SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kasacja-aut.pl
SSL/TLS Certificate
SSL/TLS Certificate for kasacja-aut.pl
Valid- Issued by (CA)
- Google Trust Services
- Subject
- kasacja-aut.pl
- Valid from
- Sep 17, 2026
- Valid until
- Dec 16, 2026 (56 days remaining)
- Public key
- EC 256-bit
- Serial
- 9991EDED355675250E092636AC1A1654
- SHA-256 fingerprint
- 2D:42:52:E3:72:1D:98:36:32:E2:F5:0B:B4:D6:72:42:D3:F7:A7:08:71:5C:D5:8B:AB:26:43:9B:AD:D7:EF:46
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 22, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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