zer0.de
Issued by R3
About this certificate
This digital certificate with serial number 04:4b:6c:0c:9d:58:56:f6:d5:74:d3:51:fa:51:f4:b6:f8:a0 was issued on by Let's Encrypt.
With 9 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=zer0.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:4b:6c:0c:9d:58:56:f6:d5:74:d3:51:fa:51:f4:b6:f8:a0Serial Number (int): 374113943368555744867636736629446880458912
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 28:14:70:10:88:c8:8c:f6:a3:ea:2b:c1:bf:2b:f7:8d:8e:1e:3c:b8
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): cf:ce:ed:79:a4:8a:39:3e:a0:e9:90:21:03:c7:68:d8:ce:50:15:61
Fingerprint (sha256): 5d:7c:49:e1:a0:0a:d2:79:88:fa:2d:77:37:a9:b2:6d:8a:4d:26:b8:43:0a:ed:d4:5c:00:aa:96:ee:3a:af:d5
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate zer0.de
9
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for zer0.de
Public Key Algorithm
ECDSA
Key Size
256
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
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
adrian.photo
cloud.zer0.de
stachow.ski
www.adrian.photo
www.stachow.ski
www.zer0.de
www.zer0zone.com
zer0.de
zer0zone.com
cloud.zer0.de
stachow.ski
www.adrian.photo
www.stachow.ski
www.zer0.de
www.zer0zone.com
zer0.de
zer0zone.com
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cloud.zer0.de
idmdev.marum.de
zer0.de
zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
cloud.zer0.de
cloud.zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
zer0.de
zer0.de
groupware.zer0.de
idmdev.marum.de
zer0.de
idmdev.marum.de
idmdev.marum.de
groupware.zer0.de
autoconfig.zer0.de
zer0.de
zer0.de
zer0.de
cloud.zer0.de
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idmdev.marum.de
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idmdev.marum.de
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zer0.de
groupware.zer0.de
cloud.zer0.de
groupware.zer0.de
zer0.de
zer0.de
zer0.de
groupware.zer0.de
cloud.zer0.de
idmdev.marum.de
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zer0.de
groupware.zer0.de
zer0.de
zer0.de
idmdev.marum.de
groupware.zer0.de
zer0.de
groupware.zer0.de
nas.zer0.de
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nas.zer0.de
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zer0.de
cloud.zer0.de
idmdev.marum.de
zer0.de
nas.zer0.de
zer0.de
groupware.zer0.de
www.zer0.de
groupware.zer0.de
groupware.zer0.de
idmdev.marum.de
zer0.de
cloud.zer0.de
zer0.de
zer0.de
zer0.de
groupware.zer0.de
zer0.de
zer0.de
zer0.de
groupware.zer0.de
zer0.de
www.zer0.de
cloud.zer0.de
groupware.zer0.de
zer0.de
imap.zer0.de
zer0.de
zer0.de
zer0.de
cloud.zer0.de
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cloud.zer0.de
idmdev.marum.de
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zer0.de
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cloud.zer0.de
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idmdev.marum.de
zer0.de
idmdev.marum.de
idmdev.marum.de
groupware.zer0.de
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zer0.de
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cloud.zer0.de
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zer0.de
Certificate
The complete raw certificate details for zer0.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIEjDCCA3SgAwIBAgISBEtsDJ1YVvbVdNNR+lH0tvigMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAxMTExNjE0MDVaFw0yNDA0MTAxNjE0MDRaMBIxEDAOBgNVBAMT B3plcjAuZGUwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARyIZKAgKqZgEL5LPWM ak0RAWMTy1qK8sY4z6ENi0sXVnkpFcQLRiO2AfAhoAt/0K246hjbE0V5txQBdOFV qYfeo4IChTCCAoEwDgYDVR0PAQH/BAQDAgeAMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQoFHAQiMiM9qPqK8G/ K/eNjh48uDAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEF BQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggr BgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzCBjgYDVR0RBIGGMIGDggxh ZHJpYW4ucGhvdG+CDWNsb3VkLnplcjAuZGWCC3N0YWNob3cuc2tpghB3d3cuYWRy aWFuLnBob3Rvgg93d3cuc3RhY2hvdy5za2mCC3d3dy56ZXIwLmRlghB3d3cuemVy MHpvbmUuY29tggd6ZXIwLmRlggx6ZXIwem9uZS5jb20wEwYDVR0gBAwwCjAIBgZn gQwBAgEwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdQBIsONr2qZHNA/lagL6nTDr HFIBy1bdLIHZu7+rOdiEcwAAAYz5hEmLAAAEAwBGMEQCIHLo4OA8wQAJCbLIkLRt deAESQPSj8gEYQgkXWB5keCjAiBQDHZ8l1cNnHLmLe69W5VEVp+2Uxuhc/JUWTTo lfHJKQB2ADtTd3U+LbmAToswWwb+QDtn2E/D9Me9AA0tcm/h+tQXAAABjPmESYcA AAQDAEcwRQIhAN09OBBjShmh2Pr+nq/i1xbneg7kpbRA6w80XiQDuinUAiAUEWNc VulOg70XAafh8V8On1twG3Ue0tSdLA/wKCzHsTANBgkqhkiG9w0BAQsFAAOCAQEA RPMNbL0u/vhdVDP3dMnC/cpuOmKxyyA588EN0cwsEX7CwAoVuI1Pg3pAkBhLahFC 8Qah+Ctf0+SIy0tQ9Cq82MAj6Kd7Sat9fEvZJ8jN4wncapctvQRIFQ1A9Rndix/I EzROFa08QNL9o4xQof7wOZI2sBpQGdek7DTSucpIMQSAuYFeG/IaojeenxXLCxcn MSWYbCNf0MQKkAAmM9dNOyctbJKSVTEx5FXws4Iiygz+pJvjCOpefeXHZRCLvRpr QzExphki5Ncrp++IRRR9Ry1i4Jh2OmQC+MuTK8hwOX9XMq/NGZynmS33jYp5nAXq SBuQBrHR2589X+gZqE6wdA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEciGSgICqmYBC+Sz1jGpNEQFjE8ta ivLGOM+hDYtLF1Z5KRXEC0YjtgHwIaALf9CtuOoY2xNFebcUAXThVamH3g== -----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 374113943368555744867636736629446880458912 . . . . . . . . [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 2024-01-11 16:14:05 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-10 16:14:04 +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 'zer0.de' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey) . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1) . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits) 00047221928080aa998042f92cf58c6a4d11016313cb5a8af2c638cfa10d8b4b1756792915c40b4623b601f021a00b7fd0adb8ea18db134579b7140174e155a987de . . . . . . . . [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 (1 bits) 0780 . . . . . . . . . . . . . . . . [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) 2814701088c88cf6a3ea2bc1bf2bf78d8e1e3cb8 . . . . . . . . . . . . . . . . [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 (134 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'adrian.photo' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cloud.zer0.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stachow.ski' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.adrian.photo' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.stachow.ski' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zer0.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zer0zone.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zer0.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zer0zone.com' . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cf984498b0000040300463044022072e8e0e03cc1000909b2c890b46d75e0044903d28fc8046108245d607991e0a30220500c767c97570d9c72e62deebd5b9544569fb6531ba173f2545934e895f1c9290076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cf98449870000040300473045022100dd3d3810634a19a1d8fafe9eafe2d716e77a0ee4a5b440eb0f345e2403ba29d402201411635c56e94e83bd1701a7e1f15f0e9f5b701b751ed2d49d2c0ff0282cc7b1 . . . . [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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