SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jeff-barr.com
SSL/TLS Certificate
SSL/TLS Certificate for jeff-barr.com
Valid- Issued by (CA)
- Amazon
- Subject
- jeff-barr.com
- Valid from
- Feb 16, 2026
- Valid until
- Mar 16, 2027 (173 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0B47997893B15C72D4550788A35AC82A
- SHA-256 fingerprint
- 8F:8F:AF:8B:F1:62:A3:7F:69:31:B7:1E:5E:CB:D5:FF:05:79:F1:F0:69:3B:F3:B7:6F:81:D5:5D:FE:02:D0:1B
- 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 19, 2026.
Never get surprised by jeff-barr.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jeff-barr.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.