SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
klasektrading.cz
SSL/TLS Certificate
SSL/TLS Certificate for klasektrading.cz
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- klasektrading.cz
- Valid from
- Apr 10, 2026
- Valid until
- Oct 25, 2026 (95 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 4E0FCA60563ACC337269C8BE0505E131
- SHA-256 fingerprint
- 43:42:DA:B6:E3:EE:7F:BF:0B:1F:EE:DC:CD:33:4E:F2:94:BB:12:C2:D4:0F:81:6D:E7:BB:F2:46:14:FD:90:39
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME 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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