SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
spojovaci-material.cz
SSL/TLS Certificate
SSL/TLS Certificate for spojovaci-material.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kotevnitechnika.cz
- Valid from
- Jun 25, 2026
- Valid until
- Sep 23, 2026 (58 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0530A7C1D71E589B44C076D06FC53E751A7A
- SHA-256 fingerprint
- A4:4C:8C:4A:A4:26:06:0F:F9:D0:F4:34:46:3D:FC:ED:48:3A:3E:C1:80:AF:8E:4A:C4:53:5C:4E:40:10:7D:87
- Chain
- YR2 → Root YR → ISRG Root X1
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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