track a order usps allows you to monitor the status of a shipment sent via USPS. By using the tracking number provided at the time of shipment, you can check the progress of your package from the moment it is shipped until it is delivered. USPS offers a variety of tracking services, including First-Class Mail, Priority Mail, and Express Mail, with different levels of tracking details. You can track USPS orders online through the USPS website or by using their mobile app.