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The Domain Name System (DNS) is a central part of the Internet which, simply put, provides a way to find resources online. Anything connected to the Internet, including laptops, tablets, mobile phones, websites, and now your car, refrigerator and countless other machines in the Internet of Things (IoT), has an Internet Protocol (IP) address made up of numbers. Your favorite website might have an IP address consisting of a set of numbers separated by periods like 188.8.131.52, but this is not always easy to remember. However, a domain name, such as “1and1.com,” is something people can recognize and remember. The DNS connects domain names with IP addresses, enabling people to use memorable domain names to navigate the Internet.
Let’s briefly explore the process that keeps more than 3 billion Internet users1 and 284 million domain names2 connected.