| step | query | auth | servers |
| 1 | 53.247.171.69.in-addr.arpa. | . | (h,f,k,d,l,g,a,j,m,c,b,e,i).root-servers.net. |
| 2 | 53.247.171.69.in-addr.arpa. | in-addr.arpa. | (e,c,b,a,f,d).in-addr-servers.arpa. |
| 3 | 53.247.171.69.in-addr.arpa. | 69.in-addr.arpa. | (t,u,x,w,r,v,z,y).arin.net. |
| 4 | 53.247.171.69.in-addr.arpa. | 247.171.69.in-addr.arpa. | (b,a).ns.facebook.com. |
We pick