What Makes a Good Shipment Tracking System?

With online shopping and parcel deliveries increasing, many customers now expect accurate, real-time tracking updates and clear delivery estimates. Lack of visibility often leads to confusion and unnecessary support questions. In your experience, which features matter most in a good tracking system — speed, accuracy, or ease of use? For example, tools like https://postextracking.com.pk/
that offer live status updates and delivery estimates can really improve the customer experience when waiting on a courier shipment.