SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ookura-ac.jp
SSL/TLS Certificate
SSL/TLS Certificate for ookura-ac.jp
Valid- Issued by (CA)
- Amazon
- Subject
- ookura-ac.jp
- Valid from
- Sep 28, 2026
- Valid until
- Apr 13, 2027 (154 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0674FD9DC9BC7543384AC102D5066122
- SHA-256 fingerprint
- 7A:55:84:32:97:1E:C3:94:F0:13:3F:67:5D:31:66:41:91:F3:6E:DB:51:4B:92:90:3C:5E:97:BC:23:4F:94:7E
- 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 ookura-ac.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ookura-ac.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.
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