SSL/TLS Certificate Lookup

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

cdpromo.com

SSL/TLS Certificate

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SSL/TLS Certificate for cdpromo.com

Hostname mismatch

Issued by (CA): Sectigo Limited
Subject: dtwresearch.com
Valid from: Feb 25, 2026
Valid until: Mar 2, 2027 (224 days remaining)
Public key: RSA 2048-bit
Serial: F918628F6D9BFB90B1C90DF3EBCFB623
SHA-256 fingerprint: AE:0E:0E:F9:EE:A9:2B:83:43:CE:34:36:38:63:8D:45:78:69:46:10:BF:9D:C0:EF:63:35:4D:21:FB:1D:B9:9F
Chain: Sectigo Public Server Authentication CA EV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority

Subject Alternative Names (2)

cdpromo.dtwresearch.com, dtwresearch.com

Certificate Authority Authorization (CAA)

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