Why .com.au Beats .com for Australian Businesses

In 2024, auDA (the organisation that runs .au domains) commissioned Sagacity Research to survey more than 2,100 Australians - consumers, small business owners, and people thinking about starting a business. The numbers were consistent across all three groups:

• 40% check a .au site first when they're shopping online
• 70% of Australian businesses with a domain already use .au for their website or email

When asked what words they associate with .au, the top three answers were “Australian,” “recognisable,” and “trustworthy.” The reasons people gave for preferring .au were the things you'd hope they'd say: supporting local businesses, being covered by Australian consumer law, and transacting in Australian dollars.

Your domain is doing work before your website even loads.

Here's the bit most people don't know: anyone in the world can register a .com. You don't need to prove anything. You don't need to be a business. You don't even need to be a real person.

A .com.au is different. To register one, you need to be a legitimate Australian entity - that means you need an ABN, an ACN, an Australian registered trademark, or you need to be trading under a registered business name. The domain name itself has to match your business name or be closely connected to it.

In other words, there's a verification step baked into the process. If you see a .com.au, you know someone proved they were a real Australian business before they got it. That's a trust mechanism that .com simply doesn't have.

It's the same reason people feel more comfortable dealing with a business that has a proper ABN on its quotes. Not because the ABN itself stops dodgy behaviour, but because the effort of getting one filters out the people who weren't serious in the first place.

If you're a Gladstone tradie and someone searches “plumber Gladstone” or “sparky Central Queensland,” Google has to decide whose site to show first. One of the signals it uses is whether your domain targets Australian users.

Google has publicly confirmed that country-code domains like .com.au get a ranking boost in local search results. It's not the only factor - your content, your Google Business Profile, your reviews, and a dozen other things all matter - but it's a free head start for local searches.

If your competitor is on a .com and you're on a .com.au, Google treats yours as more locally relevant by default. For a business that lives or dies on local search, that's a free head start you might as well take.

Some people worry that .com.au sounds small or regional, like they're missing out by not being on a .com. The numbers tell a different story.

As of December 2024, there were more than 4.3 million .au domains registered - a record high. .au is the 7th largest country-code domain in the world and the 10th largest top-level domain overall. About 74% of commercial domain registrations in Australia are .com.au, and 3 in 4 Australian small businesses already use a .au domain.

This isn't a niche choice. It's what most of the country is already doing. If anything, being on a .com as an Australian business is the unusual move - and not in a good way.

If you've already got a .com and you're not ready to throw it away, that's fine. You don't have to. But you should do two things:

1. Grab the .com.au version of your domain now. They cost around $15 to $20 a year. That's cheap insurance against someone else registering it and either trading on your name or holding it hostage.
2. Make the .com.au your primary. Point both domains at your website, but set the .com.au as the main one. That's the address that goes on your business cards, your invoices, your Google Business Profile, your email signature. The .com can redirect to it in the background.

The goal is that when someone sees your domain name, the first thing they see is “.com.au” - because that's the thing Australians trust.

Your domain name is one of the first things a potential customer sees. Before they've read your pitch, before they've seen your work, before they know anything about you, they've already made a small judgment about whether you look like a real Australian business or not.

.com.au answers that question before they've even had to ask it. It says you're local, you're verified, and you're the kind of business that bothers to do things properly.

For $15 a year, that's one of the best value for money trust signals you'll send.

Your domain gets them to click. Your website has to earn the rest.