SSL/TLS Certificate Lookup

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

ust-gmbh.com

SSL/TLS Certificate

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SSL/TLS Certificate for ust-gmbh.com

Hostname mismatch

Issued by (CA): Sectigo Limited
Subject: www.ust-gmbh.de
Valid from: May 19, 2026
Valid until: Dec 3, 2026 (125 days remaining)
Public key: RSA 2048-bit
Serial: 1702885355CC7D95C3655CBA915AB6FA
SHA-256 fingerprint: A0:4E:49:78:00:20:D0:D2:E5:18:06:91:AC:32:79:FF:8F:60:41:EB:E5:58:A1:D8:33:EA:87:6A:C1:5E:7B:6C
Chain: Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority

Subject Alternative Names (2)

ust-gmbh.de, www.ust-gmbh.de

Certificate Authority Authorization (CAA)

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

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