SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for polk-systems.de

Valid
Issued by (CA)
Sectigo Limited
Subject
polk-systems.de
Valid from
Dec 9, 2025
Valid until
Dec 30, 2026 (157 days remaining)
Public key
RSA 2048-bit
Serial
A9775715942FFD3307B2C5C2094A9C2E
SHA-256 fingerprint
96:13:A9:21:4C:ED:33:6A:4E:99:2D:8E:EE:25:8F:C3:75:4A:9B:78:BC:C1:61:D4:42:DD:70:74:5E:B8:8F:D0
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (2)
polk-systems.de, www.polk-systems.de

Certificate Authority Authorization (CAA)

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

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TLS certificate

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