SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for z-nix.jp
Valid- Issued by (CA)
- Amazon
- Subject
- z-nix.jp
- Valid from
- Feb 1, 2026
- Valid until
- Mar 2, 2027 (198 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0E5FC03285C218F6FD36695C248F6BAA
- SHA-256 fingerprint
- E0:80:E4:3E:79:BD:01:1A:E7:7B:C9:17:1B:C0:21:38:F1:61:CE:AB:27:00:8A:5B:EB:BF:17:6E:DA:C4:F8:6A
- Chain
- Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by z-nix.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch z-nix.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, 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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