What means public dns?

Public DNS is a domain name system (DNS) service that resolves domain names to IP addresses and vice versa. It is called “public” because it is available to anyone who wants to use it.

DNS is the system that translates domain names (such as www.example.com) into IP addresses (such as When you type a domain name into your web browser, your computer sends a request to a DNS server to resolve the domain name into an IP address. The DNS server looks up the IP address and sends it back to your computer, which then connects to the website’s server using the IP address.

Public DNS services are provided by a variety of organizations, including Internet service providers (ISPs), domain name registrars, and other companies. They are typically free to use and can be accessed by anyone who has an Internet connection. Public DNS services can improve the performance, security, and reliability of your Internet connection by providing faster and more reliable DNS lookups.

Here is a list of public free DNS servers that you can use:

  1. Google Public DNS IP addresses:, Website: https://developers.google.com/speed/public-dns/

  2. Cloudflare DNS IP addresses:, Website: https://developers.cloudflare.com/

  3. OpenDNS IP addresses:, Website: https://www.opendns.com/

  4. Quad9 DNS IP addresses:, Website: https://www.quad9.net/

  5. CleanBrowsing DNS IP addresses:, Website: https://cleanbrowsing.org/

  6. AdGuard DNS IP addresses:, Website: https://adguard.com/en/adguard-dns/overview.html

  7. FreeDNS IP addresses:, Website: https://freedns.zone/

  8. Norton ConnectSafe IP addresses:, Website: https://connectsafe.norton.com/

Note that these are just a few examples, and there are many other public free DNS servers available. It is important to choose a reputable DNS provider that is known for reliability and security.