SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
vysokenapeti.cz
SSL/TLS Certificate
SSL/TLS Certificate for vysokenapeti.cz
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- vysokenapeti.cz
- Valid from
- May 18, 2026
- Valid until
- Nov 18, 2026 (96 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 08C83472BF87019D2919B15C05D99196
- SHA-256 fingerprint
- 41:6D:40:7D:96:BE:5E:C5:CA:76:04:3F:FE:24:57:BF:93:91:18:C2:22:27:3D:1E:8E:9E:5E:49:E6:84:79:0C
- Chain
- GeoTrust TLS RSA CA G1 → DigiCert Global Root G2
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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