DV SSL/TLS Certificate for zischka-online.de

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the zischka-online.de DV SSL/TLS Certificate

This certificate with serial number 05:c4:e9:26:0a:91:b8:66:40:26:bc:ef:ec:3d:a8:cc:ab:e9 for zischka-online.de was issued on by Let's Encrypt.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for zischka-online.de provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:c4:e9:26:0a:91:b8:66:40:26:bc:ef:ec:3d:a8:cc:ab:e9
Serial Number (int): 502566681219972930250049198686959666244585
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 95:79:5b:39:21:18:a8:d8:d8:75:5b:12:a4:3a:38:16:66:5e:af:c6
Authority Key Identifier: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (SHA-1): d9:4c:c0:c5:6c:50:cf:24:38:a3:f3:ed:bb:31:09:f8:fd:37:80:4f
Fingerprint (SHA-256): f2:c8:a7:af:a3:d8:4b:e4:c9:5b:14:af:f6:e2:55:d0:6d:7f:c4:e9:ca:2d:dd:21:fd:fe:6a:d0:04:42:e4:bc

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/106.crl

Check the revocation status for certificate zischka-online.de
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for zischka-online.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for zischka-online.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxPnWgfvmMhud+vGuiDTm
4l+7u2E3fvWbwodGfmTpgwQZ52FEeBSJ05gCoTm12HB+hKwFnXWp2u07IaWGOzqA
I6bQSSXuKgVXIjtrdPD7hezfP9hRVLeVak0kwSIaF0m1YLeWa4hRvLbV7uo1xBep
x/R4p3EX4B1rE+3eYpyavpTemwHRQLkGNzs0U4dEIrmFcjtJkSO1ilW/TYcqETwI
RMenzuZN4fHlU0NcWJBO9HnQ7KKOKal0E2MRxLbhCQLQLMkvjIgut729qWOIUF14
OeW7Y4UnMOM8cTVIKcY+pBmopWnPhHADLiN4XS1eC0/kV14R9ge0pte+v7mMIo7h
fwIDAQAB
-----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 502566681219972930250049198686959666244585
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-05-25 12:42:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-23 12:42:09 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'zischka-online.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
 . . . . . . . . . . . . . . . . [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 24865907443856969974482354110482066072832666122660606313880991140723807237910913315132450569213196148523030369056541475787118691293938694275387080809593034542456745247740070268645594939629772459636383909125061990779988330411995828205516170387853799613827775782473590969324350878912897574327980530385025792095708649618972790707536276485852938544871903657542884079807935580872835763933714675575825596697671362402805054488068756028643237683655029282396544095999642112596138116547127967123596562545395764414826639640667875101207502458771157421823094542430022779164613544693037845780229193320898531110233898551475352559999
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							95795b392118a8d8d8755b12a43a3816665eafc6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (44 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zischka-online.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zischka-online.de'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.c.lencr.org/106.crl'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db00000019707ac95cf0000040300473045022023efc6ffe492debd86cc9eff2c0063af62a9a2e7abda3460fd70d0e9561f9cfe022100b40d5b7a7dfedc38ddc47ef7f9d3fa8df2d750ac94d261683cfbb960a7ab72f5007700dddcca3495d7e11605e79532fac79ff83d1c50dfdb003a1412760a2cacbbc82a0000019707ac96110000040300483046022100a136991fed4cdfa9af0dc0baa6675dc0b3cdbdaa112d6142807c5dcf12203f060221008972b0e5974ec3654fae53c62eaf4bb6ac26af01dd90e1b6c67f25647f7b7a17
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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