techbook.de

Issued by R3

About this certificate

This digital certificate with serial number 04:5e:de:71:56:bf:47:6c:a5:6f:0b:d9:1a:94:33:10:25:16 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=techbook.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:5e:de:71:56:bf:47:6c:a5:6f:0b:d9:1a:94:33:10:25:16
Serial Number (int): 380731363321660377646552371050346529694998
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 9a:75:0e:09:e3:cb:48:14:39:65:99:af:8f:24:3c:e1:2d:a8:ef:78
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e5:23:1c:53:d7:79:36:be:b4:e2:de:0b:ed:ec:b2:b3:fb:63:e9:72
Fingerprint (sha256): 19:22:4e:ed:11:6d:e8:75:71:be:1c:41:a6:98:77:d8:e8:17:88:35:96:a2:f1:0d:d8:b3:cc:7b:85:62:f1:b6

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate techbook.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 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

techbook.de

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stage.techbook.de
techbook.de
techbook.de
static.techbook.de
techbook.de
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techbook.de
cmp.autobild.de
static.techbook.de
static.techbook.de
image.techbook.de
static.techbook.de
static.techbook.de
static.techbook.de
*.myhomebook.de
techbook.de
pur.techbook.de
stage.techbook.de
image.techbook.de
static.techbook.de
static.techbook.de
techbook.de
stage.techbook.de
techbook.de
link.mailer.techbook.de
techbook.de
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static.techbook.de
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data-50c00d5d12.techbook.de
image.techbook.de
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techbook.de
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link.mailer.techbook.de
static.techbook.de
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link.mailer.techbook.de
static.techbook.de
link.mailer.techbook.de
data-7a534833b2.techbook.de
static.techbook.de
*.travelbook.de
kmp.techbook.de
ast.myhomebook.de
*.myhomebook.de
kmp.techbook.de
image.techbook.de
data-7a534833b2.techbook.de
static.techbook.de
businessinsider-fr.businessinsider.fr
techbook.de
static.techbook.de
techbook.de
link.mailer.techbook.de

Certificate

The complete raw certificate details for techbook.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFHTCCBAWgAwIBAgISBF7ecVa/R2ylbwvZGpQzECUWMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMTEyMDcxMTI1MDNaFw0yMjAzMDcxMTI1MDJaMBYxFDASBgNVBAMT
C3RlY2hib29rLmRlMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvelA
CppN+nOmeUCPhBo86gLaTkOBPljcOlDZnMmn7q9/u8bhoxdMAjwnfGsL+pYvP4Sc
fuuenOpreLXdVpu03NUfX/6fja+eT7NsgMBZXsz4gntYnyKUDyHuUQASSFoGuSck
OIwarvPt3WGPY7kcAsBv1cyePt8lSBIzwqp+HDvk+PYOLtDqCkC50J3CKXy25Kx8
YZGqAwET58plaqZLqI5CoeA+xAYfLhYR5zBqVA92qRxjgqDoePeyPXHWdQbfxWHF
xIqgSp9mR3N/aKvSNlS/b6wHFs96u3jttRnnxzVw15iupX+mo2YTr9ARalgPjfel
GwEll4fuvff1X9MXKwIDAQABo4ICRzCCAkMwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud
JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW
BBSadQ4J48tIFDllma+PJDzhLajveDAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDm
H6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5v
LmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzAW
BgNVHREEDzANggt0ZWNoYm9vay5kZTBMBgNVHSAERTBDMAgGBmeBDAECATA3Bgsr
BgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0
Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2AN+lXqtogk8fbK3uuF9OPlrq
zaISpGpejjsSwCBEXCpzAAABfZTav1EAAAQDAEcwRQIhAMDrC3hbwIGLP6m90Iet
xmnYFPfD1PAVALVU9YDo9MdDAiBsEqEyaLK9qqamM2RtRzS3Cq5BUmSHqwSTGY99
9VxkIwB3ACl5vvCeOTkh8FZzn2Old+W+V32cYAr4+U1dJlwlXceEAAABfZTav00A
AAQDAEgwRgIhAOqD1OLuRmfdNLZOrJluq3RYSZvEqJ0NXuZskugqcx+8AiEAq0pF
LR+O4ilaO73BcVhOB9CTmqgPNoy9Cjbpr4LewEYwDQYJKoZIhvcNAQELBQADggEB
AHvZblNt4GkOxRYJCXPFqRoT8vp6yIXHIZrxK7HOuZ5LXFXOLlZ5y6ZiZoKUTbwk
RWQNd4qQ30dg89TeotVgYKPKPBq1e9tL9AcTeqi93iVCIzrMpgjrtVheCHzIg45b
Mi2pTSqOT2Gp249NRIFwBbwDQurIv0wii06CTx0RPx4eWhhmCanlkwnn3vh1pr33
k/RsWXj9A6ULJQtpaJWqE1C0HWfwIu3So5GdKqfz9NTXKouvijT5Z1Xu1dyGgxSF
d0KxpXU9qhSkcH+YDl3oCQ2QlU60DVHgUguBa7NCovcc9iYxp4rC6goKEwWASM+k
cU/QNAVtIXJCSeYtWrQGKjE=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvelACppN+nOmeUCPhBo8
6gLaTkOBPljcOlDZnMmn7q9/u8bhoxdMAjwnfGsL+pYvP4ScfuuenOpreLXdVpu0
3NUfX/6fja+eT7NsgMBZXsz4gntYnyKUDyHuUQASSFoGuSckOIwarvPt3WGPY7kc
AsBv1cyePt8lSBIzwqp+HDvk+PYOLtDqCkC50J3CKXy25Kx8YZGqAwET58plaqZL
qI5CoeA+xAYfLhYR5zBqVA92qRxjgqDoePeyPXHWdQbfxWHFxIqgSp9mR3N/aKvS
NlS/b6wHFs96u3jttRnnxzVw15iupX+mo2YTr9ARalgPjfelGwEll4fuvff1X9MX
KwIDAQAB
-----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 380731363321660377646552371050346529694998
 . . . . . . . . [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 2021-12-07 11:25:03 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-03-07 11:25:02 +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 '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 23974059580213273947921502602660094532775807182603088110383610587744166778824763831305340440400326505889454868474876178222080079873347078668905715905667280271537108822460253592768990657593587507024067797192984624877996210260461439198558355050131459135784677130032251426987449068383094015040060639885304466738623691256030516003056368645166651268092826059678814726444550063639293205655391120565141521901295935830401601764004167012724874123180433788917907984160291394728484617359382162920809507043817635916135445591462913743489748005853148804107285412135324244474245465039215684509229246613791097490826095690484347508523
 . . . . . . . . . . . . . . . . . . . . [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)
							9a750e09e3cb4814396599af8f243ce12da8ef78
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (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)
							00f1007600dfa55eab68824f1f6cadeeb85f4e3e5aeacda212a46a5e8e3b12c020445c2a730000017d94dabf510000040300473045022100c0eb0b785bc0818b3fa9bdd087adc669d814f7c3d4f01500b554f580e8f4c74302206c12a13268b2bdaaa6a633646d4734b70aae41526487ab0493198f7df55c64230077002979bef09e393921f056739f63a577e5be577d9c600af8f94d5d265c255dc7840000017d94dabf4d0000040300483046022100ea83d4e2ee4667dd34b64eac996eab7458499bc4a89d0d5ee66c92e82a731fbc022100ab4a452d1f8ee2295a3bbdc171584e07d0939aa80f368cbd0a36e9af82dec046
 . . . . [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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