lucy24 - 6:37 pm on Oct 16, 2012 (gmt 0) [edited by: lucy24 at 6:44 pm (utc) on Oct 16, 2012]
You're better off checking with your own eyeballs using something like Firefox's Live Headers, or equivalent for other browsers. Request any given name and you should see what happens. (In the case of FF you will also see an appalling number of side requests to google-related functions. Later on, you can have fun fine-tooth-combing the browser prefs to make sure they are only doing what you want and nothing that you don't.)
Each individual domain should give you one 200 version and one or more 301 versions, depending on how many variations you try.
Edit: The link you gave-- which may or may not survive the next moderator visit-- gave me a steady stream of 403's, illustrating something I commented on only yesterday in an unrelated thread :) The tool lives in 174.133, ThePlanet; I'd have to unblock it for the tool to work. Except that you don't need to, because they thoughtfully show you the list of forms they try. With and without www, with assorted extensions, with and without "index.something". Good list, in principle.
[edited by: lucy24 at 6:44 pm (utc) on Oct 16, 2012]