mailman.schlittermann.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:6e:40:e4:6a:42:df:82:f6:04:f3:8a:67:c5:bf:57:98:e7 was issued on by Let's Encrypt.
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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=mailman.schlittermann.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:6e:40:e4:6a:42:df:82:f6:04:f3:8a:67:c5:bf:57:98:e7Serial Number (int): 298854174747231601669766765717038948653287
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: b7:7c:5f:ff:b2:83:9f:90:9b:04:45:56:cb:32:59:e3:9c:90:82:be
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 78:dd:de:da:56:04:bc:ad:af:ac:9d:09:22:4c:76:c9:61:74:83:56
Fingerprint (sha256): 48:2f:18:c6:01:76:09:3a:9d:95:e1:a9:92:0d:72:f0:00:0b:e2:e9:44:f8:4f:26:18:1b:b2:f8:b9:7a:f0:6f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate mailman.schlittermann.de
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mailman.schlittermann.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
mailman.schlittermann.de
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accounting.schlittermann.de
accounting.schlittermann.de
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ssl.schlittermann.de
ssl.schlittermann.de
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www.schlittermann.de
w.schlittermann.de
Certificate
The complete raw certificate details for mailman.schlittermann.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGaTCCBVGgAwIBAgISA25A5GpC34L2BPOKZ8W/V5jnMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMDMyMjE3NDdaFw0y MDA2MDEyMjE3NDdaMCMxITAfBgNVBAMTGG1haWxtYW4uc2NobGl0dGVybWFubi5k ZTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAKBIcjBKBBhVMrEjmMPH VY82NuVYhnnj0oW+GLECHZ1HmhFKZjQBOF14isBvv6LeyniywK23ecLxYlMOy/FN bbPc3COyKd77m2waHtW54izpKQK5L7UdZXkfiL4dGhR/j7Jyl7Hiz6z1Bv+zYqcW OtIw4IDnG+DeFHAM7cF8Ov+/tqd5pSKs2SqCfi4GTmJvI997+fgbj3Esv50EwdYO 0GMMngtq2eBOfB7pu2rg2BnGZh0GsOrp0inKrWokZ72W4ber2kr+6LuF84h91eY4 3jRO1UHtRLw2rUVldcBAwXbvPaypYDvj5cg+Dln+9I/+2pgZVEZXkPFcRmUfdG7+ f7YK+aY6oXSlgz5htCAF9RG/aviIRFc1YC4P7h1byJqzi2gjfPdADdu+QU5wwi9V rTW++jWE5P71/wI9Ep0WDPPoJQ58HZHGuK1o1FSmhVSepB+YUT07shEDHCQXDOqr RmMtm7Br5S/nH0OyB4TCOTB6ulOHkWlVcOuiRw+t+JWXsecizfqYX4DLm/BxppZ2 R2JVL5gmQ58kGaKKVZygJ6sRhxRYmhqMV0GfuZNgCeI8XhgVXumy5c4OELHG9xBC yS77MpGw9kZ9/DkTAeE59T5Uvw6zZ8LCk/8OREkExv1fGZWq1zgDdSAVdkOeNnt7 4TPwqc2pP3yJyuFtxgtJ/MBzAgMBAAGjggJuMIICajAOBgNVHQ8BAf8EBAMCBaAw HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD VR0OBBYEFLd8X/+yg5+QmwRFVssyWeOckIK+MB8GA1UdIwQYMBaAFKhKamMEfd26 5tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDov L29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDov L2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wIwYDVR0RBBwwGoIYbWFpbG1h bi5zY2hsaXR0ZXJtYW5uLmRlMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQB gt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3Jn MIIBBQYKKwYBBAHWeQIEAgSB9gSB8wDxAHYA5xLysDd+GmL7jskMYYTx6ns3y1Yd ESZb8+DzS/JBVG4AAAFworDnJgAABAMARzBFAiEA6/nS13efnwA9QKm+tEd/xk+y C7KR4gdTgWAJ6NEgMkUCIBcp4N+PdMCc5y4AZFkzl2tN6L0GqHltSn2LJtL37E1x AHcAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklTLe+LkF4AAAFworDnHAAABAMA SDBGAiEA3g1/4rn2SMgnxXyDvrLxQbUhc1n4u/auSVblJFSBfP0CIQC8ANt1FixS SPZpxFXJVVu7lrDiPLNtxZ/HIc0KO0Y4/zANBgkqhkiG9w0BAQsFAAOCAQEAefDt 3VieFkcPMW10OX7fkmJ3byyW93rfHRGACWvV/F10eLDdvsM4zkljO6TLpp3uh/FE F6nXEN8XiTcwirTuApe4TZUUiV0017YGq7xZ1pZ2uJU5AREYQg0NXQ5eL0AxCaxx d/fLUrFwJi7/RbNZxP9PJJLmJMC7UolNUArrw/Jk469EDVBAESk2uu9hWIXrDJIY Jkg1gWAtz7kB0Vx2OJGIfVxa+FTIM56+QlQC9fNs1FwCLxKWiMrKS6NnQC/cFPb4 2iATfl9iok7km0sRmI4XrGvxfaQY3GVVY2SvOe1A+1LhOTphTpM5zgd2AqEI8ak8 6kWIk9O1dkEFFsmN/g== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAoEhyMEoEGFUysSOYw8dV jzY25ViGeePShb4YsQIdnUeaEUpmNAE4XXiKwG+/ot7KeLLArbd5wvFiUw7L8U1t s9zcI7Ip3vubbBoe1bniLOkpArkvtR1leR+Ivh0aFH+PsnKXseLPrPUG/7NipxY6 0jDggOcb4N4UcAztwXw6/7+2p3mlIqzZKoJ+LgZOYm8j33v5+BuPcSy/nQTB1g7Q YwyeC2rZ4E58Hum7auDYGcZmHQaw6unSKcqtaiRnvZbht6vaSv7ou4XziH3V5jje NE7VQe1EvDatRWV1wEDBdu89rKlgO+PlyD4OWf70j/7amBlURleQ8VxGZR90bv5/ tgr5pjqhdKWDPmG0IAX1Eb9q+IhEVzVgLg/uHVvImrOLaCN890AN275BTnDCL1Wt Nb76NYTk/vX/Aj0SnRYM8+glDnwdkca4rWjUVKaFVJ6kH5hRPTuyEQMcJBcM6qtG Yy2bsGvlL+cfQ7IHhMI5MHq6U4eRaVVw66JHD634lZex5yLN+phfgMub8HGmlnZH YlUvmCZDnyQZoopVnKAnqxGHFFiaGoxXQZ+5k2AJ4jxeGBVe6bLlzg4Qscb3EELJ LvsykbD2Rn38ORMB4Tn1PlS/DrNnwsKT/w5ESQTG/V8ZlarXOAN1IBV2Q542e3vh M/Cpzak/fInK4W3GC0n8wHMCAwEAAQ== -----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 298854174747231601669766765717038948653287 . . . . . . . . [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 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-03 22:17:47 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-01 22:17:47 +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 'mailman.schlittermann.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 653897559068435946223311423708631233992852129861229127423031864283827924546775614333966758948261779380614391994027028394842961110356184563959070062818530693925278226379238656434200552464737508768501027907088110612524364314029163412007046208372413371226528319894509896262915478036083281305278647757948291723430482397396879865135359157617852733058584846961876756552724273928459101318227995344176215623455883490636092778105018766142448198972976746304069809011089746066692569061816135640038440218144121703956925845400923079199227861598773394867871057318035394415227037609508318336506681266155737895353362199720871905768950409505342657592326071251093096905362894338011893125386642407677009858781103263045866702312520484621726143583597066522401031698536113160715265407050110068910862380605398234766107943924640718674597550081215973329447774654948968688117352688079368426042714826775403298657563845614479855407184598227295072298392348380661473597952948298408359041822688584112642986175942267877349140276247340952032055621328218082086659535176620842428073380467189027848026089605666703126872216439177013754266397342308958619436552716231791488832612641427593084948649772179979372869931280059034691420468650679116317176831607897227527620182131 . . . . . . . . . . . . . . . . . . . . [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) b77c5fffb2839f909b044556cb3259e39c9082be . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mailman.schlittermann.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 (69 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 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [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) 00f1007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170a2b0e7260000040300473045022100ebf9d2d7779f9f003d40a9beb4477fc64fb20bb291e20753816009e8d120324502201729e0df8f74c09ce72e00645933976b4de8bd06a8796d4a7d8b26d2f7ec4d71007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170a2b0e71c0000040300483046022100de0d7fe2b9f648c827c57c83beb2f141b5217359f8bbf6ae4956e52454817cfd022100bc00db75162c5248f669c455c9555bbb96b0e23cb36dc59fc721cd0a3b4638ff . . . . [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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