This website is so unrealistic.
Sure a 1 character may take a nano-second to be guessed, however you have to calculate how long just one webrequest would take. And then as botmaker mentioned, there is a limit on how many times you can try to guess.
A six character password that this site claims to be crackable in 11 minutes, would in reality, take weeks.
Let's not forget that nobody here, even if they knew how to, would waste time cracking your realm of the mad god, a flash based simplistic, mmorpg password.
Let's get real. If they wanted it so bad, they would do it in an actually logical way.