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SSL Certificate: seonet.jp

🟢 Valid Certificate
Common Nameseonet.jp
IssuerLet's Encrypt
Issuer CNR12
Valid FromMay 7 18:09:52 2026 GMT
Valid UntilAug 5 18:09:51 2026 GMT (55 days left)
Serial Number05CE001A3A5788692E6C73E84BCA28E27BC6
🌐 Subject Alternative Names (1)
ℹ️ About SSL Certificates

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

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