| step | query | auth | servers |
| 1 | 23.234.171.69.in-addr.arpa. | . | (j,m,e,l,g,b,k,f,i,d,c,a,h).root-servers.net. |
| 2 | 23.234.171.69.in-addr.arpa. | in-addr.arpa. | (a,f,d,c,e,b).in-addr-servers.arpa. |
| 3 | 23.234.171.69.in-addr.arpa. | 69.in-addr.arpa. | (x,z,w,y,u,v,r,t).arin.net. |
| 4 | 23.234.171.69.in-addr.arpa. | 234.171.69.in-addr.arpa. | (b,a).ns.facebook.com. |
We pick