We dont choose our domain randomly, we get them allocated to us. Actually, co.zw is now the most preferred standard way to make internet names and dns manageable. There are different extensions like .org, .net, .mil(used US military only), .gov etc The .co means a country The .zw means Zimbabwe. All as a single search means a country called Zimbabwe. The naming structure cannot be done randomly to suit individual needs at top level domains like country domains in our case .co.zw