SSL Certificate: ecc.ac.jp

🟡 Expiring Soon (21 days)
Common Nameecc.ac.jp
IssuerLet's Encrypt
Issuer CNR12
Valid FromJan 25 15:46:19 2026 GMT
Valid UntilApr 25 15:46:18 2026 GMT (21 days left)
Serial Number05550311B6B4FA8E7CB9F3C5E0618713C049
🌐 Subject Alternative Names (1)
â„šī¸ About SSL Certificates

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

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