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 na-ko.pl
Expired- Issued by (CA)
- Unizeto Technologies S.A.
- Subject
- *.na-ko.pl
- Valid from
- May 23, 2024
- Valid until
- May 23, 2025 (expired 478 days ago)
- Public key
- RSA 4096-bit
- Serial
- 2FBD21843378527A5D3ADD4AA1B2DA3E
- SHA-256 fingerprint
- AF:F3:AD:9A:A4:99:96:EE:94:78:E6:96:FC:C6:31:B2:B2:BE:44:0B:6E:A6:0C:5E:51:7E:DA:79:DA:C3:2E:20
- 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.
This certificate has been served since Aug 27, 2026.
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TLS certificate
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