track usps item allows customers to check the status of their USPS shipments using the tracking number provided at the time of shipping. USPS offers an easy-to-use tracking system on their website, where customers can enter their tracking number to view updates on the location of their package, estimated delivery date, and any delays that may occur. USPS tracking provides real-time information on packages shipped via services like Priority Mail, First-Class Mail, and Express Mail.