“Set it and forget it” is the approach that most network teams follow with their authoritative Domain Name System (DNS). If the system is working and end-users find network connections to revenue-generating applications, services, and content, then administrators will generally say that you shouldn’t mess with success.
Unfortunately, the reliability of DNS often causes us to take it for granted. It’s easy to write DNS off as a background service precisely because it performs so well. Yet this very “set it and forget it” strategy often creates blind spots for network teams by leaving performance and reliability issues undiagnosed. When those undiagnosed issues pile up or go unaddressed for a while, they can easily metastasize into a more significant network performance problem.