MyDNSCheck.com is a DNS diagnostic utility. It can be used to troubleshoot problems with your domain, web, DNS and email. If you have a problem with a domain this should be able to help you find out what's wrong.
This tool checks each step in the chain that links hostname to IP address: from the DNS root, through the registry, to the end server. If it finds a problem it flags it for attention.
Copyright © Blacknight Solutions 2009, based on code from CentralNIC.