jmccormac - 12:24 pm on Jun 10, 2007 (gmt 0) Regards...jmcc
This is also potentially dangerous as the NXDOMAIN (domain not found) traffic from an ISP's nameservers would be valuable to domaintasters and similar. You would be better off trying anything like this with the root nameservers for the TLDs you are searching.
Following disclosure of this alleged practise, when thinking about new domain names for a project, I now don't check each one on any 'whois' service first. Firstly, I put each potential name in the browser to see if it 'resolves' at all,