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SSL Certificate: cas.de

🟢 Valid Certificate
Common Namewww.cas.de
IssuerLet's Encrypt
Issuer CNR13
Valid FromMay 1 19:32:15 2026 GMT
Valid UntilJul 30 19:32:14 2026 GMT (64 days left)
Serial Number06D5B50E04668223FA41942186C1894E0E39
ℹ️ About SSL Certificates

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

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