| step | query | auth | servers |
| 1 | 209.172.0.141.in-addr.arpa. | . | (e,b,d,l,f,g,c,a,j,i,h,m,k).root-servers.net. |
| 2 | 209.172.0.141.in-addr.arpa. | in-addr.arpa. | (b,f,a,e,d,c).in-addr-servers.arpa. |
| 3 | 209.172.0.141.in-addr.arpa. | 141.in-addr.arpa. | tinnie.arin.net. sns-pb.isc.org. ns3.nic.fr. sec1.apnic.net. sec3.apnic.net. pri.authdns.ripe.net. |
| 4 | 209.172.0.141.in-addr.arpa. | 172.0.141.in-addr.arpa. | (ns1,ns4,ns2,ns3).serverstack.com. |
We pick