krugpark.com

Issued by R3

About this certificate

This digital certificate with serial number 04:fa:8a:e0:f7:29:5b:13:7f:76:01:c1:48:13:ba:ae:57:d6 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=krugpark.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:fa:8a:e0:f7:29:5b:13:7f:76:01:c1:48:13:ba:ae:57:d6
Serial Number (int): 433704337008221946116637899295740564232150
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f1:90:b6:e7:90:96:71:e4:e9:25:e7:40:b9:58:a4:a9:97:f2:12:03
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 55:13:1c:60:4f:5f:68:be:d7:e5:ce:db:b4:d1:8b:25:53:94:37:f7
Fingerprint (sha256): 8f:e1:8f:4f:37:d5:52:16:eb:e3:e5:43:c2:6d:29:a6:56:38:22:e5:6d:50:68:98:e6:1c:b6:d6:11:36:14:04

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

Revocation information

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

Check the revocation status for certificate krugpark.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for krugpark.com

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

krugpark.com

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mondays.krugpark.com
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Certificate

The complete raw certificate details for krugpark.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxaa0hMy+GH2mS8Nuoi9u
OnXIIrzphuWZ6EaN9J4GmCO+6Bo2BDLxX9+HRx99JUnI3SpOjAwMl6j7VcqHHbjC
JVTy5YTrglDgY7Z3kZVDAf7GcJ/0Qb8nwp/agCbYLxgmAEpczjmEgrauIpGTytLt
NsX3O4Y4w6c0mGF7xdLNLc7gdR72SswlviNNUhNtwnMD6feNsN8trFjLnafOeYXW
hqjbBNWoaJiSGI7imRE2jfAjCeIDdCYOr6A9hsQgS7yiVnUG90ZpDOMdJ+OvgFMW
kzIcUGhaJEA0ea5WC7sYL5R29NYunenZySP5sf7ozVO+1SZ1+ww7SDxYWD45LMFj
6wIDAQAB
-----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 433704337008221946116637899295740564232150
 . . . . . . . . [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 2024-01-07 00:54:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-06 00:54:06 +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 'krugpark.com'
 . . . . . . . . [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 24951151452287266509585591352664356483011617403809545445213706172141555215422527277606124373654586432057583776062005504480227401014344514710255879667722144573824851545500828218240411727820527420081826984877829525005944615056911478493519574145431806965047964805657478910860022313927181463292095524482237616783239256671445340086545807675929945529290805982487174615648880102440589844371775223960856978160598699318966882625925291624133418891324540108832084641166958445665594185722919927814726798065327168808686295914808183157615363873176032678189435694491207758700222597781750793765388112109058803034195391652704504865771
 . . . . . . . . . . . . . . . . . . . . [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)
							f190b6e7909671e4e925e740b958a4a997f21203
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'krugpark.com'
 . . . . . . . . . . . . . . . . [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)
							00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ce1a098e2000004030046304402200668e2b2d1db3d736266a4edaf3f63aec038e2857b333f40194302695288c550022011eba2e31c0f55ed09559f01863c1182c202a9fd98cb062bc2bc932b69d959b7007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ce1a09aaf0000040300473045022100bade88a9102e83d0f4a4a68462101a0437dc80964e57f0aeb0ba5d49deaebf870220087a57bfb438ec13529c7eff041a694b9096ea5a7a91f447e9f28c31d2c7c8f9
 . . . . [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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