http://payit2cen3j7qjcyfwlgawk5nfeclttnv34sf6swp65irsadxjqgejqd.onion/tracking.html
Markets have been operated by LE for long periods in the past. Anything you communicate on market unencrypted is visible by prying eyes. If you or the vendor cannot communicate with keys that you store then consider using a trusted pastebin such as privatebin or privnote .