*.nextknowledge.ca

Issued by R3

About this certificate

This digital certificate with serial number 03:ae:a7:82:b6:99:56:d1:73:ff:45:c1:cb:7a:d4:74:e2:e4 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • 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)

Certificate Subject

CN=*.nextknowledge.ca

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ae:a7:82:b6:99:56:d1:73:ff:45:c1:cb:7a:d4:74:e2:e4
Serial Number (int): 320768649416959048714274012679127742866148
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 81:8d:e4:40:c9:96:d7:55:93:5e:94:2a:16:1f:d8:74:99:62:58:b6
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): fc:6f:31:91:49:2e:cb:5a:3a:88:b6:08:5b:96:d9:46:03:8e:01:2a
Fingerprint (sha256): c1:0c:3b:d7:79:1b:78:e3:e9:4d:b1:25:34:66:3b:d9:6b:27:02:ad:43:d3:f5:87:d6:de:b0:e3:a9:36:41:9d

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate *.nextknowledge.ca

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.nextknowledge.ca

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

*.nextknowledge.ca
nextknowledge.ca

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Certificate

The complete raw certificate details for *.nextknowledge.ca in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0US+uPoltZ+M36GewumS
p6UYW7ueDjyl3nr+M65eSdkeONd0o8yhz7P+J4zlaCL1qVgHM1mcv872+jDkHaam
LbuR5Hq4uuq26KPAf01KnuuXE1edeOaOjagpswjzQlzJhLu5OoLtC2utTZrYvxtK
gyzGNyYaJUJaEFDip4qNYiBgKeKArZxVETpf6hih9ilXwLoah35+wU2uTeKaEkA6
raRyzM13AclHoi2v2ujShAcyw5wbqLG5IjEkbxwgIixa97UNQBvWZhdqpkdKFpmF
B9x/L9Q0cz8R+jT5B1q3gkaMWm1eAMRXXpP8odx2583dT+NNdDOtGdb6LIPFgC7s
ZQIDAQAB
-----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 320768649416959048714274012679127742866148
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-29 08:49:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-29 08:49:24 +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:12|false] UTF8String '*.nextknowledge.ca'
 . . . . . . . . [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 26417705165799609162594268742037669098297009386578191119552089682236799315860148835192541959982339082692720863086303567913003395937592888394538710228410710054779851405669600233800368670637834585316571762804934821377297704537029206467799065960094794818608565859279775243109521897249789613793227895663851009883670922848819572840710337439577973176537045334495638281087695249038140689584828840798751516219356684925530883456792126190273434317974124575126906159212826741728660468923461653208851431514438105683217911768078808303371619877391662671823447043987701274276309865480811832324516194841991229052914474746517662919781
 . . . . . . . . . . . . . . . . . . . . [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)
							818de440c996d755935e942a161fd874996258b6
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.nextknowledge.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nextknowledge.ca'
 . . . . . . . . . . . . . . . . [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 (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 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018df444cb100000040300483046022100a4a96cbc61dff480cb82475fb0d403d72be9930dadc84b577e543a79f78082da0221009d29cb39a3d7f7239aa35e8428c47b16c853760622e3efdd34d2dbe056717ae60076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018df444cb0f0000040300473045022100bb376da43cccae4ba1833e92f4c73c09479d27207b54cad7419e147be259a5d502201bf8a7f9be1d749a627cd8f4a898a87559a1f837315138f34354c78b7a44bdb9
 . . . . [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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