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
- Oct 18, 2026
- Valid until
- Jan 16, 2027 (86 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0560F7FAD7D203CC779F679F2417805FBB9D
- SHA-256 fingerprint
- 19:A3:9B:50:64:66:6A:A7:2D:04:C1:12:94:2C:8F:FA:5C:DD:20:4F:BC:02:55:6B:7D:96:D0:9D:24:64:22:EF
- 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 17, 2026.
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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, CNAME, TXT 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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