http://mixeroyubx5g5yxaucsxcd767vn2lnujuuz2dh53quwabukhrok2ekid.onion/about
When
users make transactions, Mixero protects your privacy by mixing
transactions from multiple users at once, different wallets are
used as gateways and never reused so that a user cannot recover
previously mixed funds. Users may have the impression of being
able to easily track their transaction after using Mixero,
however, the origin of the funds obtained is indeed hidden and
confidential.