The Domain Doctor is a DNS diagnostic utility. It can be used to troubleshoot problems with web, DNS and email. If you have a problem with a domain the Domain Doctor should be able to help you find out what's wrong.
The Domain Doctor 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.
Use the secure login form at centralnic.com. Click the link below
At the form don't enter the "www" or the "http://" part of the name
For example for the name : "www.web.gr.com" enter "web.gr.com" (without quotes)