SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kabu-santo.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for kabu-santo.co.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- kabu-santo.co.jp
- Valid from
- Dec 25, 2025
- Valid until
- Dec 31, 2026 (55 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 337F257592EF09566B1E5970804BC8DE
- SHA-256 fingerprint
- 08:DF:0C:26:3F:A2:AC:F7:F5:89:95:68:6E:D9:81:39:6F:40:6E:77:4F:49:66:6C:F1:62:B8:36:2E:66:5B:8D
- Chain
- JPRS Domain Validation Authority - G4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 6, 2026.
Never get surprised by kabu-santo.co.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch kabu-santo.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, 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.