SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dum-dilna.cz
SSL/TLS Certificate
SSL/TLS Certificate for dum-dilna.cz
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- www.dum-dilna.cz
- Valid from
- Sep 17, 2026
- Valid until
- Dec 16, 2026 (58 days remaining)
- Public key
- EC 384-bit
- Serial
- A562E387C88E3319699654AE4C4035D4
- SHA-256 fingerprint
- 74:CE:96:2A:C5:19:8F:0A:3F:27:8A:C9:66:DB:8A:E6:66:5E:03:42:AA:FF:0E:5E:BB:AD:19:59:CA:AA:55:8E
- Chain
- ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
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, 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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