postech.ac.kr Domain Information

DNS records

1.1.1.1 Resolver query results

Subject	Validity Period	Issuer	CT Log
*.postech.ac.krPohang University of Science and Technology	7 monthsNot Before: Jun 12, 2026, 00:00:00 Not After: Dec 27, 2026, 23:59:59	Thawte TLS RSA CA G1DigiCert Inc	Luoshu2027
Subject Common Name (CN) *.postech.ac.kr Organization (O) Pohang University of Science and Technology Country / Territory (C) South Korea Validity Period Not Before Jun 12, 2026, 00:00:00 Not After Dec 27, 2026, 23:59:59 Issuer Common Name (CN) Thawte TLS RSA CA G1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Luoshu2027
postech.ac.kr	1 yearNot Before: Sep 17, 2025, 00:00:00 Not After: Oct 16, 2026, 23:59:59	Amazon RSA 2048 M01Amazon	Wyvern2026h2
Subject Common Name (CN) postech.ac.kr Validity Period Not Before Sep 17, 2025, 00:00:00 Not After Oct 16, 2026, 23:59:59 Issuer Common Name (CN) Amazon RSA 2048 M01 Organization (O) Amazon Country / Territory (C) United States CT Log Wyvern2026h2
*.postech.ac.kr	3 monthsNot Before: Jun 8, 2026, 11:42:20 Not After: Sep 6, 2026, 11:42:19	YR2Let's Encrypt	Xenon2026h2
Subject Common Name (CN) *.postech.ac.kr Validity Period Not Before Jun 8, 2026, 11:42:20 Not After Sep 6, 2026, 11:42:19 Issuer Common Name (CN) YR2 Organization (O) Let's Encrypt Country / Territory (C) United States CT Log Xenon2026h2
*.postech.ac.krPohang University of Science and Technology	1 yearNot Before: Jun 11, 2025, 00:00:00 Not After: Jul 9, 2026, 23:59:59	Thawte TLS RSA CA G1DigiCert Inc	Xenon2026h2
Subject Common Name (CN) *.postech.ac.kr Organization (O) Pohang University of Science and Technology Country / Territory (C) South Korea Validity Period Not Before Jun 11, 2025, 00:00:00 Not After Jul 9, 2026, 23:59:59 Issuer Common Name (CN) Thawte TLS RSA CA G1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Xenon2026h2
*.postech.ac.kr	3 monthsNot Before: Feb 24, 2026, 00:19:57 Not After: May 25, 2026, 01:15:47	WR3Google Trust Services	Wyvern2026h1
Subject Common Name (CN) *.postech.ac.kr Validity Period Not Before Feb 24, 2026, 00:19:57 Not After May 25, 2026, 01:15:47 Issuer Common Name (CN) WR3 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Wyvern2026h1
*.postech.ac.kr	3 monthsNot Before: May 16, 2025, 22:35:44 Not After: Aug 14, 2025, 23:31:39	WR3Google Trust Services	Xenon2025h2
Subject Common Name (CN) *.postech.ac.kr Validity Period Not Before May 16, 2025, 22:35:44 Not After Aug 14, 2025, 23:31:39 Issuer Common Name (CN) WR3 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Xenon2025h2
*.postech.ac.krPohang University of Science and Technology	1 yearNot Before: Jun 13, 2024, 00:00:00 Not After: Jul 9, 2025, 23:59:59	Thawte TLS RSA CA G1DigiCert Inc	Nessie2025
Subject Common Name (CN) *.postech.ac.kr Organization (O) Pohang University of Science and Technology Country / Territory (C) South Korea Validity Period Not Before Jun 13, 2024, 00:00:00 Not After Jul 9, 2025, 23:59:59 Issuer Common Name (CN) Thawte TLS RSA CA G1 Organization (O) DigiCert Inc Country / Territory (C) United States CT Log Nessie2025
*.postech.ac.kr	3 monthsNot Before: Mar 19, 2025, 18:27:24 Not After: Jun 17, 2025, 19:23:19	WR3Google Trust Services	Argon2025h1
Subject Common Name (CN) *.postech.ac.kr Validity Period Not Before Mar 19, 2025, 18:27:24 Not After Jun 17, 2025, 19:23:19 Issuer Common Name (CN) WR3 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Argon2025h1
*.postech.ac.kr	3 monthsNot Before: Nov 23, 2024, 10:10:44 Not After: Feb 21, 2025, 11:06:39	WR3Google Trust Services	Xenon2025h1
Subject Common Name (CN) *.postech.ac.kr Validity Period Not Before Nov 23, 2024, 10:10:44 Not After Feb 21, 2025, 11:06:39 Issuer Common Name (CN) WR3 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Xenon2025h1
*.postech.ac.kr	3 monthsNot Before: Sep 26, 2024, 06:02:24 Not After: Dec 25, 2024, 06:58:19	WR3Google Trust Services	Nimbus2024
Subject Common Name (CN) *.postech.ac.kr Validity Period Not Before Sep 26, 2024, 06:02:24 Not After Dec 25, 2024, 06:58:19 Issuer Common Name (CN) WR3 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Nimbus2024

Subject

Validity Period

Issuer

CT Log

*.postech.ac.krPohang University of Science and Technology

7 monthsNot Before: Jun 12, 2026, 00:00:00
Not After: Dec 27, 2026, 23:59:59

Thawte TLS RSA CA G1DigiCert Inc

Luoshu2027

Subject

Common Name (CN): *.postech.ac.kr
Organization (O): Pohang University of Science and Technology
Country / Territory (C): South Korea

Validity Period

Not Before: Jun 12, 2026, 00:00:00
Not After: Dec 27, 2026, 23:59:59

Issuer

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

CT Log

Luoshu2027

postech.ac.kr

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

Amazon RSA 2048 M01Amazon

Wyvern2026h2

Subject

Common Name (CN): postech.ac.kr

Validity Period

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

Issuer

Common Name (CN): Amazon RSA 2048 M01
Organization (O): Amazon
Country / Territory (C): United States

CT Log

Wyvern2026h2

*.postech.ac.kr

3 monthsNot Before: Jun 8, 2026, 11:42:20
Not After: Sep 6, 2026, 11:42:19

YR2Let's Encrypt

Xenon2026h2

Subject

Common Name (CN): *.postech.ac.kr

Validity Period

Not Before: Jun 8, 2026, 11:42:20
Not After: Sep 6, 2026, 11:42:19

Issuer

Common Name (CN): YR2
Organization (O): Let's Encrypt
Country / Territory (C): United States

CT Log

Xenon2026h2

*.postech.ac.krPohang University of Science and Technology

1 yearNot Before: Jun 11, 2025, 00:00:00
Not After: Jul 9, 2026, 23:59:59

Thawte TLS RSA CA G1DigiCert Inc

Xenon2026h2

Subject

Common Name (CN): *.postech.ac.kr
Organization (O): Pohang University of Science and Technology
Country / Territory (C): South Korea

Validity Period

Not Before: Jun 11, 2025, 00:00:00
Not After: Jul 9, 2026, 23:59:59

Issuer

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

CT Log

Xenon2026h2

*.postech.ac.kr

3 monthsNot Before: Feb 24, 2026, 00:19:57
Not After: May 25, 2026, 01:15:47

WR3Google Trust Services

Wyvern2026h1

Subject

Common Name (CN): *.postech.ac.kr

Validity Period

Not Before: Feb 24, 2026, 00:19:57
Not After: May 25, 2026, 01:15:47

Issuer

Common Name (CN): WR3
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Wyvern2026h1

*.postech.ac.kr

3 monthsNot Before: May 16, 2025, 22:35:44
Not After: Aug 14, 2025, 23:31:39

WR3Google Trust Services

Xenon2025h2

Subject

Common Name (CN): *.postech.ac.kr

Validity Period

Not Before: May 16, 2025, 22:35:44
Not After: Aug 14, 2025, 23:31:39

Issuer

Common Name (CN): WR3
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Xenon2025h2

*.postech.ac.krPohang University of Science and Technology

1 yearNot Before: Jun 13, 2024, 00:00:00
Not After: Jul 9, 2025, 23:59:59

Thawte TLS RSA CA G1DigiCert Inc

Nessie2025

Subject

Common Name (CN): *.postech.ac.kr
Organization (O): Pohang University of Science and Technology
Country / Territory (C): South Korea

Validity Period

Not Before: Jun 13, 2024, 00:00:00
Not After: Jul 9, 2025, 23:59:59

Issuer

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

CT Log

Nessie2025

*.postech.ac.kr

3 monthsNot Before: Mar 19, 2025, 18:27:24
Not After: Jun 17, 2025, 19:23:19

WR3Google Trust Services

Argon2025h1

Subject

Common Name (CN): *.postech.ac.kr

Validity Period

Not Before: Mar 19, 2025, 18:27:24
Not After: Jun 17, 2025, 19:23:19

Issuer

Common Name (CN): WR3
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Argon2025h1

*.postech.ac.kr

3 monthsNot Before: Nov 23, 2024, 10:10:44
Not After: Feb 21, 2025, 11:06:39

WR3Google Trust Services

Xenon2025h1

Subject

Common Name (CN): *.postech.ac.kr

Validity Period

Not Before: Nov 23, 2024, 10:10:44
Not After: Feb 21, 2025, 11:06:39

Issuer

Common Name (CN): WR3
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Xenon2025h1

*.postech.ac.kr

3 monthsNot Before: Sep 26, 2024, 06:02:24
Not After: Dec 25, 2024, 06:58:19

WR3Google Trust Services

Nimbus2024

Subject

Common Name (CN): *.postech.ac.kr

Validity Period

Not Before: Sep 26, 2024, 06:02:24
Not After: Dec 25, 2024, 06:58:19

Issuer

Common Name (CN): WR3
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Nimbus2024

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