SSL Certificate: ptt.edu

đŸŸĸ Valid Certificate
Common Nameptt.edu
IssuerLet's Encrypt
Issuer CNR13
Valid FromFeb 5 17:05:38 2026 GMT
Valid UntilMay 6 17:05:37 2026 GMT (32 days left)
Serial Number061765A2717E2CF973706F4B647CB82B207E
🌐 Subject Alternative Names (2)
*.ptt.eduptt.edu
ℹī¸ About SSL Certificates

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

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

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