cliffsnotes.com Domain Information

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1.1.1.1 Resolver query results

Subject	Validity Period	Issuer	CT Log
*.cliffsnotes.com	1 yearNot Before: Oct 31, 2025, 00:00:00 Not After: Nov 29, 2026, 23:59:59	Amazon RSA 2048 M01Amazon	Wyvern2026h2
Subject Common Name (CN) *.cliffsnotes.com Validity Period Not Before Oct 31, 2025, 00:00:00 Not After Nov 29, 2026, 23:59:59 Issuer Common Name (CN) Amazon RSA 2048 M01 Organization (O) Amazon Country / Territory (C) United States CT Log Wyvern2026h2
cliffsnotes.com	3 monthsNot Before: Aug 31, 2026, 00:00:00 Not After: Nov 27, 2026, 15:31:57	Sectigo Public Server Authentication CA DV R36Sectigo Limited	Argon2026h2
Subject Common Name (CN) cliffsnotes.com Validity Period Not Before Aug 31, 2026, 00:00:00 Not After Nov 27, 2026, 15:31:57 Issuer Common Name (CN) Sectigo Public Server Authentication CA DV R36 Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Argon2026h2
*.cliffsnotes.com	7 monthsNot Before: Feb 19, 2026, 00:00:00 Not After: Sep 4, 2026, 23:59:59	Amazon RSA 2048 M01Amazon	Sycamore2026h2
Subject Common Name (CN) *.cliffsnotes.com Validity Period Not Before Feb 19, 2026, 00:00:00 Not After Sep 4, 2026, 23:59:59 Issuer Common Name (CN) Amazon RSA 2048 M01 Organization (O) Amazon Country / Territory (C) United States CT Log Sycamore2026h2
cliffsnotes.com	3 monthsNot Before: May 18, 2026, 16:03:11 Not After: Aug 16, 2026, 17:03:05	WE1Google Trust Services	Elephant2026h2
Subject Common Name (CN) cliffsnotes.com Validity Period Not Before May 18, 2026, 16:03:11 Not After Aug 16, 2026, 17:03:05 Issuer Common Name (CN) WE1 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Elephant2026h2
cliffsnotes.com	3 monthsNot Before: May 18, 2026, 16:02:59 Not After: Aug 16, 2026, 17:00:36	WR1Google Trust Services	Elephant2026h2
Subject Common Name (CN) cliffsnotes.com Validity Period Not Before May 18, 2026, 16:02:59 Not After Aug 16, 2026, 17:00:36 Issuer Common Name (CN) WR1 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Elephant2026h2
cliffsnotes.com	3 monthsNot Before: Mar 20, 2026, 11:28:43 Not After: Jun 18, 2026, 12:28:41	WE1Google Trust Services	Trustasia2026b
Subject Common Name (CN) cliffsnotes.com Validity Period Not Before Mar 20, 2026, 11:28:43 Not After Jun 18, 2026, 12:28:41 Issuer Common Name (CN) WE1 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Trustasia2026b
cliffsnotes.com	3 monthsNot Before: Jan 20, 2026, 09:37:05 Not After: Apr 20, 2026, 10:37:02	WE1Google Trust Services	Xenon2026h1
Subject Common Name (CN) cliffsnotes.com Validity Period Not Before Jan 20, 2026, 09:37:05 Not After Apr 20, 2026, 10:37:02 Issuer Common Name (CN) WE1 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Xenon2026h1
*.cliffsnotes.com	1 yearNot Before: Mar 13, 2025, 00:00:00 Not After: Apr 12, 2026, 23:59:59	Amazon RSA 2048 M03Amazon	Xenon2026h1
Subject Common Name (CN) *.cliffsnotes.com Validity Period Not Before Mar 13, 2025, 00:00:00 Not After Apr 12, 2026, 23:59:59 Issuer Common Name (CN) Amazon RSA 2048 M03 Organization (O) Amazon Country / Territory (C) United States CT Log Xenon2026h1
cliffsnotes.com	3 monthsNot Before: Jan 2, 2026, 00:00:00 Not After: Apr 2, 2026, 10:54:30	Sectigo Public Server Authentication CA DV R36Sectigo Limited	Argon2026h1
Subject Common Name (CN) cliffsnotes.com Validity Period Not Before Jan 2, 2026, 00:00:00 Not After Apr 2, 2026, 10:54:30 Issuer Common Name (CN) Sectigo Public Server Authentication CA DV R36 Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Argon2026h1
cliffsnotes.com	3 monthsNot Before: Nov 22, 2025, 08:01:58 Not After: Feb 20, 2026, 09:01:54	WE1Google Trust Services	Elephant2026h1
Subject Common Name (CN) cliffsnotes.com Validity Period Not Before Nov 22, 2025, 08:01:58 Not After Feb 20, 2026, 09:01:54 Issuer Common Name (CN) WE1 Organization (O) Google Trust Services Country / Territory (C) United States CT Log Elephant2026h1

Subject

Validity Period

Issuer

CT Log

*.cliffsnotes.com

1 yearNot Before: Oct 31, 2025, 00:00:00
Not After: Nov 29, 2026, 23:59:59

Amazon RSA 2048 M01Amazon

Wyvern2026h2

Subject

Common Name (CN): *.cliffsnotes.com

Validity Period

Not Before: Oct 31, 2025, 00:00:00
Not After: Nov 29, 2026, 23:59:59

Issuer

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

CT Log

Wyvern2026h2

cliffsnotes.com

3 monthsNot Before: Aug 31, 2026, 00:00:00
Not After: Nov 27, 2026, 15:31:57

Sectigo Public Server Authentication CA DV R36Sectigo Limited

Argon2026h2

Subject

Common Name (CN): cliffsnotes.com

Validity Period

Not Before: Aug 31, 2026, 00:00:00
Not After: Nov 27, 2026, 15:31:57

Issuer

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

CT Log

Argon2026h2

*.cliffsnotes.com

7 monthsNot Before: Feb 19, 2026, 00:00:00
Not After: Sep 4, 2026, 23:59:59

Amazon RSA 2048 M01Amazon

Sycamore2026h2

Subject

Common Name (CN): *.cliffsnotes.com

Validity Period

Not Before: Feb 19, 2026, 00:00:00
Not After: Sep 4, 2026, 23:59:59

Issuer

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

CT Log

Sycamore2026h2

cliffsnotes.com

3 monthsNot Before: May 18, 2026, 16:03:11
Not After: Aug 16, 2026, 17:03:05

WE1Google Trust Services

Elephant2026h2

Subject

Common Name (CN): cliffsnotes.com

Validity Period

Not Before: May 18, 2026, 16:03:11
Not After: Aug 16, 2026, 17:03:05

Issuer

Common Name (CN): WE1
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Elephant2026h2

cliffsnotes.com

3 monthsNot Before: May 18, 2026, 16:02:59
Not After: Aug 16, 2026, 17:00:36

WR1Google Trust Services

Elephant2026h2

Subject

Common Name (CN): cliffsnotes.com

Validity Period

Not Before: May 18, 2026, 16:02:59
Not After: Aug 16, 2026, 17:00:36

Issuer

Common Name (CN): WR1
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Elephant2026h2

cliffsnotes.com

3 monthsNot Before: Mar 20, 2026, 11:28:43
Not After: Jun 18, 2026, 12:28:41

WE1Google Trust Services

Trustasia2026b

Subject

Common Name (CN): cliffsnotes.com

Validity Period

Not Before: Mar 20, 2026, 11:28:43
Not After: Jun 18, 2026, 12:28:41

Issuer

Common Name (CN): WE1
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Trustasia2026b

cliffsnotes.com

3 monthsNot Before: Jan 20, 2026, 09:37:05
Not After: Apr 20, 2026, 10:37:02

WE1Google Trust Services

Xenon2026h1

Subject

Common Name (CN): cliffsnotes.com

Validity Period

Not Before: Jan 20, 2026, 09:37:05
Not After: Apr 20, 2026, 10:37:02

Issuer

Common Name (CN): WE1
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Xenon2026h1

*.cliffsnotes.com

1 yearNot Before: Mar 13, 2025, 00:00:00
Not After: Apr 12, 2026, 23:59:59

Amazon RSA 2048 M03Amazon

Xenon2026h1

Subject

Common Name (CN): *.cliffsnotes.com

Validity Period

Not Before: Mar 13, 2025, 00:00:00
Not After: Apr 12, 2026, 23:59:59

Issuer

Common Name (CN): Amazon RSA 2048 M03
Organization (O): Amazon
Country / Territory (C): United States

CT Log

Xenon2026h1

cliffsnotes.com

3 monthsNot Before: Jan 2, 2026, 00:00:00
Not After: Apr 2, 2026, 10:54:30

Sectigo Public Server Authentication CA DV R36Sectigo Limited

Argon2026h1

Subject

Common Name (CN): cliffsnotes.com

Validity Period

Not Before: Jan 2, 2026, 00:00:00
Not After: Apr 2, 2026, 10:54:30

Issuer

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

CT Log

Argon2026h1

cliffsnotes.com

3 monthsNot Before: Nov 22, 2025, 08:01:58
Not After: Feb 20, 2026, 09:01:54

WE1Google Trust Services

Elephant2026h1

Subject

Common Name (CN): cliffsnotes.com

Validity Period

Not Before: Nov 22, 2025, 08:01:58
Not After: Feb 20, 2026, 09:01:54

Issuer

Common Name (CN): WE1
Organization (O): Google Trust Services
Country / Territory (C): United States

CT Log

Elephant2026h1

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