12cu.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:32:f8:1f:ca:47:1f:91:55:59:c5:fd:be:b0:85:20:59:ff was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=12cu.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:32:f8:1f:ca:47:1f:91:55:59:c5:fd:be:b0:85:20:59:ff
Serial Number (int): 278680789748166646037932734935709238974975
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c6:3f:7a:5c:69:cd:83:b8:7e:ce:df:28:aa:e7:59:c0:02:10:6b:47
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 02:82:14:cd:a4:e7:83:07:38:6c:01:c0:c8:f3:25:81:53:a3:17:bc
Fingerprint (sha256): f2:4a:22:a2:f7:45:75:84:76:a2:cb:6a:d1:56:bf:55:d1:1b:22:c9:4d:ea:66:4c:25:0a:92:00:9d:b8:aa:af

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate 12cu.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 12cu.com

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

12cu.com
www.12cu.com

Other certificates including the domain name 12cu.com

(limited to 100 certificates)
12cu.com
analytics.fontys.12cu.com
office-analyzer.fontys.12cu.com
12cu.com
12cu.com
support-canon-test.gekko.fr
12cu.com
12cu.com
12cu.com
support-canon-test.gekko.fr
portal.12cu.com
kpn.dev.12cu.com
12cu.com
support.dwsford.it
support.senapsis.com
support-canon-test.gekko.fr
12cu.com
support.tecamb.it
support.tecamb.it
12cu.com
kpn.dev.12cu.com
12cu.com
kibana.data.12cu.com
12cu.com
12cu.com
analytics.fontys.12cu.com
12cu.com
12cu.com
support-canon-test.gekko.fr
12cu.com

Certificate

The complete raw certificate details for 12cu.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0JdESpt6UcrZSVmp76vM
fZqxDkfpTKPNe1rwIV6i0tLUFvjG2aW6HsS1Rc1DZRkQtUnoxkabvRLbVDxto8hK
Qt9HIjkEnx9WERTmuvNMrNKzb9qdqfUK5mo3sAUey8tU1WXRyG7SHLsXoWlWyp5n
ajbkwEZVmVMHTfB+ZxJ5PBF+prjV2cT1e3iOBQ4+RDrNcIod2EPy5MtbwB1B8tQZ
/Up/X195LZJWQmVEJNWj/PgVtGPpjZD7s3R1E73vWVZxQ5KXT/OL0a8Cq+cpIcdL
SCD9fdLVgKn4f+M2DKB4DFBYO6LRHQ9IpjBdt8RZBWC1qLu8BX5p+F5RGvjHlMd6
twIDAQAB
-----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 278680789748166646037932734935709238974975
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [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 (countryName)
 . . . . . . . . . . . . . . . . . . . . [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 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-10 12:41:48 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-08 12:41:48 +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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString '12cu.com'
 . . . . . . . . [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 (rsaEncryption)
 . . . . . . . . . . . . . . . . [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 26332159854079015320399812959144520216395738717402166986792624934432754565660602278236440959530733541908824108068285464899175607491056574439530207931246454382770318743772390089870679015254676417191569473194555256179282050859076529055235633987245555861508298388029173677408507692476618177963634216192412558821624742312033595214016336696808630590631789648817808698855917630123839603541773053442380789460719997324945788427623722795998094205523047426531627775236618127125761608660317938797767033597996026279580604543416075635709541218846523093072068696136758322197329812707121826437842798436652607121600873143488429390519
 . . . . . . . . . . . . . . . . . . . . [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 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [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 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [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 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [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 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							c63f7a5c69cd83b87ecedf28aae759c002106b47
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '12cu.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.12cu.com'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 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 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c7bc38a2a00000403004830460221008575471747af21e93d0b49499a06718e3b60dc2e798364ff4246e903639e21f0022100e13af8b7e07d92459c113796d6f45c7cbc39e2c3067baa75fc43dc9ad849d7a0007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c7bc38c0d00000403004730450220370a584744a4fa60fb94c2954e625f7830dd650a4dcf11776a91c2bf89b2c5ee022100a0acb3194067053c17b9f845d81294788124450fc63ac107e1ca7f7e716e66d5
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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