SSL/TLS Certificate Lookup

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

ec2-52-221-99-4.ap-southeast-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-52-221-99-4.ap-southeast-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
americanstandard-apac.com
Valid from
Feb 3, 2026
Valid until
Mar 4, 2027 (113 days remaining)
Public key
EC 384-bit
Serial
053C63A4DA77BF8034E3BEDAD415C995
SHA-256 fingerprint
A2:37:ED:96:CE:D3:87:29:38:02:6A:53:CC:58:99:19:31:0D:49:24:27:9A:09:E0:BA:4F:ED:06:E6:82:C0:26
Chain
Amazon ECDSA 384 M04 → Amazon Root CA 4 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (20)
*.americanstandard-apac.com, *.americanstandard.co.id, *.americanstandard.co.nz, *.americanstandard.co.th, *.americanstandard.com.au, *.americanstandard.com.mm, *.americanstandard.com.my, *.americanstandard.com.sg, *.americanstandard.com.vn, *.americanstandard.hk, *.americanstandard.in, *.americanstandard.ph, *.lixil.co.id, *.lixil.co.in, *.lixil.co.kr, *.lixil.co.th, *.lixil.com.ph, *.lixil.com.sg, americanstandard-apac.com, lixil.com.my

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-52-221-99-4.ap-southeast-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-52-221-99-4.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.