Hope this is the right forum...I am looking for an external lookup of whois data for my new website. It will need to provide contact info, expiry dates and nameservers etc. It is a Web based Domain management solution. Help users manage their domains, expiry dates, contact info. Can you advise where the most stable feed which can accomodate mass whois lookups c/w the above information and if so is it by xml feed or how is it supplied.

Thanks for your help and any suggestions you could provide.