SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-3-148-20-156.us-east-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-3-148-20-156.us-east-2.compute.amazonaws.com
Self-signed- Issued by (CA)
- Acme Co
- Subject
- Kubernetes Ingress Controller Fake Certificate
- Valid from
- May 15, 2026
- Valid until
- May 15, 2027 (284 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 22937A9476E5AFF13C464FD6D75E6E32
- SHA-256 fingerprint
- 0E:33:56:B2:E0:9A:CB:3B:14:47:CC:B3:65:B9:57:7B:76:5A:92:9C:72:D7:01:6D:0D:10:2C:24:3F:53:5C:5C
- Chain
- —
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch ec2-3-148-20-156.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, DNSSEC, CNAME 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
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