Issued by PostSignum Public CA 2

About this certificate

This digital certificate with serial number 08:88:61 was issued on by Česká pošta, s.p. [IČ 47114983] .

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Cerificate errors/warnings *beta

  • ERROR: Certificate doesn't contain any subjectAltName
  • ERROR: Certificate CN is not listed in subjectAltName


Company registration number: S195487
Organization unit: S195487
Country: CZ

Česká pošta, s.p. [IČ 47114983]

Organization: Česká pošta, s.p. [IČ 47114983]
Country: CZ

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 08:88:61
Serial Number (int): 559201
Serial Number lenght: 20 bits, 3 octets

SubjectKeyId: 1e:5f:3e:eb:9c:2d:6a:d8:45:7a:bd:6f:3b:3e:8e:cf:0d:8c:78:ee
AuthorityKeyId: 48:ef:3e:d4:ea:89:89:a3:e9:e2:3f:db:ef:8c:42:b1:0a:f8:c8:d1

Fingerprint (sha1): 2f:28:7f:08:4f:70:f9:03:67:9e:a4:f8:45:d7:6c:d2:19:2a:e1:da
Fingerprint (sha256): 2f:17:5d:0a:0f:55:3b:b9:05:fa:79:20:a0:55:97:4b:50:fe:11:9c:1d:1f:ad:18:0e:18:a6:f7:19:69:77:8d

Issuing Certificate URL: http://www.postsignum.cz/crt/pspublicca2.crt
Issuing Certificate URL: http://www2.postsignum.cz/crt/pspublicca2.crt
Issuing Certificate URL: http://postsignum.ttc.cz/crt/pspublicca2.crt

Revocation information

CRL Distribution Point: http://www.postsignum.cz/crl/pspublicca2.crl
CRL Distribution Point: http://www2.postsignum.cz/crl/pspublicca2.crl
CRL Distribution Point: http://postsignum.ttc.cz/crl/pspublicca2.crl

Check the revocation status for the current certificate on portal.eschranka.eu
DNS Names
Email Addresses
IP Addresses

Advanced Certificate Properties

Technical details about this certificate

Public Key Algorithm


Key Size


Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Content Commitment
Key Encipherment

Extended Key Usages


8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names