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SSL Certificate: extension.umn.edu

🟢 Valid Certificate
Common Nameextension.umn.edu
IssuerLet's Encrypt
Issuer CNE8
Valid FromMay 13 12:02:48 2026 GMT
Valid UntilAug 11 12:02:47 2026 GMT (74 days left)
Serial Number056694EC55F6A83454C7F516BBCBCFF39B22
🌐 Subject Alternative Names (1)
ℹ️ About SSL Certificates

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

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