Certum
Polish certificate authority issuing SSL/TLS and code-signing certificates, S/MIME and qualified electronic signatures.
Visit Certum ↗- CategorySecurity & privacy
- Based inPoland (PL)
- Data residencyEU / EEA
- Open sourceNo
- Last verified14 Jun 2026 · catalog refreshed weekly
- Alternative toDigiCert, Sectigo
- Listed bygricker.eu (curated)
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