http://lelsvupqzna72r6eeo6lhvysq6c2b4eswpsy27svuv6pumocg42ts7id.onion
Though this is the easiest security feature to bypass, it’s still the most commonly
checked, and thus the one you should have a good idea of. We’d even go as far as
to recommend getting a detection pen yourself and seeing the difference by
marking and dollar bill, and marking something such as an envelope.