Does anyone know if .cc and .io are the same thing/mixer? Registrars are different and .cc is a much younger domain than .io.
Real one should be .io domain, but they sometimes use punycode to replace letters in domain.
Watch out for scam mixers, they are getting created every day and they look very similar to original website.
I suggest checking out Bitlist.co website, you will find plenty of useful services including mixers.
https://bitlist.co/