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CA Owner · Czech Republic

PostSignum

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Identity
CountryCCADBA text value provided by the CA Owner representing the physical address of their organization.
🇨🇿 Czech Republic
Documentation
Policy DocsCCADBNotes about the documentation, such as which language the documents are in, or additional documents that need to be listed, as configured by the CA Owner.
The policies are listed in the public web repository in both Czech and English language and are regularly updated. The repository also has an archive of previous versions.
Doc RepositoryCCADBThe URL to the document repository pertaining to this certificate, as configured by the CA Owner.
Problem ReportingCCADBCCADB-published contact mechanisms for certificate problem reports and CA incident reports.
CCADB-published contact mechanisms for certificate problem reports and CA incident reports.
PostSignum
Email to manager[dot]postsignum[at]cpost[dot]cz
Mozilla CA Program — Known Bugzilla Cases (6)
Filter cases
#2021239 RESOLVED Incident 18 comments Opened 2026-03-05 · Closed 2026-04-17
PostSignum: Length Subject organizationName
AI Summary
#2016722 RESOLVED Certificate Misissuance 16 comments Opened 2026-02-13 · Closed 2026-03-17
PostSignum: Mis-issued certificate
AI Summary
#1897730 ASSIGNED Self Assessment 1 comment Opened 2024-05-20 Still Open
PostSignum CCADB Self-Assessment 2024
AI Summary
#1602415 ASSIGNED Root Inclusion 41 comments Opened 2019-12-09 Still Open
Add PostSignum Root QCA 4 and PostSignum Root QCA ECC R1
AI Summary
#1322287 RESOLVED Audit Related 2 comments Opened 2016-12-06 · Closed 2022-12-08
Audit infor for PostSignum
AI Summary
#643398 RESOLVED Root Inclusion Incident 11 comments Opened 2011-03-21 · Closed 2022-11-14
Add PostSignum root certificate
AI Summary
Certificates (7)
Filter by type
Certificate Type Trust Source agreement Capabilities Valid Until Actions
PostSignum Root QCA 2
Expired
 Root
AppleChromeMicrosoftMozilla
 — 2025-01-19
PostSignum Root QCA 4
Root
AppleChromeMicrosoftMozilla
 ✓
TLS
 2038-07-26
PostSignum Public CA 4
Intermediate
AppleChromeMicrosoftMozilla
 i
TLS
 2033-09-27
PostSignum Qualified CA 4
Intermediate
AppleChromeMicrosoftMozilla
 i
TLS
 2033-09-27
PostSignum Root QCA ECC R1
Root
AppleChromeMicrosoftMozilla
 — 2038-06-29
PostSignum Public ECC R1 CA1
Intermediate
AppleChromeMicrosoftMozilla
 — 2034-01-30
PostSignum Qualified ECC R1 CA1
Intermediate
AppleChromeMicrosoftMozilla
 — 2034-01-30

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