As part of my new job, I'm learning a lot more about the mysteries of the Domain Name System than any mortal should know I thought possible. The humble unix dig command allows you to query all sort of DNS information. For example, to see name server records for the BBC website, you can run: dig bbc.co.uk NS Which will get you: ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3561