cofactor.ng

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:8b:81:ac:2b:19:8b:f8:25:ff:b5:c4:49:66:01:e0:aa:a7 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=cofactor.ng

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:8b:81:ac:2b:19:8b:f8:25:ff:b5:c4:49:66:01:e0:aa:a7
Serial Number (int): 395920757089734990575152812140741271792295
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 66:07:aa:dc:9f:6f:76:3c:a5:93:aa:8e:2d:e0:64:cf:26:4e:1a:7e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 4c:73:63:48:73:23:c0:29:1a:e8:7d:9b:cf:5c:00:c3:bb:a2:c7:e0
Fingerprint (sha256): f8:b1:b6:b2:36:6f:40:cf:ba:46:61:59:b8:30:5d:d5:17:dd:51:d4:7a:52:b3:20:54:f2:2a:4f:b6:f9:b7:2a

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 cofactor.ng

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cofactor.ng

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

cofactor.ng
www.cofactor.ng

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cofactor.ng
cofactor.ae
cofactor.ng
cofactor.ac
cofactor.ac
cofactor.ac
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teachersnow.com.br
cofactor.ng
cofactor.ae
cofactor.ng

Certificate

The complete raw certificate details for cofactor.ng in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA72HHFYJ29iw51u2oB4zI
XGzUtM4HvAxwB84GIRkT982/x1VxOicXv/GHHEsI4lwRoZmKXhA/w0WO3SnDDubI
WbCYung7ZpLeV6baecLoRPw/S4pDPqAAsP+soALfOEbgI4os8Ftrd1ab+ZcUQVfJ
bHOQvcwBMpS2g1UQPgbVqybHr9LMeH5OgWsFIREUPOOot2L1cvyGaHUx8W3U2nyj
U6Z74b2Q/wu+fEZMc3BgayYm0wZIRi/Cg6yS+XKLPpPXI1GmsuQxs/c1g389X22F
G7XTiH0QZqzO2uJaQy7EYi1TAENrxSEgJbOeekLibNlTMkYlynFaxG5jGYIhqzv9
SwIDAQAB
-----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 395920757089734990575152812140741271792295
 . . . . . . . . [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 2019-12-13 18:40:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-12 18:40:52 +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 'cofactor.ng'
 . . . . . . . . [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 30219170853965619331585959960255160493966934532070937226264729548654571970468815887075588276410087694917520216471097088140491133483014470026528699711241379045596900995552338631709904552419947476668260264986205397664256372365449876311875240206123731584794729602760792354752742374557803752359375959714034535992745542496418561057710800263211272975499403071269096824584485230728314704539071753091540295395260959815308370663605268464102919003164602936918873013131638432304143220298674555853600665558557289218647025291655782756536028860208875175262997854171827302500061158065959809901763645214429507261212882598586310458699
 . . . . . . . . . . . . . . . . . . . . [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)
							6607aadc9f6f763ca593aa8e2de064cf264e1a7e
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cofactor.ng'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cofactor.ng'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f00c731f2000004030046304402203efc692280d6c7689eb7c3da6df389421ba69c791ac652293addea103830693a02203c07a8619938dd214a6534d1c7dc04574b9f8f68b4f1277823974dd74d754ede007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f00c731de00000403004630440220242c6e073396d70618e43adf2c1649c33514492ea703f52707cfe55a55fcf65a022005ef8c89e1866a713c18a9353f6c36010f34c65cff7973020c60f19ac971fe1d
 . . . . [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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