SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
koga-cc.jp
SSL/TLS Certificate
SSL/TLS Certificate for koga-cc.jp
Expiring soon- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.koga-cc.jp
- Valid from
- Jul 17, 2026
- Valid until
- Aug 19, 2026 (4 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 02419A4C2D95E97C8B7AC86F
- SHA-256 fingerprint
- 66:43:A4:E3:81:D8:DC:BF:A9:EA:89:69:6E:99:A1:48:C0:D2:45:DF:A5:86:5F:70:70:F8:D7:16:90:AB:29:AC
- Chain
- GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by koga-cc.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch koga-cc.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.