What characters can be used in domain names?

Domain names can have up to 63 characters. You could even choose something like can-have-up-to-63-characters.com.au for your domain name. You will sometimes find references to 67 characters in domain names. This includes the dot and the letters c-o-m as an additional 4 characters.

The valid characters for use in all domain name are:

- any of the letters a to z (for example, abcdefg.com.au)
- any numbers 0 to 9 (for example, 123.com.au)
- you may also use a hyphen (-) (for example, place-hyphens-here.com.au)
- the domain can be a combination of numbers, letters and hyphens
- the domain can begin and end in a number (for example, 9to5.com.au)