SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-3-19-25-252.us-east-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-3-19-25-252.us-east-2.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- mo-390e07a40ad8440ba0729bec25ce5934.ecs.us-east-2.on.aws
- Valid from
- Oct 31, 2026
- Valid until
- May 17, 2027 (189 days remaining)
- Public key
- EC 256-bit
- Serial
- 407B5D69467FFD7CA9FC1ED33FC0DC4F
- SHA-256 fingerprint
- 7E:F6:43:5B:EF:8E:BB:53:EF:EA:F6:E7:D0:08:F5:23:DC:BC:9A:FA:83:D5:D4:4D:E1:59:15:70:C5:A6:2F:8F
- Chain
- Amazon ECDSA 256 S14 → Amazon Root CA 3 → 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.
Never get surprised by ec2-3-19-25-252.us-east-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-3-19-25-252.us-east-2.compute.amazonaws.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, 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.