Hmm... > # nslookup dennikn.sk. 10.0.0.2
Friends don't let friends continue to use "nslookup". Use "dig" instead. With that said, someone was at dnsviz.net 41 minutes ago testing, ref. https://dnsviz.net/d/dennikn.sk/dnssec/ but there's only warnings about the .SK name servers and missing DNS cookies for DNSKEY queries, and that should not (?) cause this issue. Best regards, - HÃ¥vard