*.kok-heijkamp.nl

Issued by R3

About this certificate

This digital certificate with serial number 03:fc:7e:96:6f:21:ba:21:dd:d0:c0:0c:f0:af:63:7a:8a:d5 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=*.kok-heijkamp.nl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:fc:7e:96:6f:21:ba:21:dd:d0:c0:0c:f0:af:63:7a:8a:d5
Serial Number (int): 347256278085374512878950970690639960378069
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 26:72:4e:f3:87:8d:5d:8f:a8:d0:ff:5b:b5:33:53:8f:50:22:54:32
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): da:37:09:e5:ec:ac:e3:1c:2c:64:d0:32:91:ef:ae:d3:10:b7:18:5f
Fingerprint (sha256): d3:ac:c9:4f:d8:36:1e:43:25:07:d8:74:e9:83:d7:42:07:c8:56:04:67:f0:cb:14:ae:a7:2d:01:44:3f:62:ea

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

Revocation information

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

Check the revocation status for certificate *.kok-heijkamp.nl

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.kok-heijkamp.nl

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

*.kok-heijkamp.nl
kok-heijkamp.nl

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(limited to 100 certificates)
*.kok-heijkamp.nl
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*.kok-heijkamp.nl
www.saas-ai1.tech
inschrijven.kok-heijkamp.nl
remote.kok-heijkamp.nl
kok-heijkamp.nl
*.kok-heijkamp.nl
*.kok-heijkamp.nl
www.appikorn.com
links.lua-dev.idap.pro
kok-heijkamp.nl
inschrijven.kok-heijkamp.nl
*.kok-heijkamp.nl
*.kok-heijkamp.nl
kok-heijkamp.nl
prodeveloper.nl
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remote.kok-heijkamp.nl
*.kok-heijkamp.nl
*.kok-heijkamp.nl
kok-heijkamp.nl
*.kok-heijkamp.nl
remote.kok-heijkamp.nl
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*.kok-heijkamp.nl
link.kok-heijkamp.nl
civica.xn--adianteappsmxico-mqb.com
jarborist.pl
kok-heijkamp.nl
*.kok-heijkamp.nl

Certificate

The complete raw certificate details for *.kok-heijkamp.nl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqbUabDKjitnmGmUvQIJW
C/CECzOEtIGrKHCRb0wwo15v/4UuV8y6fIvOfnP+TduoDbBnZ7zl9gfp5QLebSpB
aboLh5RFS4PjVQ/Sx/pAB1LY8wi30ZnLjMQh5RK9E7HmIL1gKmInGPwkT8kYsfjO
YWEp6kAIl0rzu5V6S9tLLXa0iGMIpBuZTIywP7T8+i/R/4a8gfl7CuqmWWaHZGpQ
3JIayFf1yqnEGRlK8CgRurK1pVzybliwcTVjq67C2NrfdnQCu9PoQkXQS4wPMkgT
avOjJdoZJf0aoQY25bZWn3Dclkpjm6ETzn7xMJxqfAtR2xw9i2F1epwft2rXLdvI
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 347256278085374512878950970690639960378069
 . . . . . . . . [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 2024-02-20 08:08:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-20 08:08:54 +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 '*.kok-heijkamp.nl'
 . . . . . . . . [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 21423578862279716143914891195277741420720675701525349821816645316774298716133234251922669384273370804183520527898280943199040267721597271524020362841947801209439616607733011665323615681439858123131473945835809051671270913289572907751153054120995442323934054757062586209197854264983120748384651048619210917931041156686645737766142158374627028166433911576204041509168534415933826759198290616522598873978846953502884896037113350083497349811779585816431653281678662581026838863478688041610038577842245794667455619405610713618104821501640112063247312331806532089261950400488389214085471497278810286733049986850144233703519
 . . . . . . . . . . . . . . . . . . . . [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)
							26724ef3878d5d8fa8d0ff5bb533538f50225432
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.kok-heijkamp.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kok-heijkamp.nl'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018dc5c67aff000004030046304402204e28910d9b6f40daa5343507f6d802604f4f0dce5afa2fe2acd4bdb7c318f39602206fa744bc4d006fab35b3a5a6b87d1c08fd136f006162f43bcb855878c2ca9d78007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018dc5c67b4a0000040300463044022058030848992cff0ede06d884983638642c16fd56f8950f2565c636538c4d7456022027ac5936d7acc79073b70884b26150b57b695599161200f1726108f0e47fb84f
 . . . . [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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