The Web as we know it today is powered by a technology called the 'Domain Name System,' also known as DNS. It acts like a phone book for the internet, linking web servers with their corresponding website domain names. DNS is what takes you to Google when you type in google.com, so as you can imagine, DNS is a critical part of the infrastructure of the internet.

While most people simply use the default DNS servers provided by their carrier or internet service provider, alternative servers do exist. Google Public DNS has been a popular option for years, and CloudFlare's 1.1.1.1 DNS is a newer service that is quickly gaining ground.