If your browser doesn't handle redirects right it should be happier with:
http://frcdb.tk/m/
I'm guessing that you just happened to try accessing it during the second or so it takes to update the site- if it happens again just reload and it should work fine.
We've mostly tested it under Chrome, so issues elsewhere might pop up. Firefox seems to work fine, and basic tests under IE8 showed no problems, so browser shouldn't matter.
Anyway, hopefully it can be a great resource for everyone! We've got a ton of features still in the works, so expect to see more soon.