SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for athenn-ai.com

Valid
Issued by (CA)
Amazon
Subject
athenn-ai.com
Valid from
Nov 7, 2026
Valid until
May 24, 2027 (195 days remaining)
Public key
RSA 2048-bit
Serial
434D0AD03F1E3B39C32ACC0FC3BA5A10
SHA-256 fingerprint
76:B9:39:8E:3C:6B:51:B2:72:F9:F3:31:16:A1:4E:12:5A:ED:B5:61:B5:E9:D1:7E:B4:78:11:7A:02:96:E2:F3
Chain
Amazon RSA 2048 S25 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (2)
athenn-ai.com, www.athenn-ai.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by athenn-ai.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch athenn-ai.com continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.