SSL Certificate: library-matsudo.jp
🟢 Valid Certificate
| Common Name | www.library-matsudo.jp |
|---|---|
| Organization | matsudo city board of education |
| Issuer | DigiCert Inc |
| Issuer CN | DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
| Valid From | Sep 8 00:00:00 2025 GMT |
| Valid Until | Oct 6 23:59:59 2026 GMT (125 days left) |
| Serial Number | 018DDA27556E8DACABD9C533773D407F |
🌐 Subject Alternative Names (2)
ℹ️ About SSL Certificates
SSL (Secure Sockets Layer) certificates encrypt data between your browser and library-matsudo.jp's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Library-matsudo website.
Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.
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