We have a unique way of finding Keyword Suggestions in Web Stats Checkers. We first do a search for all the domains of the keywords. We then use all of the domains and retrieve their keywords. We then display the number of Keywords ordered by the most overlapping keywords. This is the score we are referring to on the Keyword Research Page.

You can find our Keyword Research Page here:
http://www.webstatschecker.com/keyword-research