SSL/TLS Certificate Lookup

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

ec2-47-129-66-211.ap-southeast-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-47-129-66-211.ap-southeast-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
*.i-screen.sg
Valid from
Jan 25, 2026
Valid until
Feb 23, 2027 (103 days remaining)
Public key
RSA 2048-bit
Serial
0FCB1875F516C0BB87B12B45EF1C16BB
SHA-256 fingerprint
A3:95:45:C3:68:FF:54:E4:E7:89:52:08:25:F6:11:43:E1:A5:C6:D7:18:05:89:87:EE:CF:09:5A:68:16:2A:30
Chain
Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (2)
*.i-screen.sg, i-screen.sg

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-47-129-66-211.ap-southeast-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-47-129-66-211.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.