SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
prokser.pl
SSL/TLS Certificate
SSL/TLS Certificate for prokser.pl
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- prokser.pl
- Valid from
- Jan 18, 2023
- Valid until
- Jan 18, 2024 (expired 999 days ago)
- Public key
- RSA 2048-bit
- Serial
- F44EFFAF1FD998D7EC00B06C83D80556
- SHA-256 fingerprint
- 04:59:A4:0A:C5:BF:96:82:8A:C2:72:E2:73:44:F5:2D:69:65:09:3B:71:FC:FB:22:6F:91:F0:56:5E:EF:77:BC
- Chain
- —
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 2, 2026.
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Uptime
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DNS changes
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TLS certificate
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