I am sure not many domainers have paid for DomainTools Pro account which cost you $49.95/month. When we find a particular doman is registered by someone and wanted to know what other domains he/she owns and there comes the trouble of $49.95/month which is expensive for one who is not regular user of DomainTools.
I am aware of one service which show up the domains owned by that specific person. Simply visit this link- Change firstname.lastname@example.org with the ID and you will see what other type of domains this owner has.
There are couple of issues I have noticed using their site. If you enter an email address with underscore than it will not display other domains. Instead comes a message “Error 404 Unable to resolve the request”. I tried contacting them but got no response since two months.
The other known issue to me is let’s say a person owns 500 domains and you are trying to figure out what are those 500 domains. I am sorry to inform you this site will display lot less than that. May be 250-300. Very rarely it will display all the domains owned by the person.
I will also share one bonus issue which hasn’t solved yet by them. I am talking about their support. I never got any response from their end. At least to me. I am not sure what they do with the queries received from others.
Have you ever used this site? If yes, how was your experience? If not, just give it a try and would love to hear feedback from you.