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1.1.1.1 Resolver query results

Subject	Validity Period	Issuer	CT Log
*.kt.comkt alpha Co., Ltd.	1 yearNot Before: Dec 2, 2025, 00:00:00 Not After: Dec 30, 2026, 23:59:59	GeoTrust TLS RSA CA G1DigiCert Inc	Wyvern2026h2
Subject Common Name (CN) *.kt.com Organization (O) kt alpha Co., Ltd. Country / Territory (C) South Korea Validity Period Not Before Dec 2, 2025, 00:00:00 Not After Dec 30, 2026, 23:59:59 Issuer Common Name (CN) GeoTrust TLS RSA CA G1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Wyvern2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Elephant2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Elephant2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2
www.kt.comKT Corporation	1 yearNot Before: Oct 21, 2025, 00:00:00 Not After: Nov 21, 2026, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Xenon2026h2
Subject Common Name (CN) www.kt.com Organization (O) KT Corporation Country / Territory (C) South Korea Validity Period Not Before Oct 21, 2025, 00:00:00 Not After Nov 21, 2026, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Xenon2026h2

Subject

Validity Period

Issuer

CT Log

*.kt.comkt alpha Co., Ltd.

1 yearNot Before: Dec 2, 2025, 00:00:00
Not After: Dec 30, 2026, 23:59:59

GeoTrust TLS RSA CA G1DigiCert Inc

Wyvern2026h2

Subject

Common Name (CN): *.kt.com
Organization (O): kt alpha Co., Ltd.
Country / Territory (C): South Korea

Validity Period

Not Before: Dec 2, 2025, 00:00:00
Not After: Dec 30, 2026, 23:59:59

Issuer

Common Name (CN): GeoTrust TLS RSA CA G1
Organization (O): DigiCert Inc
Country / Territory (C): United States

CT Log

Wyvern2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Elephant2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Elephant2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

www.kt.comKT Corporation

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

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Xenon2026h2

Subject

Common Name (CN): www.kt.com
Organization (O): KT Corporation
Country / Territory (C): South Korea

Validity Period

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

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Xenon2026h2

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