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SSL Certificate: m-seikan.com

🟢 Valid Certificate
Common Namem-seikan.com
IssuerLet's Encrypt
Issuer CNYR2
Valid FromMay 31 11:18:51 2026 GMT
Valid UntilAug 29 11:18:50 2026 GMT (76 days left)
Serial Number0582E012FE3DF95737316DB4A356B376F6E6
🌐 Subject Alternative Names (2)
ℹ️ About SSL Certificates

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

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