knowledge.commons.foundation

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ee:37:c3:c0:59:cf:c2:8d:67:64:53:24:c0:db:87:5e:95 was issued on by Let's Encrypt.

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=knowledge.commons.foundation

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ee:37:c3:c0:59:cf:c2:8d:67:64:53:24:c0:db:87:5e:95
Serial Number (int): 342398185061457927869845316908891672895125
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a8:53:57:29:7e:62:44:51:fe:4e:11:2a:b4:10:fc:61:ad:7a:3d:c4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 80:3c:63:7d:0d:c6:0f:72:c1:95:f3:fa:a2:49:a1:d8:c0:92:4f:cf
Fingerprint (sha256): 04:e4:db:9c:2d:af:ff:81:9f:af:cf:fe:0a:ed:67:bf:2c:e9:2c:ed:25:df:b5:f6:78:d3:00:77:ce:04:1b:8d

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 knowledge.commons.foundation

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for knowledge.commons.foundation

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

knowledge.commons.foundation

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Certificate

The complete raw certificate details for knowledge.commons.foundation in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5xKSHCJQAJm26wSUohhZ
6WeJqdWHf60LI86FtBndGLRM7N8VR5GjFAxsbO56hn7yOz2AmgUbOHYmAT1DEv1E
Fl9qKBuERfswDMLh764+r9XVWEGu7eJb3jz+PrHN+qcp8MW4b3nd1J6Xqdp+xey3
fqVmnyPpnGm6i9R0yNFWzTygyft6a+B0EHfEmjFMyO5m0P+e5BttAfRI68q61VvH
i5MNPHnOViiPU4+PLY5NWeXdlD+/hQQy6fcvV7mxjpSXjHKJSFJ7c4BrvEqyOqzY
R83H89ZTtRCd1pg4qkSt/deTroTQ/KGLhXHDv/aiIhpHYIPjWdkVOP93GWMo5E7r
XwIDAQAB
-----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 342398185061457927869845316908891672895125
 . . . . . . . . [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 2019-04-29 07:40:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-28 07:40:24 +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 'knowledge.commons.foundation'
 . . . . . . . . [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 29170206021244281456959207593201984917687250525732813396321976306802242649003517336566751870754877331519840270794473340532081624127163083774802922998390557495334247726377853784455387111322629330758845304433141726437124495613730633699944435223652120177173444400308971386790797810528020487499708976420256319676713912734006232723105563180988096567842832888436545220077902827265587822910398093535326759435046803989219291665558452166971427000570403645308475675422112159311202714807055491055030705667919263975790221976140301537355190810880789466196442853186872473710502090160689193117004640454964992955160461870078995917663
 . . . . . . . . . . . . . . . . . . . . [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)
							a85357297e624451fe4e112ab410fc61ad7a3dc4
 . . . . . . . . . . . . . . . . [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 'knowledge.commons.foundation'
 . . . . . . . . . . . . . . . . [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)
							00f1007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016a684098240000040300483046022100ea38d7c688a407a9bdcda751331124d21ef9c4de8dce529caff5ed9b9e7e3922022100b788c0cd197bf1324ee44313c048b6d9c3360bf3aa55024cb9fce4997f3157ca00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016a68409a3c0000040300473045022100dec7d98082459dc9b60ef75da8935c2a370b28fcbb66c93082da92f070d40bf502202de6cfdf7a34fea4f6bfd59fafc2ce9650a2d07bc84d8dd98ca671ef731d6a75
 . . . . [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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