// Example with AfterShip API (popular tracking service) async function trackPackageReal(trackingNumber) { const response = await fetch('https://api.aftership.com/v4/trackings', { method: 'POST', headers: { 'Content-Type': 'application/json', 'aftership-api-key': 'YOUR_API_KEY_HERE' }, body: JSON.stringify({ tracking: { tracking_number: trackingNumber } }) }); const data = await response.json(); // Process and display real tracking data } // Or use carrier-specific APIs: async function trackUPS(trackingNumber) { // UPS API implementation } async function trackFedEx(trackingNumber) { // FedEx API implementation }