SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gc-sage.org
SSL/TLS Certificate
SSL/TLS Certificate for gc-sage.org
Valid- Issued by (CA)
- Amazon
- Subject
- www.gc-sage.org
- Valid from
- Dec 20, 2025
- Valid until
- Jan 18, 2027 (92 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05D23FA727CB4818EA92C310EACA0E8D
- SHA-256 fingerprint
- 68:8A:F3:AD:B7:BF:A4:F7:14:7A:DF:68:EB:AF:03:B3:E4:6C:63:08:84:66:77:34:3A:B5:18:20:80:11:25:F4
- 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.
This certificate has been served since Sep 11, 2026.
Never get surprised by gc-sage.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch gc-sage.org 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.