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SSL Certificate: 1sept.de

🟢 Valid Certificate
Common Name1sept.de
IssuerSectigo Limited
Issuer CNSectigo Public Server Authentication CA DV R36
Valid FromNov 26 00:00:00 2025 GMT
Valid UntilDec 17 23:59:59 2026 GMT (155 days left)
Serial Number7F17D26096214080A828621E37583810
🌐 Subject Alternative Names (2)
ℹ️ About SSL Certificates

SSL (Secure Sockets Layer) certificates encrypt data between your browser and 1sept.de's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real 1sept website.

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