SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

ec2-35-167-2-130.us-west-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-35-167-2-130.us-west-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
airone.us
Valid from
Jun 30, 2026
Valid until
Sep 28, 2026 (67 days remaining)
Public key
RSA 2048-bit
Serial
05CAB81D0752DB1AD4E1D008B34BFC6853CE
SHA-256 fingerprint
19:B1:C3:F9:53:EA:78:10:5D:0B:5E:AF:DF:83:73:A7:53:AC:48:98:65:47:FC:BD:7E:C0:EE:15:57:9D:26:E5
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
airone.us

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by ec2-35-167-2-130.us-west-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-35-167-2-130.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.