mkb-steuern.de

Issued by R3

About this certificate

This digital certificate with serial number 03:af:db:7c:43:0c:ac:1e:8d:fe:7f:b6:3e:d9:6a:a4:24:4e 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=mkb-steuern.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:af:db:7c:43:0c:ac:1e:8d:fe:7f:b6:3e:d9:6a:a4:24:4e
Serial Number (int): 321178018142257775695599426273522206647374
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0f:87:93:05:0e:36:8a:d6:98:ba:51:d9:01:37:4b:4e:d6:6b:7d:ac
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b8:8d:7f:4e:da:c1:ae:15:34:97:20:42:7e:94:9b:2f:3d:42:86:74
Fingerprint (sha256): b8:07:34:87:0b:15:32:77:d3:e6:f7:07:e7:fa:35:7e:d3:24:6b:73:d3:2a:5a:d7:b1:4f:78:e8:cc:c9:01:c3

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

Revocation information

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

Check the revocation status for certificate mkb-steuern.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mkb-steuern.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

mkb-steuern.de

Other certificates including the domain name mkb-steuern.de

(limited to 100 certificates)
www.mkb-steuern.de
www.mkb-steuern.de
www.mkb-steuern.de
mkb-steuern.de
mkb-steuern.de
mkb-steuern.de
www.mkb-steuern.de

Certificate

The complete raw certificate details for mkb-steuern.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2ED5uTv2mDgpgCnsywEN
4EjAuCJHy6m64xg6vb33ehGgy3TX/ukO4G8HQ2X9f5cuQQnAOj2ZGflAOBxtu+I+
DtZ80SDa38EIbnQZd855gvW8xSVlXlZZ2bOy18XHQXjODpvMzSDyFjlNpaCjFdfH
aRq2/eiP5jxblpyupOTTmpknMvfkPb9NSIp72xWn7YiblSeZFGyspnbqHdYEULC5
KBW5JuxNfdFBmkEVDmPkcfgcRQ7P6n49hBRCT7GkjDQesEJtbpFbeUjtfK6lAxIP
1aCOFOXb9TsSQN4bHFiL+U+I8Ikccyrn862863MckzGDjs23ifnBxiKJECZzcLSn
nwIDAQAB
-----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 321178018142257775695599426273522206647374
 . . . . . . . . [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 2024-02-15 11:16:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-15 11:16:32 +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 'mkb-steuern.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 27299514477357755067122805106732103568533748894563182797331448798092136973669880670280536646554001220864534073631533866221723764995745315289886211209881394815492723639038863039455624115925500204419012897294059921942614648929548297870544863950055005813923949231937048453807933285424352152032826576183579505712798274536570052502798669023678580747033144253112625761836365931014194631213936131338607960626383876120214852953276601391792386249785748804643903929205973032096146995470130001005779248931132758554426569724105698195635888696448599956033564369049783518888039145008531279689515373075231253649494598502064185452447
 . . . . . . . . . . . . . . . . . . . . [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)
							0f8793050e368ad698ba51d901374b4ed66b7dac
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mkb-steuern.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)
							00f000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018dacb277c30000040300473045022100e976889be1583aed056731689eb63eebb7c1360cb72bdf7d8645e1eca6e08f7e02203cdbed4e5c873709240f07e38e1091176d8f0ddc9b5c505780135872f3c205b9007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018dacb27984000004030047304502207b030733ba1a454f164e172f124b9e56338e552e398554fccf1de9f917e41925022100b6642ca87527e8c82844e3e56277c0629e18dbab59890e3b1a01f27fbcae1250
 . . . . [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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