SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-18-222-116-102.us-east-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-18-222-116-102.us-east-2.compute.amazonaws.com
Self-signed- Issued by (CA)
- example.com
- Subject
- example.com
- Valid from
- Jan 13, 2023
- Valid until
- Jan 12, 2028 (521 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 731008BF2CCFD6AD9CFAF20DC26B3F06D355A859
- SHA-256 fingerprint
- 15:F2:C1:DB:E3:BD:7D:8F:B8:35:31:4C:8A:82:3F:E7:F7:0C:30:B2:04:AB:40:C8:04:33:DE:0F:2A:58:16:AB
- Chain
- example.com
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-18-222-116-102.us-east-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-18-222-116-102.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
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.