ck-werbetechnik.com

Issued by R3

About this certificate

This digital certificate with serial number 04:bc:b8:89:68:0a:3c:f6:ac:09:a4:a7:3f:c0:50:96:41:44 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:
  • 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=ck-werbetechnik.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:bc:b8:89:68:0a:3c:f6:ac:09:a4:a7:3f:c0:50:96:41:44
Serial Number (int): 412667520114253209223291627025822708547908
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 67:d4:2e:63:f8:24:6d:36:ef:11:d6:04:8c:a5:0f:ed:b4:91:72:db
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 32:0f:1d:6e:6b:01:14:ec:e3:fa:aa:8f:7e:20:67:96:79:c4:40:87
Fingerprint (sha256): 8c:2a:e2:2d:ba:cd:1b:95:a3:45:77:03:12:c2:f5:51:b3:a6:4e:b5:95:ef:aa:34:b8:a7:d2:7c:fd:8b:ad:9b

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

Revocation information

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

Check the revocation status for certificate ck-werbetechnik.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ck-werbetechnik.com

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

ck-werbetechnik.com
www.ck-werbetechnik.com

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Certificate

The complete raw certificate details for ck-werbetechnik.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8Hip/O1xW/1ljEvNzA8W
NMP9vxUv2MhQ7HpNocDYM/fnlHnsE6hNnDXe97C6luyolIrf+OAdV2IZoPtDI+Vt
oMy0uPLeGx7yUd3ff5CkwFFqS2s/tgPz+tcwmjm0UpdrZFfnUw/a6WQbRUEqTh3j
vfJ8wLFl41mTmqU7piPBlpRHVktmCCqwfPdUm9h4k6jGeNQGP87sbGE5mzKSjBMC
bmaxl54T5YAjlI9PZEn6Zs+G9m7bxDAGxMHwz/Jj5QhzwqaNXjyWiJ9E51aXkoIt
sEiqgCS8ShDzOPJp03qznWvmUVIdBbdYFyD6iPLBm6JfMt6/ndXYn+F+pfn7fer4
1wIDAQAB
-----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 412667520114253209223291627025822708547908
 . . . . . . . . [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 2023-12-10 18:12:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-09 18:12:54 +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 'ck-werbetechnik.com'
 . . . . . . . . [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 30356694835611710100927389653616166843686585815534302997930022110629410743333130295788934759157516486031008751152689133678697101845746599313494341989685775404303754239615807619024236937009146965382790191214640438638038392279449186208690913759318889201359653498411639388894584123081363222418496939084406176348563407017932337897735975001528274332555433975557456083021941849887331173105171234211502866878118988688287061344805234826824800893663112621270001325554325388728636613070616472477127531629044396451560206935650885577460573791956747011183601528070474927832764983108450593940265229939878445912876545195736728008919
 . . . . . . . . . . . . . . . . . . . . [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)
							67d42e63f8246d36ef11d6048ca50fedb49172db
 . . . . . . . . . . . . . . . . [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 (48 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ck-werbetechnik.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ck-werbetechnik.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c5525977f000004030047304502201a98e3678f3ddc0f9cb75c470d4ee40db6e5470535e2a0b4b62547de73817e51022100ec68cf7ecc15a37235444cb29879e597104af8956f0b97477c97f8ffd1698fce007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018c552597900000040300483046022100ef12f3e32e116896e075febe21512624cac7de91b0b427a88eef1250022bba0002210080125b20f1e9d1df3d5fe1cc6b07f0e61a0afa064ddea4f7565bb08e710274b3
 . . . . [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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