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 cpu-zeto.pl

Untrusted chain
Issued by (CA)
Unizeto Technologies S.A.
Subject
*.cpu-zeto.pl
Valid from
Aug 13, 2025
Valid until
Aug 13, 2026 (17 days remaining)
Public key
RSA 2048-bit
Serial
7DCB77801A4C958A96731D9A7F8E8F0B
SHA-256 fingerprint
9A:7F:2C:8F:15:A6:3B:63:3F:B5:85:4A:2E:5E:BB:A4:3B:55:B6:FC:CE:01:95:4C:5E:85:54:C4:97:32:DE:7F
Chain
Subject Alternative Names (2)
*.cpu-zeto.pl, cpu-zeto.pl

Certificate Authority Authorization (CAA)

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

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Uptime

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DNS changes

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TLS certificate

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