www.karstenbrand.de

Issued by R3

About this certificate

This digital certificate with serial number 03:56:c9:d8:0d:74:11:d6:c2:07:19:8e:2f:b2:a8:3b:59:c5 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=www.karstenbrand.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:56:c9:d8:0d:74:11:d6:c2:07:19:8e:2f:b2:a8:3b:59:c5
Serial Number (int): 290869437986622971981632147968999739316677
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: bb:43:32:d8:22:77:a9:fc:c9:0a:32:03:47:43:23:5e:84:6d:16:8a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 36:6f:c7:86:73:2d:f9:4a:ad:f8:38:86:a9:17:5d:f6:ab:ac:76:9f
Fingerprint (sha256): f6:d2:78:65:b1:99:da:82:6e:9b:89:2d:28:3d:a0:bc:1d:40:fe:66:60:d6:6d:6a:7f:68:32:9e:0c:d7:eb:a8

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

Revocation information

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

Check the revocation status for certificate www.karstenbrand.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.karstenbrand.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

www.karstenbrand.de

Other certificates including the domain name karstenbrand.de

(limited to 100 certificates)
www.karstenbrand.de
karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
karstenbrand.de
karstenbrand.de
karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
karstenbrand.de
www.karstenbrand.de
karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de
www.karstenbrand.de

Certificate

The complete raw certificate details for www.karstenbrand.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzpbqkAzNrIaTZ7DmN2V+
wcrawsRKHy8KVQW/n/HqLjJMbLt1bSbQR9REcGiYrv7cpLiqXGDhI1LIKmceae7K
mW+qxGP/tm2uryMU3uz3LG59qD9XABa6VnahRPN18092Gf09OkaDiKBxlpqCKx/z
OD0DX5bNrn8g8hjE6Uwzc/9F/JtW/vKclFHbEKMh1zq3G6XQc5Co+ft8QLRSHFZG
4IlIlcyeLXbmH0/Mh/S+cn9HgksDI4EaGYW7rBuy8XIA0xqt6erarkQOTNzlEYAG
YcbJCpvWCJ2nU4l8R9v7McqidiDgo5U6T/UTAKJb4sR06mlOjAOoMx/Qs0rqIK8u
3QIDAQAB
-----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 290869437986622971981632147968999739316677
 . . . . . . . . [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 2023-10-30 09:31:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-28 09:31:51 +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 'www.karstenbrand.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 26079510404730606505552356894898846904877000267233706593343146490223416577122956415025809677022614235590505904100656714886727260139944832003559267203253597889344060520352040386954833621830115077915847164428719374112231861316567061274982781734940775726619021455098944247078753447600208350574734971127719591547117623346083188894701094270030968020837986560580176961792167413116896440151173070368197722786023858011911223144639602775713540339807694993594179016853496903160286133099839963794416202769159243020710053585465272109336947663673405700615556882000231472464572676233804644820431025498004514877137658682500264701661
 . . . . . . . . . . . . . . . . . . . . [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)
							bb4332d82277a9fcc90a32034743235e846d168a
 . . . . . . . . . . . . . . . . [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 (23 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.karstenbrand.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b8023ce250000040300463044022064188581332aab8473f6ee6155dd45a77a1bcd1ed2a6ef752a6b5b5bb80f2efe02203f30e5c485003e2f50b4430fd39133cd2a48ab26c157d8048e480cc99c8c93b00075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b8023ce21000004030046304402203c42c82cdc0b5ee0a4b78520f4cdf69a521f2b263869f6bae07718322acd35fd02200bb12a99821d7e93b3d9ce3885fa53cc635602735509c85ec15af778981ffabb
 . . . . [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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