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SSL Certificate: poczta.domena.pl

🟢 Valid Certificate
Common Namepoczta.domena.pl
IssuerLet's Encrypt
Issuer CNE7
Valid FromMay 11 23:43:43 2026 GMT
Valid UntilAug 9 23:43:42 2026 GMT (30 days left)
Serial Number0682CF375CFB3032A7AC2DBB8796302D775C
🌐 Subject Alternative Names (1)
ℹ️ About SSL Certificates

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

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