SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nakajo-denki.com
SSL/TLS Certificate
SSL/TLS Certificate for nakajo-denki.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- nakajo-denki.com
- Valid from
- Sep 20, 2026
- Valid until
- Dec 19, 2026 (41 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 066152AB607BE2CCA4143B60D84F88D781CE
- SHA-256 fingerprint
- A9:8F:08:F8:89:1F:64:E9:E5:E2:6C:9B:8B:82:9B:16:D2:78:54:B5:E7:1E:64:82:04:02:F1:A3:E8:3F:85:5B
- 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 Oct 4, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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