karl-ahlborn.de

Issued by R3

About this certificate

This digital certificate with serial number 03:fa:98:61:47:3a:c1:24:2f:90:a4:3b:01:3c:a0:36:9b:81 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): 03:fa:98:61:47:3a:c1:24:2f:90:a4:3b:01:3c:a0:36:9b:81
Serial Number (int): 346609997278376030534617043797734392765313
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 88:16:74:6e:89:eb:aa:e3:4f:6d:0c:8c:f4:04:a3:97:f4:e4:58:22
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 01:33:01:7a:2d:10:a7:f3:1e:9d:24:f2:c6:fb:83:99:dd:aa:c2:c0
Fingerprint (sha256): 38:1b:a9:a9:5a:a9:46:9b:55:6a:a0:cc:0d:97:b9:eb:b8:a1:ce:67:c8:b3:86:58:fa:7e:1f:b4:d5:0a:90:f0

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo0UdhpXK9IBOs7P6bYKN
gyjGBj7AwJ366EOn6PgsSK5OBgwuska66mOfwfEpTzRAa7xjDE0wqKmJqvZPkuj0
uxUzjFl4COgAE285/pSdMAFUmWQNGFGYc3IhxNpjJkcT8CuKoXuNVRO2rZyA6mQC
LjEnw5KgrlaDbqueSAOWj/AbMcNkNi7SNEeYiBQFUd6yySMHAg5DHP9QwKFx8aeb
Fi9blnp5bRB0boQTY2NCYAgLjV69Rh8Z3SduK/BjANrREqF3GkQVfultbE1XmkN8
rJF2kys6mCY949D8+Z07jfvQlLUT/ifPZ/OlG0fjxW6ATpI/gmx5daMaVOlyvqif
LwIDAQAB
-----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 346609997278376030534617043797734392765313
 . . . . . . . . [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 2023-11-04 18:51:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-02 18:51:19 +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 20610925751340184981894682547468858345146099272322435489340497057693827220944612422922526784991828632147646083561339876401510340504789607803939379910522049188993445634769318771672075882821150561322312935507937162121261002731352453977103384443697116511741060310544027379639916651136194201074699763272558510532235668516905540714487205252479359030082164768493202073524976744712771118866026481623780008633956696557559862175013936572415517038779322157424934497278257283615151310901120261026024230359294481481509861775072833694093990241058683191142876545594312307609409120345193167821203279585452953853798514899748844511023
 . . . . . . . . . . . . . . . . . . . . [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)
							8816746e89ebaae34f6d0c8cf404a397f4e45822
 . . . . . . . . . . . . . . . . [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)
							00f00075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b9be3d14a0000040300463044022053b1ec0e615a82c47d5483c5428e856b6c8be2507aab07ded3c722134d73b9d802202ded4dacfab47503543ecfbc055534a9bebb813e40b0b0a8b28f78b8090f38c500770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b9be3d1470000040300483046022100e04d0e898382c57b902c373d8bba07363ebef44dd856a1125fd163cf2639cd08022100f79c133b10e9ce3ecccad1d08886ab3da00170d23618e09ab79b7900e54058a7
 . . . . [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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