SSL/TLS Certificate Lookup

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

mail.go.th

SSL/TLS Certificate

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SSL/TLS Certificate for mail.go.th

Valid

Issued by (CA): Sectigo Limited
Subject: *.mail.go.th
Valid from: Sep 5, 2025
Valid until: Oct 6, 2026 (55 days remaining)
Public key: RSA 2048-bit
Serial: 913BE744FA0781D4A606D09E73AF27A3
SHA-256 fingerprint: 5D:7F:FF:A3:DC:B8:01:60:5B:53:D6:B1:92:FE:6D:59:0C:F0:78:D6:C7:6E:9E:A4:8D:E9:E0:8D:AC:29:B2:D3
Chain: Sectigo RSA Domain Validation Secure Server CA → USERTrust RSA Certification Authority

Subject Alternative Names (2)

*.mail.go.th, mail.go.th

Certificate Authority Authorization (CAA)

The serving CA (Sectigo Limited) is not among the authorities this domain's CAA records authorize (digicert.com). This can indicate a misconfiguration or an unexpected issuance.

This certificate has been served since Jul 29, 2026.

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DNS changes

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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.

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