ck-werbetechnik.com

Issued by R3

About this certificate

This digital certificate with serial number 04:e2:2c:9a:d1:03:38:94:dd:87:3c:20:43:50:42:07:3c: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:
  • 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:e2:2c:9a:d1:03:38:94:dd:87:3c:20:43:50:42:07:3c:b4
Serial Number (int): 425412248535982632769531666104515790585012
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 6f:cc:43:b2:4c:f8:c4:a5:ff:c9:36:5d:42:df:cb:f2:3c:87:8d:02
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 5c:9d:a1:8f:57:56:1a:31:0a:e3:84:25:a1:b1:47:e7:09:7d:f3:12
Fingerprint (sha256): 18:b4:08:37:d0:42:80:a0:54:4c:0a:5f:bc:2c:7e:f6:26:c6:1e:38:4e:e0:05:aa:d8:6b:20:61:a6:5f:76:d2

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsT5v6eOm2TKRX+3ETT9p
gnoZI8ssU7B/Cjbe9R9aOnoXW3OqdKoBmuLM9g7Sih1GuUyDA35RGy1ehGleMdI4
aIb1NmbKSuqjYgXwtyxxuSc/8SHIfolg8ADjKkbGM4DZXuXV7ancxLOXKE7e0wYE
rT62ON9HzBCmDR42289bnoex6xg/ManVBlnWQTcfdIzi12fvazkpkD1O0ohEusus
E37pz9wCOsBCyRQbZvIcdaITO4C3Za6gzgt1qyxMe6gXv83/UDDdoc/TwRN2F2d4
EcimdLQYlyG+bmZyG5YSO59+s2FabI76KPm5C7jDpKHya+SqaaIx+VikTs7W048S
WQIDAQAB
-----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 425412248535982632769531666104515790585012
 . . . . . . . . [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 2024-02-17 04:35:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-17 04:35:49 +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 '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 22374968891397275955071709813573767631569800397712466797008076046585021836363548750267643264305484632371919915518342750668686397772473412064665655791208904073847576275442551946245502044931815431233663704552857182278615847550136288036714643291782283263870094586775689038134801970460510210306312515620693584037365656648395679180945291287459226336610130030209011295305462797815229537222576354289973504730523125497099319588531216365930730151090560544017771758085851681402497901070623929424907406000964657157259151845725843301451754592657005792543276776199903520503439691359699173365937340251886150229341156061917444248153
 . . . . . . . . . . . . . . . . . . . . [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)
							6fcc43b24cf8c4a5ffc9365d42dfcbf23c878d02
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018db590505a000004030047304502204d0c8c6c89acdbe5aa7e8822046ba21c0d53d0f493c2642924bb3c46067e7cab022100af671fa4346a838bf7330c6f0ab4c10371d8b881cb1c5c905589d0a77fa2491100750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018db590504200000403004630440220758ccdc9d35a473ca3452b8e05391524120b45931104bd09f5b8880a3d8df6f3022046d3ec582cca85c820b42b82fbc0a82ddbf306e23d44e9006301e8f9460a19e4
 . . . . [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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