SSL/TLS Certificate Lookup

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

siamtech.ac.th

SSL/TLS Certificate

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SSL/TLS Certificate for siamtech.ac.th

Valid
Issued by (CA)
Let's Encrypt
Subject
siamtech.ac.th
Valid from
Jul 21, 2026
Valid until
Oct 19, 2026 (89 days remaining)
Public key
RSA 2048-bit
Serial
0581D54715972361A9295097F8D5A7F223F2
SHA-256 fingerprint
AA:6F:51:D8:35:6F:3D:F4:6A:F9:92:68:B4:FA:A0:32:4A:3A:07:1C:81:7F:76:16:1E:11:49:CB:CD:9D:65:BD
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
siamtech.ac.th, www.siamtech.ac.th

Certificate Authority Authorization (CAA)

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