When i got fond that usps trackng not working at usps.com , I rush to a website called usps-track.us . They proving seamless services for tracking usps.
I reached their site found best way to tracking usps packages.
1. go to their usps tracking input box of their package tracking page.
2. Put your 22 or 13 digit usps tracking number at usps-track.us
3. USPS Tracking pages redirected their usps package tracking pages that show acturate usps tracking result. Bravo !.
Thanks for Puting my artcles .