SSL Certificate: duf.de

đŸŸĸ Valid Certificate
Common Nameduf.de
IssuerLet's Encrypt
Issuer CNR13
Valid FromFeb 16 01:14:43 2026 GMT
Valid UntilMay 17 01:14:42 2026 GMT (44 days left)
Serial Number05690F444F5E3D480959A869E115740ED24D
🌐 Subject Alternative Names (2)
â„šī¸ About SSL Certificates

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

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