AusRegistry - .au Registry Provider

Web-Based Domain Availability Check

The Domain Availability Check is an alternative method of checking whether a .au Domain Name is available. It provides an 'Available' or 'Not available' response. The Availability Check is not subject to the regular WHOIS Search blacklisting rules, however excessive use of this service may result in an IP address ban at AusRegistry's discretion.

Please enter your .au Domain Name below:

WHOIS-Based Domain Availability Check

Resellers, whose current systems rely on the WHOIS Search for Domain Availability Checks, can implement the following method to avoid the likelihood of blacklisting. The format of the request is a text string of the Domain Name followed by a `\r\n' as per a standard WHOIS request. The service will then respond with either the string `Available' or `Not Available' depending upon the availability of the Domain Name.

For Example

To check the availability of ausregistry.net.au follow these steps:

  1. Connect to:
         - Address: whois-check.ausregistry.net.au
         - Port: 43
  2. Send the string `ausregistry.net.au\r\n' to the server
  3. The server will respond with `Not Available' and then close the connection.

The above procedure is compatible with standard WHOIS protocol; hence any reseller interface that is built to use WHOIS will be able to use this system as well.

Alternatively, the standard *nix whois command can be used as follows:

whois -h <server address> <domain name>

PLEASE NOTE - THIS SERVICE IS NOT SUBJECT TO THE REGULAR WHOIS SEARCH BLACKLISTING RULES, HOWEVER EXCESSIVE USE OF THIS SERVICE MAY RESULT IN YOUR IP ADDRESS BEING BANNED AT AUSREGISTRY'S DISCRETION.

Any requests to perform additional WHOIS queries should be forwarded to auDA. (Valid reasons do not include the provision of a WHOIS Search on your web site or to check the availability of Domain Names).

Note: This service is for .com.au, .net.au, .id.au, .org.au and .asn.au Domain Names only; it is also only for checking the availability of Domain Names, not hosts or contacts.

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