SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
prime-strategy.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for prime-strategy.co.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.prime-strategy.co.jp
- Valid from
- Apr 14, 2026
- Valid until
- Oct 30, 2026 (85 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 2268752768ED99C6DEB0B1F2
- SHA-256 fingerprint
- AC:5F:69:A8:0A:50:B7:94:E5:15:6B:3C:4F:AB:FE:55:A6:78:18:D5:E6:D2:D0:CB:61:D5:DB:F0:96:39:B6:82
- Chain
- GlobalSign RSA OV SSL CA 2018 → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by prime-strategy.co.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch prime-strategy.co.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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