Shipping tracking is a service that allows customers to monitor the progress of their packages as they move from the seller to the buyer. By using a unique tracking number provided by the shipping company, individuals can see real-time updates on the location and status of their shipment. This helps ensure that packages arrive on time and provides peace of mind. Most shipping companies, such as UPS, FedEx, and USPS, offer online tracking tools on their websites or mobile apps. Customers can simply enter their tracking number to view detailed information, including departure and arrival times, as well as any delays that may occur during transit.