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SSL Certificate: libraryplus.jp

🟡 Expiring Soon (29 days)
Common Namewww.libraryplus.jp
IssuerLet's Encrypt
Issuer CNR13
Valid FromMar 26 15:33:35 2026 GMT
Valid UntilJun 24 15:33:34 2026 GMT (29 days left)
Serial Number05E3F0A76A19CF0ECF6EFAEB4407105A26BB
🌐 Subject Alternative Names (2)
ℹ️ About SSL Certificates

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

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