klopotek.com

Issued by R3

About this certificate

This digital certificate with serial number 03:ff:1c:5d:f0:09:9d:aa:f5:de:fc:04:ab:c4:95:a3:4e:c7 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=klopotek.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ff:1c:5d:f0:09:9d:aa:f5:de:fc:04:ab:c4:95:a3:4e:c7
Serial Number (int): 348146567496150023670496675100861917253319
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 38:19:3b:ee:ab:08:a4:d6:0c:2a:b0:9e:94:fe:c7:db:11:58:91:9d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 59:02:e5:9f:ec:92:5b:24:aa:be:fa:1c:88:ea:55:da:81:85:b4:1f
Fingerprint (sha256): fd:27:ce:95:0c:9d:11:d0:30:cd:67:bf:e6:ab:52:f8:6a:a6:d3:7d:74:01:88:d1:d0:c4:82:03:5f:38:de:2f

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

Revocation information

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

Check the revocation status for certificate klopotek.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for klopotek.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

klopotek.com
www.klopotek.com

Other certificates including the domain name klopotek.com

(limited to 100 certificates)
klopotek.com
webmail.klopotek.de
klopotek.com
*.klopotek.com
klopotek.com
www.klopotek.com
klopotek.com
klopotek.com
klopotek.com
webmail.klopotek.de
klopotek.com
klopotek.com
asp-citrix.klopotek.com
www.klopotek.com
klopotek.com
*.klopotek.com
saas.klopotek.de
klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
www.klopotek.com
sip.klopotek.com
saas.klopotek.de
*.klopotek.com
klopotek.com
autodiscover.klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
mail.klopotek.com
klopotek.com
*.stream.klopotek.com
klopotek.com
klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
*.klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
www.klopotek.com

Certificate

The complete raw certificate details for klopotek.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3NRk4P3T5TPawTM01qGc
l75Tl+A4+SLWB3RdhIHZOQU548t1RGPsfis7SfQ/Bcz74YJC41IfDNOyQZNpC0XV
aPpzAM/HT9KHXEt0IyIEy40iDdA60suZZ2A6Jvh2qIExFNdZZKnQ5kuRScTVMe+M
pUNevw42715/OQQAz/OsGOOqPmedwjdyZH9vaiUM9SdXTjM8yxjbf7n5gP7p1KLh
TB5MCGN4t1HtOf80cB8G6Al1K0+F4G51LIAOhvA7bwaOkScFoZim8RXnmHqKB7lu
M61dU4rfnaCu/fTpQ7SmlulWIfa10aCQmYnXCRhOZBnzpgjQilGhttIH1QtB4wy2
cwIDAQAB
-----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 348146567496150023670496675100861917253319
 . . . . . . . . [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 2023-01-27 03:42:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-27 03:42:10 +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 'klopotek.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 27877162506123372597692729695764708383532291966322608869777834702586298657538036205011212105432308556545042238185847908467059151268227679174770311107919525243101382192523675818295810595927327178789697523934271704552895607449175326670113595538251530435235402470819382430856260974878161201319923010523398101660109425346690423946706832181331944361442550243202312768165875128674169015917465677219206659186912171251708272353929967028232059815313247309136256830474652124051074671601213080302312438288861554384841913337492426812599006837197058471330566664054238132388798099692043879118718892608814202036317572498926624093811
 . . . . . . . . . . . . . . . . . . . . [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)
							38193beeab08a4d60c2ab09e94fec7db1158919d
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'klopotek.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.klopotek.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 (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)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000185f18879d00000040300473045022077fc35ee9026c4bbc1e05a661add8d18357d120a4280b15c8e2755024497186b022100ad6f79b7e913df4c48e3b7b544d2ca760b44be11a4c12b01e3ab1cc4b53275470076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000185f1887a02000004030047304502200a1234af4d48c2ad502eb717846d7e7bda4e3d75eb715c040dd7a9d562146ca1022100a143f9af0cb7ab0370c3bd971edd586b9ae3ee107ab9b69e740273b9f736417e
 . . . . [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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