SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
havirov-city.cz
SSL/TLS Certificate
SSL/TLS Certificate for havirov-city.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- havirov-city.cz
- Valid from
- May 28, 2026
- Valid until
- Aug 26, 2026 (33 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06D64C599A0CAB990E35DD2CB97972B8E70D
- SHA-256 fingerprint
- 58:71:85:85:AD:D0:F9:7B:5A:AE:08:5C:F3:45:C8:53:96:D9:DB:E3:7B:88:64:0E:F3:EE:F9:69:AD:BA:5E:22
- Chain
- R13 → 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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