SSL/TLS Certificate Lookup

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

ec2-13-159-100-160.ap-northeast-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-13-159-100-160.ap-northeast-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
airhost.jp
Valid from
Dec 28, 2025
Valid until
Jan 26, 2027 (187 days remaining)
Public key
RSA 2048-bit
Serial
031BBC36AB6A3EF904733EBEE9867266
SHA-256 fingerprint
9E:26:C8:E1:36:FB:08:9B:76:A2:2A:79:02:08:0E:16:96:BA:2F:2E:C4:DF:C2:6D:02:80:B1:4A:44:3A:F4:BB
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (1)
airhost.jp

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-13-159-100-160.ap-northeast-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-13-159-100-160.ap-northeast-1.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.