SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cereus.com.pl
SSL/TLS Certificate
SSL/TLS Certificate for cereus.com.pl
Expired- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- cereus.com.pl
- Valid from
- Apr 15, 2026
- Valid until
- Oct 31, 2026 (expired 12 days ago)
- Public key
- RSA 4096-bit
- Serial
- 669A032B934EBFAB157A95CA75925E81
- SHA-256 fingerprint
- A3:D1:1A:DA:FA:3B:4E:28:56:33:E9:9F:A9:C4:B6:ED:3F:36:FC:1F:3E:30:FD:8F:72:54:89:20:39:6C:29:41
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 28, 2026.
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Uptime
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DNS changes
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TLS certificate
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