DNS is a network of name servers with a tree-like structure that makes them work together to resolve domain names to their IP addresses. They do it, so billions of users can enjoy the Internet the way it is right now. One of the key elements that allows it is the DNS delegation. One higher-level server can delegate a part of the namespace to a lower DNS name server, and that way, it became the Primary DNS server for the zone it got delegated.
Having an online business pushes us to get the best out of technology to increase our chances of succeeding. Every network protocol, software, hardware, or tool can become a key component in our strategy if we know how to utilize its possibilities.
That said, let’s talk about Backup DNS (Secondary DNS) as a first step for understanding its benefits.