SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jiken-navi.com
SSL/TLS Certificate
SSL/TLS Certificate for jiken-navi.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.jiken-navi.com
- Valid from
- Aug 19, 2026
- Valid until
- Nov 17, 2026 (30 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05BEBFF6BEA3D42A4269555AE9FAF3EBBF52
- SHA-256 fingerprint
- 12:7A:B8:B1:E5:B0:6A:53:6B:98:5B:71:F8:19:59:77:29:48:A9:F7:52:A8:7B:08:57:60:8C:68:B2:0F:F4:93
- 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
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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