There's no way really, as the hash list passed around is incomplete. Since it is incomplete, any such check would be in vain (just because you're not on the incomplete list doesn't make you safe, since your password might already be cracked regardless).
A word of warning BTW: Do not enter you password to any "online checker". Such scams will inevitably pop up soon after incidents like this. Many will happily give out their passwords to such services.. .. uh oh.
Man, they don't waste any time do they?
