The current demand for CDN service on the Internet is enormous. Graphics, documents, audio, video, scripts, you name it! Without efficient technology, it could be hard for a CDN (Content Delivery Network), and sometimes impossible, to satisfy users’ expectations worldwide.
What is DNS resolution?
DNS resolution is a vital process in which a requested domain typed in a human-friendly language (example.com) is translated into a computer language, an IP address (151.112.2.1). This process involves different servers to be accomplished. And no matter its complexity, it must take milliseconds to be considered efficient.
Shortly described, every time you (user) request a domain, you type it on your browser. Your request is taken by a recursive server that will look for the corresponding IP address for the domain you requested. Without the IP address, the domain, nor any of its content, can’t be loaded.