% dig google.com ns ; <<>> DiG 9.8.3-P1 <<>> google.com ns ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59704 ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 4 ;; QUESTION SECTION: ;google.com. IN NS ;; ANSWER SECTION: google.com. 2863 IN NS ns1.google.com. google.com. 2863 IN NS ns4.google.com. google.com. 2863 IN NS ns3.google.com.