SSL Certificate: simonsfoundation.org

đŸŸĸ Valid Certificate
Common Namesimonsfoundation.org
IssuerLet's Encrypt
Issuer CNR12
Valid FromMar 31 14:36:09 2026 GMT
Valid UntilJun 29 14:36:08 2026 GMT (86 days left)
Serial Number05B6E52DA37F725CAA3C278873BDA52C98BC
🌐 Subject Alternative Names (2)
â„šī¸ About SSL Certificates

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

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