SSL Certificate: polytechnique.edu
🟢 Valid Certificate
| Common Name | www.polytechnique.fr |
|---|---|
| Organization | ÉCOLE POLYTECHNIQUE |
| Issuer | Hellenic Academic and Research Institutions CA |
| Issuer CN | GEANT TLS ECC 1 |
| Valid From | Oct 21 08:35:40 2025 GMT |
| Valid Until | Oct 21 08:35:40 2026 GMT (200 days left) |
| Serial Number | 2FD20DCEA33041E7EF99F7DBEB728F53 |
🌐 Subject Alternative Names (5)
ℹ️ About SSL Certificates
SSL (Secure Sockets Layer) certificates encrypt data between your browser and polytechnique.edu's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Polytechnique website.
Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.
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