The USPS website corresponds to the United States Postal Service. The website provides different services and informations, about all what concerns posts and even something more. Here you can find zip codes, you can calculate postage and print shipping labels, you can schedule a pick-up and locate a post office, and then you can also track and confirm by email your delivery. The USPS website makes very easy to verify the delivery status of your mailing; just click on the link of your delivery service (Global Express Guaranteed, Express Mail International, Priority Mail International, etc.) and you'll find out how easy it is to check the current status of the mailing.
If you have to communicate the change of your address, you can do it also through USPS website! This operation is safe and the website guarantees the safeguard of your personal information, that you'll provide for the identity verification. This safeguard costs only 1 $ that will be charged to your credit card.