SSL/TLS Certificate Lookup

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

ec2-18-140-9-6.ap-southeast-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-18-140-9-6.ap-southeast-1.compute.amazonaws.com

Self-signed
Issued by (CA)
SpinupWP
Subject
—
Valid from
Oct 28, 2019
Valid until
Oct 27, 2022 (expired 1478 days ago)
Public key
RSA 2048-bit
Serial
393C852B82F1E8605B13EC52D865B10FC6C34E77
SHA-256 fingerprint
76:65:59:4E:AB:0D:38:36:55:01:08:07:9C:B6:F3:56:F3:0A:97:10:D6:7E:4E:79:F5:DC:9C:55:DF:5A:A4:CD
Chain
—

Certificate Authority Authorization (CAA)

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

This certificate has been served since Sep 25, 2026.

Never get surprised by ec2-18-140-9-6.ap-southeast-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-18-140-9-6.ap-southeast-1.compute.amazonaws.com continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.