ckut.ca

Issued by R3

About this certificate

This digital certificate with serial number 03:e4:76:c0:fe:47:80:38:f1:a7:a8:c0:8f:86:00:36:7c:8e 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:
  • 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=ckut.ca

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e4:76:c0:fe:47:80:38:f1:a7:a8:c0:8f:86:00:36:7c:8e
Serial Number (int): 339079088435151090157751610838917016091790
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ae:48:0b:38:18:05:b8:b5:a1:78:9a:bf:f8:d3:c0:cf:25:78:7d:f2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ab:7d:e0:e1:d3:0a:c3:a6:12:fd:0a:26:ed:1d:aa:a1:0b:f5:02:92
Fingerprint (sha256): e5:1f:d8:60:1a:38:83:5e:21:85:3d:ca:68:b8:5a:a3:f9:c5:0a:e5:39:4d:2a:af:8f:21:e4:bc:71:7a:75:36

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

Revocation information

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

Check the revocation status for certificate ckut.ca

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ckut.ca

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

ckut.ca

Other certificates including the domain name ckut.ca

(limited to 100 certificates)
ckut.ca
phase.ckut.ca
secure.ckut.ca
secure.ckut.ca
icecast.ckut.ca
icecast.ckut.ca
ckut.ca
icecast.ckut.ca
ckut.ca
icecast.ckut.ca
ckut.ca
secure.ckut.ca
archives.ckut.ca
secure.ckut.ca
ckut.ca
ckut.ca
ckut.ca
ckut.ca
ckut.ca
ckut.ca
archives.ckut.ca
icecast.ckut.ca
archives.ckut.ca
secure.ckut.ca
icecast.ckut.ca
icecast.ckut.ca
secure.ckut.ca
icecast.ckut.ca
secure.ckut.ca
ckut.ca
secure.ckut.ca
ckut.ca
icecast.ckut.ca
secure.ckut.ca
icecast.ckut.ca
ckut.ca
ckut.ca
secure.ckut.ca
ckut.ca
ckut.ca
icecast.ckut.ca
ckut.ca
icecast.ckut.ca
ckut.ca
ckut.ca
ckut.ca
ckut.ca
www.ckut.ca
ckut.ca
ckut.ca
icecast.ckut.ca
ckut.ca

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEQI5A9EDuNTT3H3hCw4sgDvL1zI6H
BjikbbQixpQZHO8+qiECIuMCCUceybHpQGNd03SsIA63NP1hBhVUIcS5hQ==
-----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 339079088435151090157751610838917016091790
 . . . . . . . . [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 2023-11-21 14:36:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-19 14:36:31 +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 'ckut.ca'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				0004408e40f440ee3534f71f7842c38b200ef2f5cc8e870638a46db422c694191cef3eaa210222e30209471ec9b1e940635dd374ac200eb734fd6106155421c4b985
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							ae480b381805b8b5a1789abff8d3c0cf25787df2
 . . . . . . . . . . . . . . . . [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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ckut.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bf286a49f000004030047304502202ea21ffd130c15560e3bd992514caaa71e05379cb84a860d9c4f09ea05d59a3c022100a7e1bb3b474c33e12a02df3a5ae0e952eb2360937b90b57785fbfddc406f89df007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018bf286a4cd000004030046304402202c4d8d60311aa028cb94a0843d02d8bc91323a151f625a05d1832b14d1feee4902205a54e7fdd755f181006ce03915baaad43856c6b043c48b8409eb710007f8bb42
 . . . . [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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