SSL/TLS Certificate Lookup

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

zast.eus

SSL/TLS Certificate

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SSL/TLS Certificate for zast.eus

Valid
Issued by (CA)
Let's Encrypt
Subject
zast.eus
Valid from
Jun 29, 2026
Valid until
Sep 27, 2026 (68 days remaining)
Public key
RSA 2048-bit
Serial
05CA5D1968973D2DAE5EE7D58A3949F17771
SHA-256 fingerprint
EE:A2:E8:0A:2D:23:1F:67:88:88:E1:C6:38:87:1A:5F:DD:BF:83:41:71:BD:16:B3:45:68:E7:7D:6C:37:8B:4A
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (3)
webmail.zast.eus, www.zast.eus, zast.eus

Certificate Authority Authorization (CAA)

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