SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-186-85-0.us-west-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-186-85-0.us-west-2.compute.amazonaws.com
Self-signed- Issued by (CA)
- letsencrypt-nginx-proxy-companion
- Subject
- letsencrypt-nginx-proxy-companion
- Valid from
- Jun 27, 2024
- Valid until
- Jun 27, 2025 (expired 391 days ago)
- Public key
- RSA 4096-bit
- Serial
- 512D7F488F3A468294D630A5C8D3B7026EEA7A65
- SHA-256 fingerprint
- 47:0F:74:FE:23:2D:A4:C3:16:4C:05:DE:D1:BD:BF:5B:40:59:81:AD:72:CA:F4:10:13:EE:10:89:DD:D5:34:9D
- Chain
- letsencrypt-nginx-proxy-companion
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-54-186-85-0.us-west-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-186-85-0.us-west-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
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.