SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
yakei-ex.jp
SSL/TLS Certificate
SSL/TLS Certificate for yakei-ex.jp
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- www.yakeikentei.jp
- Valid from
- Oct 23, 2026
- Valid until
- Jan 21, 2027 (80 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05CEA91533B52EFCBAD01C1B43F388A747AE
- SHA-256 fingerprint
- AA:2B:A4:A0:99:22:E8:49:A6:13:E4:20:3F:39:30:F8:4A:6D:16:29:07:69:66:FB:E8:9C:F6:1A:22:A9:33:53
- Chain
- YR1 → 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 Oct 26, 2026.
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Uptime
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DNS changes
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TLS certificate
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