tauwerk.de

Issued by R3

About this certificate

This digital certificate with serial number 04:eb:d5:53:19:ac:9b:cc:40:e9:4a:76:b1:57:20:e9:a3:8b 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): 04:eb:d5:53:19:ac:9b:cc:40:e9:4a:76:b1:57:20:e9:a3:8b
Serial Number (int): 428699056997938672119679958170231489799051
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: ad:4f:77:39:b7:90:cf:8e:8a:f9:47:68:ad:6f:41:63:23:b9:0f:a3
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e7:a0:84:36:12:bb:82:99:2d:a8:61:c2:f9:3a:4b:a1:cc:23:37:c3
Fingerprint (sha256): 5b:4e:44:05:7a:c7:46:ba:65:48:5a:9c:fd:25:69:67:e5:75:ea:e1:b5:df:b8:c3:b0:af:a4:2f:8e:2a:93:d0

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-----
MIIF8TCCBNmgAwIBAgISBOvVUxmsm8xA6Up2sVcg6aOLMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzEwMjgyMTA0MTdaFw0yNDAxMjYyMTA0MTZaMBUxEzARBgNVBAMT
CnRhdXdlcmsuZGUwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDIhkrc
5eQm4X/Z5KYzNccSHXOrpRiq8wE1fUctMFZRkkfx7z7VAO9rL10d5u0iS6ujMdB1
ufPhi+iVNLXvBii+120SeAs40NsF8ssIOjDOaGKN0JXcKPYLOUaKMgpLmZkikL3F
Il4pC7gt+zEzwrU57g969cXX3f0PIPU/PBrZdqIJOszhaS1B22D9OJgTaW+2zcfO
ZYllmhipVvZqml3T+ng3WgxwISVwJRt8Dpf8VsCiM9IP8I0fT5HGc12FIiP5BUSW
Xa6GmCdu1H+7iOQglzyMvsaWVcXb2ooCWotgAukPDoL6dl+n2ixkD0TOTh1b6jU8
pXwyBNTQ7tU7Ed4DgjSj47Jox1j5KcRHnSnObrqcucCb8h7tTjePzOqH7jD7223S
nBVGthkjVhfzTbq/YCJsfifmxXLP41h46t7f9TeqWAzxaNGwjyAp6WeqLgL4gRYH
SNDiLgRBkjVnwoT0NLXaxErHXub6z5HYQHTvdq1Rpblcbhi0wLCWIVfMA9YDgrjN
s/ONC08fbpL1AGSD9HjFhv5dpztF/nGPkXpPH8QK+x2g5GPFd9jCgCcrKdGOC/mR
iIJPrHb/lhTMW2Tzlk70iiEsLXMLuqma/0qwfDhFr0abL75DiqpRYUVK/4NJUjQd
OuAkG7CDvdyGvqinC6PFwIt+xCMTnmbXBAf4IQIDAQABo4ICHDCCAhgwDgYDVR0P
AQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMB
Af8EAjAAMB0GA1UdDgQWBBStT3c5t5DPjor5R2itb0FjI7kPozAfBgNVHSMEGDAW
gBQULrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUH
MAGGFWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3Iz
LmkubGVuY3Iub3JnLzAlBgNVHREEHjAcggp0YXV3ZXJrLmRlgg53d3cudGF1d2Vy
ay5kZTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA
8AB1ANq2v2s/tbYin5vCu1xr6HCRcWy7UYSFNL2kPTBI1/urAAABi3hRBBQAAAQD
AEYwRAIgL0ArxPbU6D7ARmpZ66vTN8W4urqIobMgVvpVny/H4sACIB1AiwuSU8yZ
HSyAVY41+kiYi7XqAfjcntyMLN7VaNDmAHcAO1N3dT4tuYBOizBbBv5AO2fYT8P0
x70ADS1yb+H61BcAAAGLeFEF9gAABAMASDBGAiEAos5Sv/MWAhHmSyGD90U4FBQQ
Xqycg01yeFvp5jVv+/kCIQC8dv+INqRYLZsIsH0uti2EHnC1i1OcvkQEeXsjawew
0TANBgkqhkiG9w0BAQsFAAOCAQEAiX9hWB1MmwAySLtvL6q6bZc7ll/8gVvgNg3C
oYjrXjXBHuldhSvi3eTChbxCc7BsQUTdiJWWaasTO7fm62b8sgLx2gAh4G90tyww
y1DBznAPwQgnCtJ5LPBukDcbsVAFGsi4CCnasHcxiqnc2QxeZFzAx0K5fM/tTt4E
uMGAuV/eZ4ILvScnslWro/Civi7oDLSd4g5sBIN4QjFJ8QlHgj91qlIDuPp0uAje
Rqxqfqgu4wR9SLGs8MYc2uhvCLyCFZUono5aLqyHmdV1i6wduXBA/AAq0Z8TcG9o
GIWwHrD3eFnYDx02vlgQTRQkNy/C5DdFg7schC1zqn7KhZbuiA==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 428699056997938672119679958170231489799051
 . . . . . . . . [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 2023-10-28 21:04:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-26 21:04:16 +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 818068912542400390915585779561415838787305451852290878832640004794752559048776983284217024636239398313825400138555008740843767331779730857183823241217931309867370903635398472725365346623976908930627981251958763888429507835063174503424904438212007611303633020657208499162158784761140929807677581416579037415583147937636845245173270915010564619457425782978047725002001515451381831465480140058516107224681917516603995463314668581262565841211423790239332323404782575485583584727471832638966063365062057621007446794179074747042618950203170963676084855074561076670913552844371300235015689066579845181317763781639659841327540056958940373155279160005479591662084011944750145645288075120210016410310577019345752791370475537506652347264270505240805350372274033401468252744506891657126173789817771493206766164483465153188799427186171335001527454911047292476517136097338253533045430566613547653093123451580660402178088920270794925830602732737590456396824960442399871501368067618177774091023606358400036810725445380370619946670347358595294549763931005598183276121048584342585646665122521769395405903399050861844992159968959745928213954354757617252615755358987239969598778700079455088267522790353639194481550443982016163247189228895425787788261409
 . . . . . . . . . . . . . . . . . . . . [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)
							ad4f7739b790cf8e8af94768ad6f416323b90fa3
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007500dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b78510414000004030046304402202f402bc4f6d4e83ec0466a59ebabd337c5b8baba88a1b32056fa559f2fc7e2c002201d408b0b9253cc991d2c80558e35fa48988bb5ea01f8dc9edc8c2cded568d0e60077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b785105f60000040300483046022100a2ce52bff3160211e64b2183f745381414105eac9c834d72785be9e6356ffbf9022100bc76ff8836a4582d9b08b07d2eb62d841e70b58b539cbe4404797b236b07b0d1
 . . . . [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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