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Subject	Validity Period	Issuer	CT Log
usps.comUnited States Postal Service	7 monthsNot Before: May 28, 2026, 00:00:00 Not After: Dec 12, 2026, 23:59:59	Sectigo Public Server Authentication CA OV R36Sectigo Limited	Nimbus2026
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before May 28, 2026, 00:00:00 Not After Dec 12, 2026, 23:59:59 Issuer Common Name (CN) Sectigo Public Server Authentication CA OV R36 Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Nimbus2026
*.usps.comUnited States Postal Service	1 yearNot Before: Nov 24, 2025, 00:00:00 Not After: Nov 23, 2026, 23:59:59	DigiCert Global G3 TLS ECC SHA384 2020 CA1DigiCert Inc	Tiger2026h2
Subject Common Name (CN) *.usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Nov 24, 2025, 00:00:00 Not After Nov 23, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G3 TLS ECC SHA384 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Tiger2026h2
*.usps.comUnited States Postal Service	1 yearNot Before: Nov 24, 2025, 00:00:00 Not After: Nov 23, 2026, 23:59:59	DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc	Xenon2026h2
Subject Common Name (CN) *.usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Nov 24, 2025, 00:00:00 Not After Nov 23, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G2 TLS RSA SHA256 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Xenon2026h2
usps.comUnited States Postal Service	1 yearNot Before: Nov 17, 2025, 00:00:00 Not After: Nov 16, 2026, 23:59:59	DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc	Sphinx2026h2
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Nov 17, 2025, 00:00:00 Not After Nov 16, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G2 TLS RSA SHA256 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Sphinx2026h2
usps.comUnited States Postal Service	1 yearNot Before: Nov 17, 2025, 00:00:00 Not After: Nov 16, 2026, 23:59:59	DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc	Sphinx2026h2
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Nov 17, 2025, 00:00:00 Not After Nov 16, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G2 TLS RSA SHA256 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Sphinx2026h2
usps.comUnited States Postal Service	1 yearNot Before: Oct 24, 2025, 00:00:00 Not After: Oct 24, 2026, 23:59:59	DigiCert Global G3 TLS ECC SHA384 2020 CA1DigiCert Inc	Oak2026h2
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Oct 24, 2025, 00:00:00 Not After Oct 24, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G3 TLS ECC SHA384 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Oak2026h2
usps.comUnited States Postal Service	1 yearNot Before: Oct 24, 2025, 00:00:00 Not After: Oct 23, 2026, 23:59:59	DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc	Argon2026h2
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Oct 24, 2025, 00:00:00 Not After Oct 23, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G2 TLS RSA SHA256 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Argon2026h2
usps.comUnited States Postal Service	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Oct 21, 2026, 23:59:59	DigiCert Global G3 TLS ECC SHA384 2020 CA1DigiCert Inc	Xenon2026h2
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Oct 21, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G3 TLS ECC SHA384 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Xenon2026h2
usps.comUnited States Postal Service	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Oct 20, 2026, 23:59:59	DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc	Xenon2026h2
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Oct 20, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G2 TLS RSA SHA256 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Xenon2026h2
usps.comUnited States Postal Service	7 monthsNot Before: Mar 2, 2026, 00:00:00 Not After: Sep 16, 2026, 23:59:59	DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc	Wyvern2026h2
Subject Common Name (CN) usps.com Organization (O) United States Postal Service Country / Territory (C) United States Validity Period Not Before Mar 2, 2026, 00:00:00 Not After Sep 16, 2026, 23:59:59 Issuer Common Name (CN) DigiCert Global G2 TLS RSA SHA256 2020 CA1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Wyvern2026h2

Subject

Validity Period

Issuer

CT Log

usps.comUnited States Postal Service

7 monthsNot Before: May 28, 2026, 00:00:00
Not After: Dec 12, 2026, 23:59:59

Sectigo Public Server Authentication CA OV R36Sectigo Limited

Nimbus2026

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: May 28, 2026, 00:00:00
Not After: Dec 12, 2026, 23:59:59

Issuer

Common Name (CN): Sectigo Public Server Authentication CA OV R36
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Nimbus2026

*.usps.comUnited States Postal Service

1 yearNot Before: Nov 24, 2025, 00:00:00
Not After: Nov 23, 2026, 23:59:59

DigiCert Global G3 TLS ECC SHA384 2020 CA1DigiCert Inc

Tiger2026h2

Subject

Common Name (CN): *.usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Nov 24, 2025, 00:00:00
Not After: Nov 23, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G3 TLS ECC SHA384 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Tiger2026h2

*.usps.comUnited States Postal Service

1 yearNot Before: Nov 24, 2025, 00:00:00
Not After: Nov 23, 2026, 23:59:59

DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc

Xenon2026h2

Subject

Common Name (CN): *.usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Nov 24, 2025, 00:00:00
Not After: Nov 23, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G2 TLS RSA SHA256 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Xenon2026h2

usps.comUnited States Postal Service

1 yearNot Before: Nov 17, 2025, 00:00:00
Not After: Nov 16, 2026, 23:59:59

DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc

Sphinx2026h2

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Nov 17, 2025, 00:00:00
Not After: Nov 16, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G2 TLS RSA SHA256 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Sphinx2026h2

usps.comUnited States Postal Service

1 yearNot Before: Nov 17, 2025, 00:00:00
Not After: Nov 16, 2026, 23:59:59

DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc

Sphinx2026h2

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Nov 17, 2025, 00:00:00
Not After: Nov 16, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G2 TLS RSA SHA256 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Sphinx2026h2

usps.comUnited States Postal Service

1 yearNot Before: Oct 24, 2025, 00:00:00
Not After: Oct 24, 2026, 23:59:59

DigiCert Global G3 TLS ECC SHA384 2020 CA1DigiCert Inc

Oak2026h2

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Oct 24, 2025, 00:00:00
Not After: Oct 24, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G3 TLS ECC SHA384 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Oak2026h2

usps.comUnited States Postal Service

1 yearNot Before: Oct 24, 2025, 00:00:00
Not After: Oct 23, 2026, 23:59:59

DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc

Argon2026h2

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Oct 24, 2025, 00:00:00
Not After: Oct 23, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G2 TLS RSA SHA256 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Argon2026h2

usps.comUnited States Postal Service

1 yearNot Before: Oct 21, 2025, 00:00:00
Not After: Oct 21, 2026, 23:59:59

DigiCert Global G3 TLS ECC SHA384 2020 CA1DigiCert Inc

Xenon2026h2

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Oct 21, 2025, 00:00:00
Not After: Oct 21, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G3 TLS ECC SHA384 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Xenon2026h2

usps.comUnited States Postal Service

1 yearNot Before: Oct 21, 2025, 00:00:00
Not After: Oct 20, 2026, 23:59:59

DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc

Xenon2026h2

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Oct 21, 2025, 00:00:00
Not After: Oct 20, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G2 TLS RSA SHA256 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Xenon2026h2

usps.comUnited States Postal Service

7 monthsNot Before: Mar 2, 2026, 00:00:00
Not After: Sep 16, 2026, 23:59:59

DigiCert Global G2 TLS RSA SHA256 2020 CA1DigiCert Inc

Wyvern2026h2

Subject

Common Name (CN): usps.com
Organization (O): United States Postal Service
Country / Territory (C): United States

Validity Period

Not Before: Mar 2, 2026, 00:00:00
Not After: Sep 16, 2026, 23:59:59

Issuer

Common Name (CN): DigiCert Global G2 TLS RSA SHA256 2020 CA1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Wyvern2026h2

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