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 collma.sk

Valid
Issued by (CA)
Let's Encrypt
Subject
collma.sk
Valid from
Jul 12, 2026
Valid until
Oct 10, 2026 (81 days remaining)
Public key
RSA 2048-bit
Serial
05677AA8994A5754EA84F1F6B83DF7136D15
SHA-256 fingerprint
E8:CD:1E:D0:C5:D1:83:98:8B:AD:BD:C3:A3:F2:BA:B5:1A:11:11:E9:23:6C:33:B7:C3:19:4A:1B:BA:92:DB:06
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (10)
adminer.collma.sk, collma.sk, game.collma.sk, hra.collma.sk, mail.collma.sk, phpmyadmin.collma.sk, sutaz.collma.sk, test.collma.sk, webmail.collma.sk, www.collma.sk

Certificate Authority Authorization (CAA)

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