cok.eu

Issued by R3

About this certificate

This digital certificate with serial number 03:77:64:de:13:8e:5c:a6:49:43:7b:a7:c3:24:eb:be:6b:2f 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=cok.eu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:77:64:de:13:8e:5c:a6:49:43:7b:a7:c3:24:eb:be:6b:2f
Serial Number (int): 301964535344998358606011680443611979082543
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ae:c1:a9:4c:f9:3e:09:2c:9a:7c:7d:a5:ba:56:3f:20:a5:72:50:1f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 18:90:de:bb:e9:89:63:00:b7:3d:81:ea:0f:f1:f9:bf:0d:ac:db:53
Fingerprint (sha256): 04:b3:f8:93:a0:b0:fa:3e:d2:09:ba:bc:97:c0:73:a5:bd:1a:06:b5:03:fd:dd:5e:2f:fc:93:95:29:f1:fc:0b

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

Revocation information

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

Check the revocation status for certificate cok.eu

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cok.eu

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

cok.eu
www.cok.eu

Other certificates including the domain name cok.eu

(limited to 100 certificates)
cok.eu
cok.eu
cok.dk
cok.dk
cok.eu
cok.eu
cok.eu
cok.dk
cok.dk
cok.dk
cok.dk
cok.eu
cok.dk
cok.eu
cok.dk
cok.dk

Certificate

The complete raw certificate details for cok.eu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4dUC8fFy4MAtVSgD/o2O
tVlYkKNOe19NoLrZ3Rkh1pRA5ByXJg4InxCve4FGIdgsio1MLVRoMpJcCNQRte5i
FT3NzR6LcZWuyyqGsbNnA32aVzDVAlJd3K0JCDU7NMYVGqaJkqVymalo5mQX+dtH
kuej/MbbBkJ+Br8GH9rMQZwx8xAkNlYyCKoQ3j0Lu/duCArhsip37hbvWxWJBju1
QPGJeEzDtP4RUxAU9+gn0gHUhTEK2UTCxEKDZO7dNe4L+BxSL6ScZ2uCef5zVbJ0
4lcsvMBptJer9NRyXcdsRCYz08cizvJLmhpL1N/OjdVe7qt7xnVsJdop+uDlNkVZ
kwIDAQAB
-----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 301964535344998358606011680443611979082543
 . . . . . . . . [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 2023-10-08 04:06:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-06 04:06:15 +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 'cok.eu'
 . . . . . . . . [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 28508658505003838984719752077570875838593638956363304700513292771745736085389584171696396683477958911668155786192788859679933736626176012800841436436016842914864790075158023134132818882581831217216585381354590177405189201008267831244294837927384723318300101497315638635061854781549175818302984796651257240326639770296806857334753997466155108870709021675143350454231963305188720140169674204991765102886751436138405233796728592825752756833183725422530806543869922150056312154825638246619149750011567281586466477015319387286500504430898008982333909920055170965363660573913369756643911492781599734134582526893395531880851
 . . . . . . . . . . . . . . . . . . . . [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)
							aec1a94cf93e092c9a7c7da5ba563f20a572501f
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cok.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cok.eu'
 . . . . . . . . . . . . . . . . [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)
							00f1007700dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b0dadd04d0000040300483046022100bd44f79e57e956f98fdbbb234dc1bba4ee328df1ec2d7b6e6ed877192976509a0221008f3b78d9427c8fb656f274c09c1108d47cc4d7d5699389087be8022e07203b0e007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b0dadd0520000040300473045022100f236ca167c990ef151a9ce239a5985e29a29fad07530367c2575f9fb834b129a02207f657d999e917f8ff2e9cc295ae0aff8a06da6cfa6d5973b82e3b2093128893a
 . . . . [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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