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SSL Certificate: kalender.digital

🟢 Valid Certificate
Common Namecalendar.online
IssuerLet's Encrypt
Issuer CNR12
Valid FromMay 6 20:52:18 2026 GMT
Valid UntilAug 4 20:52:17 2026 GMT (59 days left)
Serial Number052C95C2A2F618953B492C103A218A74C150
ℹ️ About SSL Certificates

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

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