SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
amami-hca.or.jp
SSL/TLS Certificate
SSL/TLS Certificate for amami-hca.or.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- amami-hca.or.jp
- Valid from
- Oct 16, 2026
- Valid until
- Jan 14, 2027 (70 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 068870BE408C1252992796627EC2CCB0B3B9
- SHA-256 fingerprint
- 72:B1:9A:63:78:64:E7:F4:7F:84:9E:CA:37:63:7D:12:84:3D:0E:9E:BF:7F:E4:BD:7A:EA:A7:8E:C7:BA:59:C3
- 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.
Never get surprised by amami-hca.or.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch amami-hca.or.jp continuously, notifying you the moment anything moves across all three signals:
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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.