SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
yanai-co.jp
SSL/TLS Certificate
SSL/TLS Certificate for yanai-co.jp
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- yanai-co.jp
- Valid from
- Sep 2, 2025
- Valid until
- Dec 1, 2025 (expired 243 days ago)
- Public key
- RSA 2048-bit
- Serial
- 051A223BCB50A87FCD39E7A64FBAA10D4627
- SHA-256 fingerprint
- 58:23:C1:D4:D7:9E:E2:D8:61:D2:35:D9:56:81:14:7B:26:ED:D1:54:85:21:9F:9C:44:EF:4B:C0:47:60:A9:90
- Chain
- R13 → 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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