SSL/TLS Certificate Lookup

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

teserco.de

SSL/TLS Certificate

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SSL/TLS Certificate for teserco.de

Valid
Issued by (CA)
Sectigo Limited
Subject
*.teserco.de
Valid from
May 21, 2026
Valid until
Dec 5, 2026 (137 days remaining)
Public key
RSA 2048-bit
Serial
56DE15BF8010217184AD3485542E60E8
SHA-256 fingerprint
30:2E:25:7A:7B:6F:5F:92:57:C6:0D:85:78:71:73:7A:C8:D0:C5:37:A8:92:BA:44:2E:15:D6:79:45:71:4C:AA
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
*.teserco.de, teserco.de

Certificate Authority Authorization (CAA)

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