With a few simple steps you can add real time delivery data to your site. The ReDeTrack server is sent the proof of delivery moments after the signature has been obtained. If a parcel has been scanned onto a delivery truck, the ReDeTrack server is informed of this. In fact for every transaction, the server is informed.
If that customer were to then put their parcel number into your website, they would instantly see the delivered parcel, and its full history.