
| .net.au, .org.au | Specific types of organisation | Australian presence, with namespace-specific rules |
Caption: Common domain endings for Australian businesses. Eligibility summarised from the auDA licensing rules, checked October 2026; check auDA’s rules before registering.
How do you check a domain name is safe to use?
Start by searching the ASIC business names register, IP Australia’s trade mark search and a search engine for the same or similar names. A free domain does not mean the name is free to use. A trade mark owner can challenge a domain that infringes their mark.
These are preliminary checks, not legal clearance. A clean search tells you nobody obvious owns the name. It doesn’t tell you the name is safe from every claim, because trade mark rights can also come from use, similar marks and related goods. If you’re about to spend real money on the brand, ask a trade marks attorney for a clearance search first.
- Search the ASIC business names register.
- Search IP Australia’s trade mark database.
- Search Google for the name and close variations.
- Check social media handles for the same name.
- Only then register the domain.
My guide to registering an ABN and business name covers the business name side.
Do keywords in a domain name help SEO?
Google considers words in domain names among many signals and has a system designed to avoid giving excessive credit to exact-match domains. I would choose a clear name people can remember rather than build a brand around a presumed keyword advantage. A relevant domain is not a shortcut to a ranking.
Keep the business name, domain and public contact details consistent so people can identify the same business across profiles. I treat that as basic brand hygiene, not a promise that an AI assistant will recommend the business.
Who should own your domain name?
Your business should hold the domain licence through an eligible legal registrant. For an Australian company that is normally the company; for a sole trader it may be the individual, and a trust needs its trustee and eligibility checked. Keep the registrant identity distinct from the agency’s technical or billing contact. Under auDA’s licensing rules, eligibility and transfer requirements still apply: a supplier cannot promise an automatic transfer just because your business paid the invoice.
An expired or inaccessible domain can interrupt the website and email and put search visibility at risk. Treat renewal and recovery access as business continuity, not just a design task.
What to do next
- Shortlist three names and say each one aloud to someone who has not seen it.
- Check each against ASIC, IP Australia and a search engine.
- Register the .com.au, and consider the .au and .com versions.
- Register the domain to your business entity, with auto-renew switched on.
- Next, plan your brand assets with my list of online logo makers and your website with my approach to small business website design.
Frequently asked questions
Can anyone register a .com.au domain?
No. A .com.au domain needs an Australian presence and a commercial entity, such as an Australian company or a person or business with an ABN. Citizenship or residency alone is not enough. The name must also match the registrant, for example its business name, its trade mark or a product it sells. Check auDA’s current rules before you register.
Is .au better than .com.au?
Neither is better for search rankings. .com.au is more familiar to Australian customers and has been the standard for business for decades. Direct .au names are shorter and newer. Many businesses keep .com.au as their main domain and register the matching .au to protect the brand.
How long should a domain name be?
As short as possible while still clear. There is no fixed limit that matters for search, but shorter names are easier to remember, type and fit on signs and business cards. Two or three short words is a practical maximum for most businesses.
What if the domain I want is taken?
Consider a different ending, such as .au instead of .com.au, a small change such as adding your location or what you do, or a different brand name. Avoid buying a name that is very close to another business, because it can confuse customers and create legal risk.
