8trackdisco --- you're lucky you even get that.
With Click N Ship ... most of the time, the post office won't even scan it before it shipped, and all you get is the post office was electronically notified of a 'pending' shipment.
If you pay ... they will scan it, and show that it was accepted at your post office. Then all you get after that, is when it was delivered.
With Delivery confirmation, you get just that ... confirmation 'WHEN' is is delivered.
Nothing 'step by step' in between, as you do with a UPS tracking number.