How do I track a certified letter through USPS?

Related questions

1. Does tracking cost extra USPS?
2. Does USPS have a tracking number?
3. Is Amazon going to put UPS out of business?
4. Can you mail medication through USPS?
5. How do I track my Amazon package in real time?
6. How do I track my package with Google Maps?
7. Can you track certified mail by address?
8. Can you track Amazon delivery driver?
9. How long will it take for my package to arrive USPS?
10. Will Amazon keep using USPS?

Tags

1. #certified
2. #letter
3. #tracking
4. #number
5. #mailed
6. #office
7. #labels
8. #confirm
9. #scans
10. #receipt
11. #updated
12. #daily
13. #signature
14. #account
15. #track
16. #using
17. #forms
18. #article
19. #website
20. #reports