www.knallhart.de

Issued by R3

About this certificate

This digital certificate with serial number 04:d6:7d:18:c7:d1:8d:79:47:c1:2f:90:19:8e:50:d5:ae:e0 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=www.knallhart.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d6:7d:18:c7:d1:8d:79:47:c1:2f:90:19:8e:50:d5:ae:e0
Serial Number (int): 421435852415521518185058137719736230063840
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 28:a8:e9:1f:05:61:9a:b9:8c:15:ba:ee:50:47:68:b8:0c:82:8f:00
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): dc:44:71:61:aa:21:4c:0c:e5:6a:2d:3d:12:b6:35:04:9b:8a:38:49
Fingerprint (sha256): 21:65:40:6c:99:15:93:a2:47:ae:a1:81:02:2b:78:2a:6d:20:b9:1e:d9:98:8e:d1:52:65:de:93:5d:07:86:26

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

Revocation information

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

Check the revocation status for certificate www.knallhart.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.knallhart.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

knallhart.de
www.knallhart.de

Other certificates including the domain name knallhart.de

(limited to 100 certificates)
mail.twooit.com
ssl.masterlogin.de
mail.twooit.com
www.knallhart.de
mail.routing.net
www.knallhart.de
*.knallhart.de
www.knallhart.de
www.knallhart.de
www.knallhart.de
www.knallhart.de
mail.twooit.com
www.knallhart.de
www.knallhart.de
mail.routing.net
www.knallhart.de
www.knallhart.de
ssl.masterlogin.de
ssl.masterlogin.de
www.knallhart.de
www.knallhart.de
www.knallhart.de
www.knallhart.de
www.knallhart.de
www.knallhart.de
ssl.masterlogin.de
ssl.masterlogin.de
www.knallhart.de

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4kUmHyPGUVXt0MVmaUCM
pMohOL3upbmG0E0N8VA2Qz4s2uT8HUx/hrTfoVNh8Ko4tzGit1wnKzQSA1tiHczy
SHCFbuqUbdtxQ9ZlkJuIscEeV4gvIiqHXFp7myTjHbLuDuVw0MtHcuoCtqJrd03Z
AFp3Tny5QhsFIPomIoDoSRQDCn9zfKxM0pMWiJcIP11JsLU4RWClLq373CQO2URY
fzNXjXmTA5fAP8/z+pYHBhYUCIeAoweqWH/pJobvzfImr1hJ4dC7LH3zXq7vJjQc
6aUkpFmAxLb49vettafWoazb4t8R4517I0Gvq8wWpxjzzxp1AJiYRxVMGIkfE+Oc
mQIDAQAB
-----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 421435852415521518185058137719736230063840
 . . . . . . . . [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 2024-02-19 10:01:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-19 10:01:32 +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 'www.knallhart.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 28563955522031544466690336239761300444117554541154115255494094144684688004231061760314031945353298989925558990475599654389851079930509837794002609844125133841653022007548574789604346262145119715390252093260603007645721661306311381106305169166181261677111124972572582959731392957188279758005155309268836919804714451644276531793167001766573078326704822201243715857699196751461909537536033012534905517980261587507561121165292769700706963756156781109373642762947049102811800406654159834343038794529275758098212242168176723402902871623964884702631417708911429517028214502526235641742606974526488173388989366808350883552409
 . . . . . . . . . . . . . . . . . . . . [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)
							28a8e91f05619ab98c15baee504768b80c828f00
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'knallhart.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.knallhart.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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018dc1073cc30000040300473045022100a29a968ab815b8cf531848c7f5d1587fa28ba69d048ee2d76f1cbaa1667db2740220364fd4592ddbd38a2a3c8b560a79f34917e86559be7c3149e8529d40aba7a4cb007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018dc1073ec50000040300473045022100dac2148ef1287a97ed60f1d77bdb3edb4a357ff00032e777c3fd5e8e299e22da022056ba222c36070cfef54624f99c9c1f6fa7df0a165fda022964ce148de6b12490
 . . . . [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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