We pick j.root-servers.net, one of the 13 root servers (1), and ask it about secorreo.impsat.net.co and learn that co is delegated to six name servers (2), so we ask ns5.cctld.co where we learn that impsat.net.co is delegated to two name servers, including juno.impsat.net.co (3), so we ask that one where we see a CNAME from secorreo.impsat.net.co to correo.gestionsecretariasdeeducacion.gov.co, so we have to start all over again. We already know that ns5.cctld.co is authoritative for co (4) and ask it about correo.gestionsecretariasdeeducacion.gov.co and learn that gestionsecretariasdeeducacion.gov.co is delegated to two name servers (5), so we ask juno.impsat.net.co and get the following answer:
