SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

t-zones.cz

SSL/TLS Certificate

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SSL/TLS Certificate for t-zones.cz

Hostname mismatch
Issued by (CA)
Entrust Limited
Subject
*.t-mobile.cz
Valid from
Mar 23, 2026
Valid until
Oct 7, 2026 (78 days remaining)
Public key
RSA 3072-bit
Serial
F70614DBA188AC18EE0485C73CD2D64E
SHA-256 fingerprint
84:3F:CF:86:CB:B2:5F:00:1D:CA:F6:0D:66:AA:61:AD:E0:B0:82:08:FD:86:19:5E:5C:7B:EA:00:95:64:50:74
Chain
Entrust OV TLS Issuing RSA CA 2 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (2)
*.t-mobile.cz, t-mobile.cz

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.