DV SSL/TLS Certificate for columbusmuseum.org

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the columbusmuseum.org DV SSL/TLS Certificate

This certificate with serial number 06:d4:7e:a4:2e:3a:93:5b:b9:e4:09:ee:cf:53:85:aa:0f:91 for columbusmuseum.org was issued on by Let's Encrypt.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for columbusmuseum.org provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 06:d4:7e:a4:2e:3a:93:5b:b9:e4:09:ee:cf:53:85:aa:0f:91
Serial Number (int): 594981912579585813626037638937119271030673
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 20:b2:64:64:16:5f:45:1b:71:f5:46:80:6a:fe:c8:fa:a8:3b:71:3b
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): f7:4b:43:2c:a3:4f:e8:7f:01:51:2b:91:20:9f:f3:85:b7:dc:2b:fe
Fingerprint (SHA-256): 81:08:00:e0:d1:e7:bc:26:83:e1:c8:6d:f6:51:2a:d3:48:35:18:1a:ec:f6:1f:dc:0c:2a:f3:58:2d:e5:1d:6b

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/18.crl

Check the revocation status for certificate columbusmuseum.org
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for columbusmuseum.org

Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for columbusmuseum.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu29lZB4z+BKB2OAhM8aL
/yveWT9mv8+TWGxELXd/lACEcE6Ye7Cb30CaOZyk+SYfB8OuzDLzdSuS2oz4tjix
N0zfczHEjNe2ZQUq/xlziay7WlLHM6o8vidC6wLZRr33dpRIOLq7zW/tT5m9aF+s
q+RrBnYuJRF1Mzmfo6o2aPtfVX5v4R8X3neDFl5PH1m3iWznRwDCWfFYgBIPMKXZ
i8RJy1652tqPwvolCL57/beBejOA0Bw5vaoMFFNwqm8UlSYG01GbydcD1y8k97g0
kDBNs+ZCsRCUaushmlzu0m9+69kl9Mp8wY161fZGAZkuRK1mSm1ny72k0VfzroQc
3QIDAQAB
-----END PUBLIC KEY-----

ASN.1 Decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 594981912579585813626037638937119271030673
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [c:0|t:5|false] NULL []
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-04 14:55:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-02 14:55:42 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'columbusmuseum.org'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL []
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 23661494472633878446087948596092018833928574422519544946927613399566715456552053443877300518455246822420800992349180363412639612762707553206771231393150342684606921057740869055474440224317337778744121509099154381532904994714577972328299544006922038520533785458629687393792187371925488233615242454829234953853013258399060353733119363880991213215539483759230850019431948427486593629341068631337291485498965679488396993937506927901486335118961179296063411845862368219652789308620672292075905588064657065873991605385810268207554461855610498441704033186044616282311046290868076037765748433588663171492035972847267857308893
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							20b26464165f451b71f546806afec8faa83b713b
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (46 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'columbusmuseum.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.columbusmuseum.org'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.c.lencr.org/18.crl'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe0000001973ba671d6000004030047304502205284aac23fbf935d4903398167dc6998d56b1b5dc30540580ede9cbd9bd8c2de0221009fa877cb177b8fee9e2910070063b6338d2a2bf613e76fbc45d3944a08bc1b7100760012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a000001973ba671e400000403004730450220261b7c4e2b9b7a05664b7f651618ebbcb128b5fd1f552e24a1d3332d044f23f4022100be89c6b7f93ade9c764e8a56675189ac6bca61cfcc177f23f97a2c462701e020
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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