SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sbc-nagano.com
SSL/TLS Certificate
SSL/TLS Certificate for sbc-nagano.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- www.s-b-c.net
- Valid from
- Nov 5, 2025
- Valid until
- Dec 4, 2026 (134 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 058120B11257A45FC072B518BDD540CD
- SHA-256 fingerprint
- 00:70:F3:F2:89:1A:11:06:E7:DA:36:62:0D:5B:F6:BA:95:3B:A7:B5:94:58:23:F1:C5:A3:6D:4C:91:40:15:35
- Chain
- Amazon RSA 2048 M04 → 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 sbc-nagano.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sbc-nagano.com 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.