tauwerk.de

Issued by R3

About this certificate

This digital certificate with serial number 03:57:f6:3a:97:ef:15:6b:3d:f4:8d:ec:a6:54:d9:b6:93:aa 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=tauwerk.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:57:f6:3a:97:ef:15:6b:3d:f4:8d:ec:a6:54:d9:b6:93:aa
Serial Number (int): 291268718039169280411078026113205442876330
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 99:6c:97:6d:3f:a6:b8:dc:bf:52:73:54:37:65:7e:03:2e:52:09:13
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7b:52:df:9d:0c:11:3f:a6:a8:20:fe:bf:d5:7f:33:83:67:d3:b8:0d
Fingerprint (sha256): b5:70:f9:d6:db:61:f3:08:09:52:6a:50:f8:34:fb:21:5e:f1:e7:4a:30:64:0b:4b:65:d9:dc:d9:64:38:b9:ee

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

Revocation information

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

Check the revocation status for certificate tauwerk.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for tauwerk.de

Public Key Algorithm

RSA

Key Size

4096

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

tauwerk.de
www.tauwerk.de

Other certificates including the domain name tauwerk.de

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

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA4GQyfZJXeJ+fSeDokbdM
c0NtkqP9yXLsBR1Xv43Af40jCEG7H1CxFjGgBWbuk3f2nRrhPZmNG3uDs//KLQBX
zT7tcOpeEYcMxP2ojOoyKK8SWl/mnwZTJNr6avNIpSSXG8l3/yY5/0P3Pk6qytNf
iRFGsxb/zgA/Tbx7kDvxZbGCbsCN8APATJHqMJMEsWjBMIhmBUwEtphmIYKNLSin
L9bhM7wBt3HIfThqWAGD1jVzKL7r8crGUNxXDXcZ5PQyL6+iMEbHLDABRdbq0OVH
NUihYjoI2+Egfsg18PJ3HWveX3GT0PIsANPiQnvc3GmzpvGz+kyCg6A1DH58CNiQ
IHxf2Gt+FVu6clGh4uQDWUggWhHb52iI8Exvy646WAvn3sqpXmkgB37zjY+TBCxD
J+6cJRnyB3F5nVHrvKiE/PK9TJsqjUJVLuaNp1UuWcUSyzsGkNSuSvhWOxrMhANJ
Z7qiYBRM8WGld8+HqWmFEy0hbUhDOuDkHsqJMlOfDraV0fB/777Bh8QJakkFN2r3
VyTVVPLmZH1CPYUiVj85VbXoeUtKMpoFnqK1wpBhzq4PwEfIxRmRVmG+Vb2LZXL7
bD/5uCuMQ2NQD/UALeVsQKtE+jwuKr3R6/gQyJjT9t16AL3n48aoomHqFUcg/bNP
uuzVPHnKDz8sH/eevTQDdF0CAwEAAQ==
-----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 291268718039169280411078026113205442876330
 . . . . . . . . [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 2023-12-26 22:04:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-25 22:04:14 +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 'tauwerk.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 915437025256714953817088236251612492083262025870418963256154208224736959622294698163919042520933575633812794696315096889887284993864855758004820498619161666928729567649946871104148929979130522306521617102228368038470175167183873447713976790374308972753448050533109762139161954377543821257651911645703361998971859969634340361617015304717916350243462809109165733202019362625554419953994049402128762414533418685977725292394718893203198657145530837003100123286847802165510495311864414098317479395108224898192590985858542126157879899996277591780959737984673125934232681839736708660202225866050968842183497125797802202959783158589754598307392027254655611030215474982563941878299874789047031013973080298846046906101240815882427659223156097881794652615176603757139795571369057974407407730206317073524879709518468820843922531684636171433860980812761298745392717281273223600901568919236796755648699565291414936663700072617033551115376817875519080192266703282304597882683857115083838319950496098751258173763418097489917478196021784155794646396735109875584185930089118201921334210191037554842078019941984661620696982917540319980037835160889314277381491372052951162615182674456186103004860887999822073503887160331202030895266469205390784941225053
 . . . . . . . . . . . . . . . . . . . . [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)
							996c976d3fa6b8dcbf52735437657e032e520913
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tauwerk.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.tauwerk.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ca85f1f71000004030047304502204364256b5b96801814a82768f6858af6c1062e6bcacd92a1dd41b1e419995beb022100fc549934af06f8d7a92bc0aec8e5680a5085aa992475ea34b783af2dbe9a92c10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ca85f1f7a0000040300483046022100e9cf2b88ef7c75c0c2d1a9fa94d1febf30e5752e312794a765b0452e5061a9b6022100accddd8c1e4453c7aaef37611cfa3d10ae620cbe082d48e3442824355da4a3e6
 . . . . [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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