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 sarah-4-iowa.com

Valid
Issued by (CA)
Amazon
Subject
sarah-4-iowa.com
Valid from
Oct 6, 2026
Valid until
Apr 21, 2027 (170 days remaining)
Public key
RSA 2048-bit
Serial
021B67E1A65AE8DFD0CB5BA5AF27D301
SHA-256 fingerprint
0D:70:F2:FD:D1:5D:F2:F6:82:B1:CD:41:B7:02:6A:8D:CE:D8:B6:15:4B:83:69:1E:BE:37:38:A0:C4:4F:F6:23
Chain
Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (1)
sarah-4-iowa.com

Certificate Authority Authorization (CAA)

The serving CA (Amazon) is authorized by this domain's CAA records (amazon.com).

Never get surprised by sarah-4-iowa.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch sarah-4-iowa.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.