The speed and reliability is generally better with a public DNS like Google’s rather than your default DNS servers. The biggest reason that users switch to using Google DNS is just that: performance. Because there are so many different domain origins on webpages now, DNS servers must execute multiple lookups for a single site, slowing down the process with your default servers from your ISP. Users can switch their DNS settings at any time and begin using a third-party server. Servers like Google Public DNS are third-party DNS servers, which are available to anyone. Your Internet service provider runs its own DNS servers which you can use with no issues. Whether or not you should use the Google DNS server depends on what your priorities are. This article aims to help you with just that: demystifying the concept, usability, and safety of the Google Public DNS. But to those who aren’t deep in the world of tech, the idea of it-and how it works-can be confusing. In 2009, Google created their own public DNS service with the intent of making the Internet faster and more secure: Google DNS.

Services like a DNS Lookup can help pair these domain names and IP addresses if a user doesn't know the IP address, which further improves ease of access for all users. It can be thought of as the “phonebook of the Internet,” resolving domain names to IP addresses in order to link users to websites without requiring them to remember a long and complicated string of numbers. The domain name system, or DNS, is one of the cornerstones of the Internet.

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