SSL/TLS Certificate Lookup

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

ec2-34-208-1-144.us-west-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-34-208-1-144.us-west-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
dev.api.fairsquare.com
Valid from
Sep 19, 2026
Valid until
Apr 4, 2027 (140 days remaining)
Public key
RSA 2048-bit
Serial
0D8490919B432E578EEDB18EBBB859B9
SHA-256 fingerprint
FC:CE:30:A7:29:42:9C:01:88:03:CB:95:F4:72:C7:43:19:BC:F4:11:03:17:77:B4:25:3E:EF:9A:0F:1A:19:27
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (1)
dev.api.fairsquare.com

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-34-208-1-144.us-west-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-34-208-1-144.us-west-2.compute.amazonaws.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.