| ns1.centralnic.net. (89.151.83.36) | ns2.centralnic.net. (185.24.64.10) | ns2.centralnic.net. (2a04:2b00:13cc::1:10) | ns3.centralnic.net. (194.169.218.10) | ns3.centralnic.net. (2001:67c:13cc::1:10) | ns4.centralnic.net. (89.151.83.34) | ns5.centralnic.net. (194.169.218.11) | ns5.centralnic.net. (2001:67c:13cc::1:11) | ns6.centralnic.net. (194.0.2.2) | ns6.centralnic.net. (2001:678:5::2) | ns7.centralnic.net. (193.105.170.169) | ns8.centralnic.net. (185.24.64.11) | ns8.centralnic.net. (2a04:2b00:13cc::1:11) |
| Responsive over UDP | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Responsive over TCP | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Answers authoritatively (AA bit) | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| SOA serial consistent | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| SOA authority correct (NXDOMAIN) | | | | | | | | | | | | | |
| SOA consistent (NXDOMAIN) | | | | | | | | | | | | | |
| SOA authority correct (Empty Answer) | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| SOA consistent (Empty Answer) | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| EDNS capable | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| PMTU sufficient | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Returns DNSKEY | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Returns RRSIG | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Returns NSEC/NSEC3 (NXDOMAIN) | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Returns RRSIG covering NSEC/NSEC3 (NXDOMAIN) | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Returns NSEC/NSEC3 (Empty Answer) | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |
| Returns RRSIG covering NSEC/NSEC3 (Empty Answer) | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK | OK |