Where can I find free DNS servers?

A list of additional free DNS servers can be found in the table near the bottom of the page. What Are DNS Servers? DNS servers translate the friendly domain name you enter into a browser (like lifewire.com) into the public IP address that’s needed for your device to actually communicate with that site.
For More Information Please Refer:
https://www.lifewire.com/free-and-public-dns-servers-2626062
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