SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-18-222-21-120.us-east-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-18-222-21-120.us-east-2.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- odmaapp.com
- Valid from
- May 29, 2026
- Valid until
- Aug 27, 2026 (31 days remaining)
- Public key
- EC 256-bit
- Serial
- 0643C4F81EB54A244D515E9E366D2F2A06D7
- SHA-256 fingerprint
- 86:CB:B4:1F:33:88:36:FF:96:AD:24:7A:F8:BD:97:92:2B:29:F2:63:A7:28:29:60:0F:95:18:0D:3F:FF:54:0F
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 ec2-18-222-21-120.us-east-2.compute.amazonaws.com's certificate expiring
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Uptime
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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.
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