SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-15-165-138-131.ap-northeast-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-15-165-138-131.ap-northeast-2.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- nomadlee.com
- Valid from
- Jul 7, 2026
- Valid until
- Oct 5, 2026 (74 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 056A11D9DA30FA14739C2A9D6F58B0A91553
- SHA-256 fingerprint
- 14:7C:F8:6C:47:3D:C8:7A:0D:DC:69:D0:36:A1:A7:48:EC:07:11:4B:EF:D9:77:7A:F8:61:39:F8:4D:CC:95:71
- Chain
- YR2 → Root YR → 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 ec2-15-165-138-131.ap-northeast-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-15-165-138-131.ap-northeast-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.