It's a country-code top-level domain (ccTLD), meaning it's specifically assigned to websites based in Australia.
For example, a website with the address "www.example.au" is most likely registered in Australia.
It's a country-code top-level domain (ccTLD), meaning it's specifically assigned to websites based in Australia.
For example, a website with the address "www.example.au" is most likely registered in Australia.