SSL Certificate: polygon.io

đŸŸĸ Valid Certificate
Common Namepolygon.io
IssuerLet's Encrypt
Issuer CNR13
Valid FromFeb 27 15:14:10 2026 GMT
Valid UntilMay 28 15:14:09 2026 GMT (52 days left)
Serial Number0602EC2867F224C6E10E60000D6AB8F01CF5
🌐 Subject Alternative Names (2)
â„šī¸ About SSL Certificates

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

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