www.klemmsolutions.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:fe:60:cb:b1:1a:a5:d0:09:5a:fa:29:7e:f9:0b:1a:3f:39 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=www.klemmsolutions.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:fe:60:cb:b1:1a:a5:d0:09:5a:fa:29:7e:f9:0b:1a:3f:39
Serial Number (int): 435009528440914739399087176452697359007545
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f0:69:8b:63:c9:8c:cb:84:88:0b:1b:76:d7:4d:ea:d0:c3:52:32:93
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8f:7f:9e:f6:87:d3:bd:36:c7:36:97:6b:5b:c8:f1:ca:e2:29:79:1d
Fingerprint (sha256): cc:67:f5:c2:a1:ef:49:68:9e:cd:62:5c:db:d1:01:ca:4b:6d:7a:c2:17:71:7d:4b:9c:f2:7a:6e:9d:02:66:13

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.klemmsolutions.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.klemmsolutions.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

www.klemmsolutions.de

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAunhHyl6zygSGE49B7F/Z
WeHEqBO7aGT8kZlbEBDyZEEorMW+gDNQJ9ATDJRXAsPJDv50Rb21so3IRm+mYo49
t7gnMNZE6tuB4UbPi9H+7f0z7hTnb6Q/V7rOG8CibWZbVw6862o/klyP+p9o2HGY
b4cM2RQL95D2nzZ74wlboLkg3vfdKZ+yEx2fBOIrUUsCpckW7wnL/7tkOO1VWn58
P1vIvNgPDqmUzr3K8hCcX78yUiIdRXMEAkGabfmbEKz+wmPjvP7UgcsdxjhGZg80
y42CY3ejiGhkgSkrUUznu4+MM18RY9Aafmbs6tJjRtuAFFi0MSLdJ8R9NztUzpUp
9wIDAQAB
-----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 435009528440914739399087176452697359007545
 . . . . . . . . [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 2019-03-02 09:57:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-31 09:57:32 +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 'www.klemmsolutions.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 23539637215150254136316275907887928259640483377034933068502081735224722372211810779022142482061787394346701595254169776088913182685843856219338920063499055117339338647429809386516849958935373160084316043777335797503691062824973292503945588190721864681718811474327368095211922353989585135611042914755210240770305542753531562186905877932387899211717226320075817273830067620428444903324056407323904190172607428511221601288164307449627020820561406987050487776016117156659884606759857334528946974371920581759855858107448900654288239935544132188492302186632263116673709249730839647908348311617761060135010536651551818459639
 . . . . . . . . . . . . . . . . . . . . [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)
							f0698b63c98ccb84880b1b76d74dead0c3523293
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.klemmsolutions.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001693e0d4a40000004030046304402205f65a629df243fd21f7b263e01aa5e441598099091362f21fea3fd395f60364402207663e1191d956bf48bcee1d7bf4c6b16c38223077510f23c87833c45f6e28a02007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001693e0d4c0500000403004830460221009b9e383fdf6cfd209121ea6f7e8fbf8ff2b8381aed91eae074aaef069aa9e2f4022100cb550cd5cc82bf8060772ca63942ddd1f8fa5e710799d7f6b2657a78ec57d96d
 . . . . [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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