SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-16-58-147-113.us-east-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-16-58-147-113.us-east-2.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- athena.us-east-2.api.aws
- Valid from
- Oct 3, 2026
- Valid until
- Apr 20, 2027 (155 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 40442BE5CDA27E1217752D5FA84C7994
- SHA-256 fingerprint
- D8:4E:44:7A:30:81:09:A7:23:74:95:36:8A:9F:4D:C9:A0:86:5E:54:5B:35:C8:BA:AF:B1:BA:12:81:F4:9C:69
- Chain
- Amazon RSA 2048 S19 → 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.
Never get surprised by ec2-16-58-147-113.us-east-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-16-58-147-113.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.