SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-186-106-86.us-west-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-186-106-86.us-west-2.compute.amazonaws.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- dev.imusti.com
- Valid from
- May 16, 2025
- Valid until
- Aug 14, 2025 (expired 343 days ago)
- Public key
- EC 256-bit
- Serial
- 05033AB31542E84136D4D6CF3EC72247D99F
- SHA-256 fingerprint
- 12:2D:58:85:98:BC:EB:CE:B2:96:19:BF:5F:C7:37:C7:6B:09:1B:DC:33:91:B4:99:AC:68:F4:ED:FC:BD:55:C8
- Chain
- E5 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-54-186-106-86.us-west-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-186-106-86.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.