SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
yugawara-sci.or.jp
SSL/TLS Certificate
SSL/TLS Certificate for yugawara-sci.or.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.yugawara-sci.or.jp
- Valid from
- Nov 11, 2026
- Valid until
- Feb 9, 2027 (88 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 067F666423B66172A8191F22683F977D60E8
- SHA-256 fingerprint
- 39:8D:13:02:AA:ED:AD:9D:19:80:E3:BB:C5:D4:12:B4:67:9E:E6:CA:B1:A3:16:24:CC:F6:3A:F7:98:79:88:08
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
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