SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kostkareda.pl
SSL/TLS Certificate
SSL/TLS Certificate for kostkareda.pl
Valid- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- kostkareda.pl
- Valid from
- Jul 29, 2026
- Valid until
- Feb 13, 2027 (162 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 29269C4432E5EE54C1923EF12F84E206
- SHA-256 fingerprint
- FA:FC:6A:54:30:55:7B:05:A6:39:0C:14:8B:27:D5:06:DC:4D:05:32:14:AF:8B:67:C5:89:3B:85:BE:A0:00:96
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA → 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 Sep 2, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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