SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zastec.pl
SSL/TLS Certificate
SSL/TLS Certificate for zastec.pl
Expired- Issued by (CA)
- Unizeto Technologies S.A.
- Subject
- *.alestaszic.edu.pl
- Valid from
- Sep 3, 2024
- Valid until
- Sep 3, 2025 (expired 334 days ago)
- Public key
- RSA 2048-bit
- Serial
- 7CF8D44FF44516E8F609CB6A9BA4E4DF
- SHA-256 fingerprint
- FB:FB:7F:B3:D5:54:9C:C9:A5:2B:F5:E8:BD:32:D7:56:F7:2C:EC:61:80:C7:B5:EF:F3:A9:11:A5:8B:DE:34:A8
- Chain
- Certum Domain Validation CA SHA2 → Certum Trusted Network CA
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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