SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bunka-bi.ac.jp
SSL/TLS Certificate
SSL/TLS Certificate for bunka-bi.ac.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.bunka-bi.ac.jp
- Valid from
- Jun 28, 2026
- Valid until
- Sep 26, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 058855C5FD0DB4B9FD6207BF7FE65EDCCF05
- SHA-256 fingerprint
- 1F:93:EF:C2:EB:C4:E3:84:9C:11:5D:D4:0B:8D:8A:49:9E:A5:5E:CA:51:54:6B:B7:2E:AA:7D:07:E7:44:AD:BC
- 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.
This certificate has been served since Jul 25, 2026.
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TLS certificate
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