What is Google DNS
Google Public DNS represents two servers with IP addresses for IPv4 – 18.104.22.168 and 22.214.171.124. 126.96.36.199 is the primary DNS, 188.8.131.52 is the secondary one.
Google DNS service is free to use and can be used by anyone who has access to the Internet. You can use Google servers IP addresses as alternate DNS instead of such provided by your ISP with the purpose to resolve Internet names faster and improve your security.