data-50c00d5d12.techbook.de
Issued by R3
About this certificate
This digital certificate with serial number 03:45:b0:44:70:0b:d7:59:f6:9e:48:20:c7:d8:34:b3:b0:bc 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:
- 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=data-50c00d5d12.techbook.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:45:b0:44:70:0b:d7:59:f6:9e:48:20:c7:d8:34:b3:b0:bcSerial Number (int): 285050640588838052913529824347423453196476
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: a1:eb:c7:5e:68:ad:cb:70:07:4e:ae:1e:cd:8c:19:a8:7b:fc:8d:79
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): dd:5e:e3:95:ad:a9:53:2b:df:c4:c4:4d:7e:20:63:43:18:2f:a4:4a
Fingerprint (sha256): 05:59:ad:e7:bc:e6:73:dd:d2:67:4d:d4:02:cf:40:32:10:87:06:9f:d2:54:b9:63:31:c8:4f:80:4b:a7:56:35
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate data-50c00d5d12.techbook.de
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for data-50c00d5d12.techbook.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
data-50c00d5d12.techbook.de
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techbook.de
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data-50c00d5d12.techbook.de
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techbook.de
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Certificate
The complete raw certificate details for data-50c00d5d12.techbook.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIEEDCCAvigAwIBAgISA0WwRHAL11n2nkggx9g0s7C8MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAyMTIwMjQxMzdaFw0yNDA1MTIwMjQxMzZaMCYxJDAiBgNVBAMT G2RhdGEtNTBjMDBkNWQxMi50ZWNoYm9vay5kZTCCASIwDQYJKoZIhvcNAQEBBQAD ggEPADCCAQoCggEBAKs1v0gemR/IWJQmHk9OJIvgx2mnCu7BF1MK9HfsAv3Kcvua WjyarUJ4V0/y6RN20XP6EW+K3iSEP9dSmxfrB+ZDe5jsRqI9hpYMeCJRypcfC54z a33igiSUkSDCNYLdJTRmNC4skQESLHD/8Y5QV5N1bSlTSgJnruvZEDKDSce3qn7A an+6fa3k3HzpJIAl69SDoVcYdq3gVRcdXXIpG/NNlkE0TDt1lwVMPFecbW57QY5r wZ/ujj0ZvQ/vrUeu+UVhAX/ZK80ilbuNdJK1iKxAIEI7/N6KMxIiZQceQ2RVSrKE ChGvSVj8qGMSdCn+zjd5Am5oi7CHC2l530jU+zkCAwEAAaOCASowggEmMA4GA1Ud DwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0T AQH/BAIwADAdBgNVHQ4EFgQUoevHXmity3AHTq4ezYwZqHv8jXkwHwYDVR0jBBgw FoAUFC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUF BzABhhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9y My5pLmxlbmNyLm9yZy8wJgYDVR0RBB8wHYIbZGF0YS01MGMwMGQ1ZDEyLnRlY2hi b29rLmRlMBMGA1UdIAQMMAowCAYGZ4EMAQIBMBMGCisGAQQB1nkCBAMBAf8EAgUA MA0GCSqGSIb3DQEBCwUAA4IBAQCzO54itVZ37HqOsCHJnJhVENtAwl7EhJBu3d8d 7rZiQbdq3nS+tGs0oNNxi7a8VlPST5ugjtEhk/y1mKcKAN+9X3OWaftXeyfsWtki tp1WG1Tke9AmE4PqWDb0NT/cNm2gQR1O1DluFKfq1WYjDwsO3PgBq1KFQ3YTn/hA 3RGMuj62bJTjG+70dZu2h97k1nh8zWP5k8qxTo5EdYcOz7g9O7YtiNhszyoCmO1j JVsQRHyiVuZXfG3L/MJTbKeQ5XlKM7xXPUxLk5Drg3J7ulgh/DnYh68EXHzw9pfQ 8x7RuOn24MBUorWLrnAAD4RGRPxw+vHTzdZvDjT7Z9F9683Z -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqzW/SB6ZH8hYlCYeT04k i+DHaacK7sEXUwr0d+wC/cpy+5paPJqtQnhXT/LpE3bRc/oRb4reJIQ/11KbF+sH 5kN7mOxGoj2Glgx4IlHKlx8LnjNrfeKCJJSRIMI1gt0lNGY0LiyRARIscP/xjlBX k3VtKVNKAmeu69kQMoNJx7eqfsBqf7p9reTcfOkkgCXr1IOhVxh2reBVFx1dcikb 802WQTRMO3WXBUw8V5xtbntBjmvBn+6OPRm9D++tR675RWEBf9krzSKVu410krWI rEAgQjv83oozEiJlBx5DZFVKsoQKEa9JWPyoYxJ0Kf7ON3kCbmiLsIcLaXnfSNT7 OQIDAQAB -----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 285050640588838052913529824347423453196476 . . . . . . . . [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 2024-02-12 02:41:37 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-12 02:41:36 +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 'data-50c00d5d12.techbook.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 21613253878466818292570929193334960801584652539993122836271175005132830735514782491528572599985903820103509726376898563742270099946323066500044334940514910710436928775297454696792138604727215784631063393134615418039849583548181048105197194908078182480304446760178940364103386213452268717952236283675397810812367291426336172314709252626522760899193003144498753216796903323067336703683816941687432278662537316043982677848846642884652680864135047819517871054982890156891818322860681009139141335019336950540307157328440746575221320056722607917635102016496459952937569153957460239407169616061140755443285477725036495567673 . . . . . . . . . . . . . . . . . . . . [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) a1ebc75e68adcb70074eae1ecd8c19a87bfc8d79 . . . . . . . . . . . . . . . . [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 (31 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'data-50c00d5d12.techbook.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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . [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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