If you have your own name server you can forward all requests to our non-authoritative DNS cache farm:
The DNS farm maps to sites in each capital city in Australia, with each site having a redundant load balancing cluster. Queries will be directed to the server farm from your network via the most efficient route.
Authoritative DNS servers for Primary and Secondary DNS Hosting:
Do not forward requests to the authoritative name servers as it places extra load on the servers unnecessarily. Query recursion has been disabled on dns0 and will be disabled on dns1 in the near future, therefore results may be incorrect or unavailable for domains they are not authoritative for.
If you are hosting your domain with Optus, please make sure you include NS records for both authoritative name servers, even if you are only able to list one of them in the delegation form provided by your domain registrar.