SSL Certificate: app.theorie.nl
🟢 Valid Certificate
| Common Name | app.theorie.nl |
|---|---|
| Issuer | Sectigo Limited |
| Issuer CN | Sectigo Public Server Authentication CA DV R36 |
| Valid From | Oct 2 00:00:00 2025 GMT |
| Valid Until | Oct 30 23:59:59 2026 GMT (113 days left) |
| Serial Number | CF6D6C804EA3A98FCF52A7FDD0FFE593 |
🌐 Subject Alternative Names (1)
ℹ️ About SSL Certificates
SSL (Secure Sockets Layer) certificates encrypt data between your browser and app.theorie.nl's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Theorie website.
Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.
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