SSL Certificate: museen.koeln
🟢 Valid Certificate
| Common Name | museen.koeln |
|---|---|
| Issuer | Let's Encrypt |
| Issuer CN | R12 |
| Valid From | Apr 13 07:36:59 2026 GMT |
| Valid Until | Jul 12 07:36:58 2026 GMT (40 days left) |
| Serial Number | 05A4F0F1377F3C59119BAC832C1232B596C9 |
🌐 Subject Alternative Names (1)
ℹ️ About SSL Certificates
SSL (Secure Sockets Layer) certificates encrypt data between your browser and museen.koeln's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Museen website.
Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.
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