List of Best Free Public DNS Servers To Use

I was stunned to find out that using a free public DNS server from a trustworthy company was far better than using local ISP DNS, especially when travelling in foreign nations. And if you’re looking forward to shift from your ISP DNS to another provider then this blog post is for you.

There are a bunch of free public DNS servers you can use. Some DNS servers provide additional benefits like filtering out phishing scams, blocking adult sites, etc.

What is DNS (Domain Name System)?

Best Free Public DNS Servers

The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. Most importantly, it converts domain names, which can be easily remembered by humans, to the numerical IP addresses needed for the purpose of computer services and devices worldwide. The Domain Name System allocates the responsibility of assigning domain names and mapping those names to IP addresses by labeling authoritative name servers for each domain.

Top 5 Best Free Public DNS Servers

Below are top 5 free DNS servers you can use instead of the ones assigned by your Internet Service Provider (ISP).

1. Open DNS:

Open DNS - Best Free Public DNS Servers

Open DNS is one of the oldest and most experienced free public DNS servers among others, which provides DNS resolution service along with parental controls and web filtering. The main benefit of this open DNS server is the URL spell correction. It also provides protection from phishing and domain blocking.

This is an excellent choice if you have kids and want to prevent them from landing on malware-infested websites or if you have older family members who occasionally click on spam links in emails.

  • Preferred DNS server:
  • Alternate DNS server:

2. Google Public DNS:

The first third-party DNS service – Google Public DNS is the most popular and world’s largest free public DNS server. It also supports latest technologies and security mechanisms like IPv6 connectivity and protects against cache poisoning and DoS attacks. The main benefit of using Google Public DNS is their global data center that are located all around the globe.

To use Google public DNS server, you should configure your existing DNS settings by using following DNS IP addresses.

  • Preferred DNS server:
  • Alternate DNS server:

3. Level 3 DNS:

Level 3 DNS

Level 3 DNS is a third-party DNS server that is fast, secure and reliable, which provides remarkable performance. Level 3 is the company that offers a lot of Internet Service Providers (ISPs) their connection to the Internet backbone. And, there’s no filtering with Level 3, just like Google Public DNS. Depending on your location in the world, Level 3 DNS automatically route to the nearest public DNS server operated by Level 3 Communications.

  • Preferred DNS server:
  • Alternate DNS server:

4. Norton ConnectSafe DNS:

Norton ConnectSafe is another third-party cloud-based public DNS service provider, which offers enhanced protection. Like OpenDNS, Norton also has automatic filtering and blocking based on their database of websites. Norton DNS has a couple of different DNS servers, depending on the type of protection you want. There are mainly three DNS policies provided by Norton ConnectSafe. They are as follows.

  1. A – Protection against malware, phishing and scam websites
  2. B – A + Pornography
  3. C – A + Pornography + Other

Other will basically block websites related to mature content, gambling, hate, suicide, tobacco, drugs, alcohol, etc.

Norton DNS IP Addresses:

Option A:
Preferred DNS server:
Alternate DNS server:

Option B:
Preferred DNS server:
Alternate DNS server:

Option C:
Preferred DNS server:
Alternate DNS server:

5. Comodo Secure DNS:

Comodo Secure DNS

Comodo Secure DNS is yet another DNS service that offers faster and reliable internet browsing experience than using DNS servers provided by your ISP. Like Norton, it guarantees security against home and office internet and optimizes browsing speed. To use Comodo Secure DNS, you should configure the DNS settings of your network by using below-mentioned DNS IP addresses.

  • Preferred DNS server:
  • Alternate DNS server:

These were some free public DNS servers that are pretty amazing and plays a significant role in all our internet interactions.

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