SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-52-8-79-148.us-west-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-52-8-79-148.us-west-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- *.usw.stg.1c.app.1nce-tech.net
- Valid from
- Jul 26, 2026
- Valid until
- Feb 8, 2027 (93 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0CDE29B9A30FF48B654040E119DD66F3
- SHA-256 fingerprint
- 18:A6:7D:FE:78:D9:3E:AB:07:FE:F1:56:4E:6F:D6:1E:B1:34:F3:0B:4A:3B:E1:77:08:36:0F:45:DD:2C:6B:EF
- Chain
- Amazon RSA 2048 M01 → 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 ec2-52-8-79-148.us-west-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-52-8-79-148.us-west-1.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.