passports.gov
A federal .gov domain running a live identity / sign-in portal at auth.passports.gov.
Why it’s on the map
Passports are issued by the State Department — but passports.gov is registered to the Executive Office of the President, the cluster of offices that directly support the President. A passport login system owned by the White House rather than the issuing department is one of the clearest threads in the federal-identity story. → passports-eop-owned
Note
Fast-moving: subdomains appear and change within days. Reverify CISA ownership and live DNS before citing as current.