> USPS is the United States Postal Service: how online stores use it for shipping rates, labels and tracking, the data shared and what GDPR implies. > > Canonical: https://www.flowconsent.com/en/services/ecommerce/usps E-commerce # USPS Preferences · [Official website](https://www.usps.com) USPS (United States Postal Service) is the national postal service of the United States. Online stores integrate it, usually through its APIs or shipping plug-ins, to calculate shipping rates, validate addresses, print labels and show tracking information. These calls generally run from the store's server; when USPS tools or pages are loaded in the browser, USPS may set its own cookies. [Block USPS until consent](https://app.flowconsent.com/auth/sign-up?utm_source=flowconsent.com\&utm_medium=referral\&utm_campaign=ecommerce) · [Scan my site](https://www.flowconsent.com/en/scan) At a glance - Category [E-commerce](https://www.flowconsent.com/en/services/ecommerce) - Consent Preferences - Prior consent Required - Documented cookies 0 Compliance ## USPS and the GDPR USPS is classified as “Preferences”. On a site that targets European visitors, it must only load after the visitor consents, and it must be listed in your cookie policy. Cookies and trackers ## What USPS sets and contacts The cookies of USPS are not documented in the catalog yet. To see what is actually set on your site, run a free scan. 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