
5 March 2026 marks 40 years of .au – a signal of trust online that connects millions of local and global internet users to .au websites and email addresses.

As digital technologies have transformed our lives, .au has supported Australians and Australian businesses with a trusted, recognisable online identity. In 2026, four decades since its introduction, .au is more important than ever, providing a stable foundation for innovation and emerging technologies to support Australia’s digital future.
History of .au




















How .au supports all Australians

.au at 40: securing Australia’s digital future
This year marks 40 years of the .au domain. In our latest CEO update, Bruce Tonkin explores the importance of .au over the last four decades and why building trusted digital infrastructure in a complex, evolving digital environment matters more than ever.
From the CEO: building momentum at auDA in 2026
As 2026 kicks into gear, auDA CEO Bruce Tonkin provides his first update of 2026, taking a look at the year ahead.






