The Best Free and Public DNS Servers (2023)

The Best Free and Public DNS Servers (2023)

by Ravi Singh
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best free DNS for fast internet

The Domain Name System is an essential component of your internet infrastructure that translates the human-readable website name into IP addresses that computers can understand. Every device connected to the internet uses a DNS server to perform this translation, but not all DNS servers are created equal.

Some of them can be slow or unreliable which leads to slow internet speeds or security risks. This is why choosing the best DNS servers is essential for improving internet speed, security, and privacy. Fortunately, many free and public DNS servers are available that can help enhance your internet experience.

These servers can also offer additional security features such as blocking malicious domains and protection against phishing attacks. Read on to explore the best public and free DNS servers of 2023, their benefits, and their drawbacks to get a better understanding of choosing the best DNS for your needs.

What are DNS Servers?

DNS is considered a phonebook of the internet. It translates the website names into an IP address, making it easier for us to access the websites we want to visit on the internet.

The algorithm of DNS is quite complex, as most of its information is not stored in a single database, instead, it is widely distributed in a global directory. This global directory contains a vast number of DNS servers.

Fortunately, users do not get involved in the DNS server. Whenever a user types something on the browser, the DNS searches it with the corresponding IP address which loads the website on the screen.

Best Free Public DNS Servers in 2023

There are various best DNS servers to use from. However to choose the best we have listed DNS servers that can be used for both mobile devices and computers.

DNS ServerPrimary IPSecondary IPBenefitsDrawbacks
Google Public DNS8. browsing, accurate results, improved securityMeant for experienced users
Quad99.9.9.9149.112.112.112Blocks malicious websites and supports DoHLimited setup
Cloudflare1. DNS, tight privacy, supports DoH and TLSNo significant drawbacks
AdGuard DNS94.140.14.1494.140.15.15Prevents tracking, blocks unwanted websitesNo significant drawbacks
ControlD76. your location, improves privacy and securityRequires custom configuration
OpenDNS208.67.222.222208.67.220.220Veteran operator, optional web filteringNo significant drawbacks
CleanBrowsing185.228.168.9185.228.169.9The paid version has more functionalitiesNot recommended for inexperienced users
Alternate DNS76.76.19.1976.223.122.150Blocks ads and unsafe web pagesBlocks malicious websites supports DoH


  • Primary DNS servers are preferred DNS servers while Secondary DNS is alternate DNS. Both of them can be mixed and matched from different providers to protect your data if the primary DNS server has any problems.
  • IPv6 addresses are also available for some DNS servers, providing additional support for IPv6 connections.

Google Public DNS

Google has offered three core benefits in its DNS i.e. faster browsing experience, accurate results without getting redirects, and improved security features.

Google public dns
  • Primary DNS:
  • Secondary DNS:

For IPv6 Versions

  • Primary DNS: 2001:4860:4860::8888
  • Secondary DNS: 2001:4860:4860::8844

Google has secured the fastest internet speed with its public DNS servers as the data centers are hosted across the world. This means that whenever you try to access a website on the internet using the above IP address, you will be directed to the nearest servers. Also, along with the traditional DNS over TCP/ UDP, Google has introduced DNS over HTTPS (DOH) and TLS (DoT) for the internet.

Why you Buy:

  • Solid Privacy Front
  • Commendable Transparency

Why Not:

  • Meant only for experienced users


Quad9 is also a popular free public DNS server that protects your computer from getting into malicious websites. It also protects the system from security threats by immediately blocking access to dangerous websites without saving your information.

quad 9 dns
  • Primary DNS:
  • Secondary DNS:

For IPv6 DNS Servers

  • Primary DNS: 2620:fe::fe
  • Secondary DNS: 2620:fe::9

Quad9 does not filter the website content, instead, it blocks phishing or malware attacks. There is also an unsecured IPv4 public DNS server (i.e. no malware blocking) at (2260:fe::10 for IPv6). It also supports DoH.

Why you Buy:

  • Speed Performance Levels
  • Blocks the malicious web

Why Not:

  • Limited setup


Cloudflare is among the best DNS servers which comes with the fastest internet DNS directory. It won’t allow you to log into your IP address, never sell data and use your data for creating target ads.

cloudflare dns
  • Primary DNS:
  • Secondary DNS:

For IPv6 Version

  • Primary DNS: 2606:4700:4700::1111
  • Secondary DNS: 2606:4700:4700::1001

One of the methods to use Cloudflare is through the app, which helps you to set up your DNS servers quickly on mobile as well as computer systems. This also doubles as VPN, the for families should block malware ( or malware and adult content ( It supports the DNS over HTTPS and TLS also.

Why to Buy:

  • Impressive Performance
  • A community forum for support
  • Tight Privacy Levels

Why Not:

  • No reason

AdGuard DNS

AdGuard DNS server has two different sets which can block ads of games, videos, apps, and websites. The basic AdGuard set is called Default servers, which block the ads and trackers.

adguard dns
  • Primary DNS:
  • Secondary DNS:

Ipv6 also supported to

  • Primary DNS: 2a10:50c0::ad1:ff
  • Secondary DNS: 2a10:50c0::ad2:ff

AdGuard also has Family Protection servers whose IPs are and 2a10:50c0:: bad1:ff. It usually blocks all the adult content including everything stored in your Default servers. It also has a non-filtering server if you are not interested in blocking anything i.e. and 2a10:50c0::1:ff. It is also available as DNS over HTTPS, QUIC, TLC, and DNSCrypt.

Why you Buy:

  • Prevent from tracking
  • Blocks unwanted websites

Why Not:

  • No reason


ControlD is popular because of the choice to choose from several DNS servers. Each of them is categorized by theme. Its uncensored proxy, commonly blocked the websites of most countries to bypass the IP of various news web pages. Other servers are used for stopping all malicious websites, blocking ads and trackers, social networks, and all adult content. It has a basic option of Unfiltered which offers DNS query privacy and security.

controID dns
  • Primary DNS:
  • Secondary DNS:

For the IPv6 DNS server version

  • Primary DNS: 2606:1a40::
  • Secondary DNS: 2606:1a40:1::

ControlD also has a custom configuration that you can set up if standard configurations are not good for the websites. For instance, join the trackers and ads, phishing, malware, and gov websites for making custom filters on the server. It also has a subscription at a very low cost. ControlD supports both DoH and DoT.

Why you Buy:

  • Spoof your location
  • Improves privacy and productivity

Why Not:

  • It’s a custom configuration


OpenDNS has millions of user bases with 100 percent reliability and time. They provide two free public DNS servers, one of them for parental control and having dozens of filtering options.

opendns free dns
  • Primary DNS:
  • Secondary DNS:

For IPv6 version

  • Primary DNS: 2620:119:35::35
  • Secondary DNS: 2620:119:53::53

The servers mentioned above are for the OpenDNS Home, used for custom settings. The company also has OpenDNS FamilyShield which blocks adult content. Its IP address is and Both of them support DNS servers over HTTPS.

Why you Buy:

  • Veteran Operator
  • Phishing websites are blocked by default
  • Optional Web filtering

Why Not:

  • No reason


CleanBrowsing is also a public DNS server that can block unsafe web pages. It is the best DNS which typically has 3 public DNS servers i.e. family filter, security filter, and adult filters. However, the most basic of them which block malware and phishing sites update on an hourly basis.

clean browsing free dns
  • Primary DNS:
  • Secondary DNS:

IPv6 addresses are also available

  • Primary DNS: 2a0d:2a00:1::2
  • Secondary DNS: 2a0d:2a00:2::2

The family filter ( blocks the VPNs, proxies, and mixed adult content whereas the adult filter ( only prevents you from accessing adult domains. CleanBrowsing also supports DoT and DoH.

Why you Buy:

  • Safe Browsing Experience
  • Block Malicious Contents

Why Not:

  • For experienced

Alternate DNS

Alternate DNS is among the free DNS servers whose main purpose is to block ads and unsafe web pages from reaching your network.

alternate dns free dns
  • Primary DNS:
  • Secondary DNS:

IPv6 address also supported to

  • Primary DNS: 2602:fcbc::ad
  • Secondary DNS: 2602:fcbc:2::ad

A fairly new DNS server, which provides good speed and most users prefer its server and uptime.

Why you Buy:

  • Reliability and Server Uptime
  • Blocks unsafe websites

Why Not:

  • Paid has various functionalities

Note: If you are not sure, you can use IPv4 DNS servers provided by the DNS provider. These are some IP addresses that include periods. The Ipv6 address uses colons.

Why Use Different DNS Servers?

Internet server issue is the main reason behind switching to different DNS servers. One of the easy methods you can use to test DNS servers is just by visiting the website IP address in your browser. If you successfully log in to the IP address, but not the name, then your DNS server is most likely having some issues.

Some also change due to performance issues such as sluggish or slower browsing experience. If the existing DNS servers are not good enough, you can double up your internet speeds by switching to these servers. Another reason is for protecting your privacy and login information. Using DNS servers can block those websites from storing information and other malicious websites.

Last Words

By jumping into free DNS servers, you might encounter small technical issues and much more responsive browsing experiences. Some of the DNS servers have security features like blocking phishing and unsafe websites and filtering search results. We recommend you choose the DNS server which best suits your needs and provides a good user experience.

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