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SSL Certificate: ksef.podatki.gov.pl

🟢 Valid Certificate
Common Name*.ksef.podatki.gov.pl
OrganizationMinisterstwo Finansów
IssuerAsseco Data Systems S.A.
Issuer CNCertum OV TLS G2 R39 CA
Valid FromNov 25 08:05:07 2025 GMT
Valid UntilNov 25 08:05:06 2026 GMT (134 days left)
Serial Number0FFEB92ED9FB70D6B93526DF30C6C31B
🌐 Subject Alternative Names (2)
*.ksef.podatki.gov.plksef.podatki.gov.pl
ℹ️ About SSL Certificates

SSL (Secure Sockets Layer) certificates encrypt data between your browser and ksef.podatki.gov.pl's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Ksef website.

Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.