cbdata.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:cd:5e:d0:2e:0d:b7:f7:54:03:de:c2:5c:26:6f:ae:f5:1e 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=cbdata.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:cd:5e:d0:2e:0d:b7:f7:54:03:de:c2:5c:26:6f:ae:f5:1e
Serial Number (int): 331220771377501224924950388375899098510622
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 61:39:d2:ac:27:b5:87:9c:61:a4:d5:cf:1f:2c:67:14:a5:2d:da:4d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 93:8c:7e:8c:6c:9e:c1:0c:e1:66:0b:54:46:47:06:1c:f9:46:b7:9c
Fingerprint (sha256): 64:8e:dd:6a:23:98:49:ba:a0:c6:bd:f3:16:b6:24:d4:97:bb:4b:92:8e:ae:cc:f7:ec:84:85:39:f9:af:04:b0

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

Revocation information

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

Check the revocation status for certificate cbdata.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cbdata.cz

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

cbdata.cz
www.cbdata.cz

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Certificate

The complete raw certificate details for cbdata.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6GuFDX9WqSepbsyxT7Z8
g2gBK5Rzaqc7wW8AjswSIPHiVKDjUdxg3KOzjamAMazqjxDKO9BnUVtNx/FLHiKW
YMn58bt0XnGIr6P1EEA1KD6Og/pC04YZd2hOfshoKEoqbtrKbRvJdCdK3EwIs/Ar
9spcKd/vxSgKzl0e+hFjkCdQ29FPR74xWsnPnVBLPds7H8eHEA5SID3TPRthl5Zo
t7pa74IO+cz3FCfkZNaT0Wm7t2DGp9TH5YJ06YiPpthf+5Wua7dXdncG1M6/N7XA
jvjeU1AUno2NdhuNwuk6ZiqAblMf1kShx3+zK6wCuTu86MOveVDuQVN5KOEUZmpv
3QIDAQAB
-----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 331220771377501224924950388375899098510622
 . . . . . . . . [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 2023-09-02 17:37:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-01 17:37:03 +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 'cbdata.cz'
 . . . . . . . . [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 29340306710621918461115399754425980525076855646908082804296320707275283938245774434559767151292518391923889665799212198918129989407359361678033953050355581787521021785768549286229421844749316894412417621585067197916614446498879886464288100665259219734932467543352870079523782524373177284813601409708202881517369561619923198000152342844676599337566204364421175896581663362107461012975216356736237838129990101349102350405137359743259654944335910894674553891222384766018098782262147345070198634165221766170113078069230453539647721956515096689926985777308930562454472119189501352204074854720872877150973255700199103950813
 . . . . . . . . . . . . . . . . . . . . [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)
							6139d2ac27b5879c61a4d5cf1f2c6714a52dda4d
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cbdata.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cbdata.cz'
 . . . . . . . . . . . . . . . . [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)
							00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a572f2db10000040300483046022100d01d912a371b59a6aa1cd55398f9e69fee39e9bf784a43b41c4d08097ca5da51022100cd6a18b00e684e9ff1fdedcaf31baa427a727d0dbc8c5d37171444ab58b3d4c1007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a572f2e1c0000040300473045022100abeaed1f8134cb6af8a7cdd2ceb67aa011affe1e055b27c6ec06b281b5643174022051377f0c708df26234ba9a1593eae0c0c941938d2266f4d49794711c2a333907
 . . . . [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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