siekmann-ingenieure.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:b0:a4:67:96:a3:ba:f1:68:41:e1:31:05:4e:d3:03:34:b4 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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=siekmann-ingenieure.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:b0:a4:67:96:a3:ba:f1:68:41:e1:31:05:4e:d3:03:34:b4Serial Number (int): 321445085626584551892693919682849069544628
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 70:da:9f:e8:e4:c1:1f:58:c8:ab:7b:55:59:f1:33:7b:c0:04:e6:4a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 98:b4:fb:b6:36:3b:f0:e1:98:31:13:b1:06:eb:b6:5c:86:e8:20:b5
Fingerprint (sha256): ab:73:d9:7c:18:69:7e:58:25:c6:d5:80:a9:4f:95:09:d7:43:f3:a9:d2:c7:f0:5d:5b:6a:2d:1c:4f:8f:d7:33
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate siekmann-ingenieure.de
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for siekmann-ingenieure.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
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
siekmann-ingenieure.de
www.siekmann-ingenieure.de
www.siekmann-ingenieure.de
Other certificates including the domain name siekmann-ingenieure.de
(limited to 100 certificates)
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
Certificate
The complete raw certificate details for siekmann-ingenieure.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFfzCCBGegAwIBAgISA7CkZ5ajuvFoQeExBU7TAzS0MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjUyMzE2NDlaFw0y MDAzMjQyMzE2NDlaMCExHzAdBgNVBAMTFnNpZWttYW5uLWluZ2VuaWV1cmUuZGUw ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQD2o5QkMaZnWfVD8vD5ZeKS now3ttzhTAtLk0rnhTJv4lMWh1nDQPJro6Zt5ugQxIP88sNgJoVlIke9k0d8rYC5 AOj3LC74NqA8SDGv3Z3EktGVcIM8D+N9QNckB28NpyZj3cGLoihlOKJ1N5QLuSda L/l+tb0qdrHUCMYMNAlnzvTjjdaY3FHyBuNY1PSwk9z8Oza+masCqZTkmX0zC/Ro 4kjfnbGGx8t3iiYR0unkXCIm0ItcxR4WJY2b1NBZ6VJmQgt8xt29JT2LDf4oSDcB OcQmqDGyck5cS02hn08H9AA9158rJQwqefKR09T+NZZdLV5hnv3whf7WPaY+yMyt AgMBAAGjggKGMIICgjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFHDan+jkwR9YyKt7 VVnxM3vABOZKMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wPQYDVR0RBDYwNIIWc2lla21hbm4taW5nZW5pZXVyZS5kZYIa d3d3LnNpZWttYW5uLWluZ2VuaWV1cmUuZGUwTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdQCyHgXMi6LNiiBOh2b5 K7mKJSBna9r6cOeySVMt74uQXgAAAW8/kCZHAAAEAwBGMEQCIAFogS5/dEOuVEV1 tBoghbN/piJEC7u2h4vEYPz7wy8OAiAEExrj6jZLkmAAXpg4GWsC0DnVT8z+fHcX Ch59pX1Q1wB2AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaNsgiaN9kTAAABbz+Q Jn4AAAQDAEcwRQIhAIixYvCVSgvIr9sAnNkdOLqjCtAODZ8+HAbMTvqG75CRAiAD +xN7kk0/3QagNHepb+zOQ/b2rfSLsdJaCxK0TKYdKDANBgkqhkiG9w0BAQsFAAOC AQEAVCDY+/NxPu3O4UHjZakp59h448wSZ4yz88zFQmoIqezyEQNBjVOGWup1lhYv yfpFjiYVNxHiqp6qhtyUowIAksBEMX2b5U/2suytGwDIbikfjxi1RglAtSbMFyqS rXqBU8a//QIDqs8nBN0JOXg6XAC74SYKiopOwQa2OK3gy4IYqGFGwvaVq9FVtMIn 7HmLrlf2QHoEr8FvY19qzdAxcazhBGp/uUvi+Gdx8NWhvtVD4k0LJFPnMJz2MHvZ ZeLt0VMUQgmW8NNsyNan+wUK4EbTA+aI4Rf+SeC+LALT4yVPiVgPIHtBJF7cQ/6l /07TaHO/qyBWAB2GI8T064kTnw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9qOUJDGmZ1n1Q/Lw+WXi kp6MN7bc4UwLS5NK54Uyb+JTFodZw0Dya6OmbeboEMSD/PLDYCaFZSJHvZNHfK2A uQDo9ywu+DagPEgxr92dxJLRlXCDPA/jfUDXJAdvDacmY93Bi6IoZTiidTeUC7kn Wi/5frW9Knax1AjGDDQJZ870443WmNxR8gbjWNT0sJPc/Ds2vpmrAqmU5Jl9Mwv0 aOJI352xhsfLd4omEdLp5FwiJtCLXMUeFiWNm9TQWelSZkILfMbdvSU9iw3+KEg3 ATnEJqgxsnJOXEtNoZ9PB/QAPdefKyUMKnnykdPU/jWWXS1eYZ798IX+1j2mPsjM rQIDAQAB -----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 321445085626584551892693919682849069544628 . . . . . . . . [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 2019-12-25 23:16:49 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 23:16:49 +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 'siekmann-ingenieure.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 31135286673790593391759149162862044966941352888685681131159767693811418821507019312747641619322341484200233758640024677496650257242220015571003441630440489925719065354876695504384576333223016819317837102534872754084466084034424712457410447701352823336450130934661428995117323556875798200893358302934794872257626184182196801503557533323041057800463124470332576550602062957841694677461261972964897156985266623305823284338773653438568720090646439078351009822062599375502340446833266685098158148877933144866621528477192242021381098789901943557462450426486910907857059142664629032651827916102876267625824305228553812233389 . . . . . . . . . . . . . . . . . . . . [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) 70da9fe8e4c11f58c8ab7b5559f1337bc004e64a . . . . . . . . . . . . . . . . [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 (54 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'siekmann-ingenieure.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.siekmann-ingenieure.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f3f902647000004030046304402200168812e7f7443ae544575b41a2085b37fa622440bbbb6878bc460fcfbc32f0e022004131ae3ea364b9260005e9838196b02d039d54fccfe7c77170a1e7da57d50d70076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f3f90267e000004030047304502210088b162f0954a0bc8afdb009cd91d38baa30ad00e0d9f3e1c06cc4efa86ef9091022003fb137b924d3fdd06a03477a96fecce43f6f6adf48bb1d25a0b12b44ca61d28 . . . . [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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