SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-52-16-230-91.eu-west-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-52-16-230-91.eu-west-1.compute.amazonaws.com
Self-signed- Issued by (CA)
- Acme Co
- Subject
- Kubernetes Ingress Controller Fake Certificate
- Valid from
- May 12, 2026
- Valid until
- May 12, 2027 (288 days remaining)
- Public key
- RSA 2048-bit
- Serial
- C161F7C3F7BD1A902224F25F445D0B95
- SHA-256 fingerprint
- 4D:6C:8B:9A:E6:8F:97:14:8A:34:2D:CA:FB:9A:6F:81:FD:70:0B:09:C5:98:75:CF:DB:93:1B:01:A2:15:B7:A9
- Chain
- —
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 26, 2026.
Never get surprised by ec2-52-16-230-91.eu-west-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-52-16-230-91.eu-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, 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
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.