SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-213-146-124.us-west-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-213-146-124.us-west-2.compute.amazonaws.com
Self-signed- Issued by (CA)
- SomeOrganization
- Subject
- ip-172-31-18-130
- Valid from
- Feb 3, 2017
- Valid until
- Feb 3, 2018 (expired 3092 days ago)
- Public key
- RSA 2048-bit
- Serial
- 590E
- SHA-256 fingerprint
- B9:64:FB:AD:AA:1C:B0:A1:78:AD:EB:66:79:83:C7:EB:37:BA:A1:D3:3E:D3:FE:3F:18:30:97:E1:3D:0A:64:A9
- Chain
- ip-172-31-18-130
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-54-213-146-124.us-west-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-213-146-124.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.