karl-ahlborn.de

Issued by R3

About this certificate

This digital certificate with serial number 04:a7:cd:01:6a:b0:3d:0f:fb:77:ca:4b:a1:37:86:f2:de:a5 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=karl-ahlborn.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:a7:cd:01:6a:b0:3d:0f:fb:77:ca:4b:a1:37:86:f2:de:a5
Serial Number (int): 405548798098168948770249777719523102875301
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 29:b5:67:09:39:5a:72:99:a5:00:c9:8b:1f:cf:f4:ce:88:1d:01:97
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7c:e2:72:09:f3:a4:c4:58:13:4a:90:74:d7:40:00:07:22:af:8e:c1
Fingerprint (sha256): 4c:e7:65:6c:d3:00:68:60:4a:ce:13:45:4e:bf:a2:ec:fa:33:9b:f7:4c:70:38:22:4c:32:5c:8f:77:e6:88:d1

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

Revocation information

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

Check the revocation status for certificate karl-ahlborn.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for karl-ahlborn.de

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

karl-ahlborn.de
www.karl-ahlborn.de

Other certificates including the domain name karl-ahlborn.de

(limited to 100 certificates)
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de
karl-ahlborn.de

Certificate

The complete raw certificate details for karl-ahlborn.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuantzWygNr8fVHdxDZsD
SMrjzObFp1GWarDpCaks/mP7MW6RT5S4k5jKiIXnsooaHM0aB9NCkn8u5dkIpsfS
KrIl2g2WE3BZqS3rhgFRXoaBDua0uBqKGX1p/WPNBvDmfbhP+u1ots1ZFCwcr9VR
DCLhxmJB5QPB9lNV7ofdAI8Hp0Yn292XMMiP/nsNLyJYfWSYJxXv2AMG+UOtPxdY
Fck7Ey/K+Q9Vp86QbFYkRIyIn3jaiPoEcNdWqRLjq4YOIGVwW9Zhon3Xz1rPYQBm
UgE/W9WdeD3Wj3DsV6UrQ4zfrB9ue6p8cH/iD5a+QdH4wdHrNS90uprnnePlbHTc
swIDAQAB
-----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 405548798098168948770249777719523102875301
 . . . . . . . . [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 2024-01-02 19:54:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-01 19:54:37 +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 'karl-ahlborn.de'
 . . . . . . . . [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 23437881490175251738694383250509283100888503018124403007565237227128075861679324967198269628529482414002899876672292433431533724310609874024654003489343889400420610628053596462417208213111258747796116953985892226934851820042743965941826878141913332895339383223071733424886665232988560668946701953370939089895743446202112255653593968191302735990358811893749365521433038212341331350110189743569329052471527335353514704704070072360497379098370513416148052772921699305783427186550953923214589559765764163736376544428194716757595544329764372470914028518490065567976793048968582284201332035743382865771854741523125497027763
 . . . . . . . . . . . . . . . . . . . . [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)
							29b56709395a7299a500c98b1fcff4ce881d0197
 . . . . . . . . . . . . . . . . [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 'karl-ahlborn.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.karl-ahlborn.de'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ccbf4fafd0000040300473045022100b91556992ba917a8a883bc35dfe7a5fa4a2d751a86c28471edd09361d6dbdbfc02201b1721c1b4e71733f0ab7d9237e762376b67cfebc4c9f89e4e5ad2a87e458470007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ccbf4fb0800000403004730450220533fff3548a6536cbfd20fefc1e6612ae1f5981831f311c25074bec26665d4f8022100e9e93e3fbcf4e5dd6979d249d62c22e61b3ec273ee12dd3494d1a5b2de6e79f1
 . . . . [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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