| sunjsu1.jsums.edu. (143.132.1.9) | sunjsu2.jsums.edu. (68.216.176.34) | sunjsu3.jsums.edu. (173.166.213.226) |
| Responsive over UDP | OK | OK | OK |
| Responsive over TCP | OK | OK | OK |
| Answers authoritatively (AA bit) | OK | OK | OK |
| SOA serial consistent | OK | OK | OK |
| SOA authority correct (NXDOMAIN) | OK | OK | OK |
| SOA consistent (NXDOMAIN) | OK | OK | OK |
| SOA authority correct (Empty Answer) | OK | OK | OK |
| SOA consistent (Empty Answer) | OK | OK | OK |
| EDNS capable | OK | OK | OK |
| PMTU sufficient | | | |
| Returns DNSKEY | | | |
| Returns RRSIG | | | |
| Returns NSEC/NSEC3 (NXDOMAIN) | | | |
| Returns RRSIG covering NSEC/NSEC3 (NXDOMAIN) | | | |
| Returns NSEC/NSEC3 (Empty Answer) | | | |
| Returns RRSIG covering NSEC/NSEC3 (Empty Answer) | | | |