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SSL Certificate: macmillandlaucznia.pl

🟢 Valid Certificate
Common Namemacmillandlaucznia.pl
IssuerLet's Encrypt
Issuer CNR13
Valid FromMay 26 16:17:36 2026 GMT
Valid UntilAug 24 16:17:35 2026 GMT (44 days left)
Serial Number050634C273892BD5534042E14B3B6615F5BD
🌐 Subject Alternative Names (2)
ℹ️ About SSL Certificates

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

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