SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for lz.cz
Valid- Issued by (CA)
- DigiCert, Inc.
- Subject
- lz.cz
- Valid from
- Sep 27, 2026
- Valid until
- Apr 13, 2027 (183 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 07E4F13A4F0451CCA82D7AE4C59C9DA6
- SHA-256 fingerprint
- 76:36:77:6A:62:F0:0B:89:29:E3:95:BC:DA:72:37:ED:91:19:19:A3:2F:E7:C2:FC:99:67:7E:AE:52:38:3F:2D
- Chain
- Encryption Everywhere G3 TLS ECC P384 SHA384 2023 CA1 → DigiCert Global Root G3
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 5, 2026.
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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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