SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for sts-thailand.com

Valid
Issued by (CA)
Google Trust Services
Subject
sts-thailand.com
Valid from
Aug 18, 2026
Valid until
Nov 16, 2026 (74 days remaining)
Public key
EC 256-bit
Serial
81451A1FCDDDB30D0EA43D3659F6A708
SHA-256 fingerprint
42:59:19:76:B0:23:5A:00:52:6E:C9:05:09:70:CE:E8:66:8A:31:01:65:28:AA:6C:4B:2E:CD:0D:82:B3:86:46
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.sts-thailand.com, sts-thailand.com

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 Aug 31, 2026.

Never get surprised by sts-thailand.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch sts-thailand.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.