Free DNS servers are need in few cases when your own DNS your internet provider DNS is not up to the mark. Or you might consider one if one of these is true in your scenario.

• Your internet speed is slow because of your existing DNS performance or not reliable.
• If you want use secure DNS services. This includes filtrations of adult content.
• In case you want privacy so that nobody know what exactly you are browsing over the internet.
• Lastly off course as parent you want to select clean internet services for your family and kids.

Followings are some popular public DNS service providers out there in the market.

Service Provider	Primary DNS	Secondary DNS
Google public DNS	8.8.8.8	8.8.4.4
Open DNS	208.67.222.222	208.67.220.220
Cloudflare	1.1.1.1	1.0.0.1
NextDNS	45.90.28.0	45.90.28.255
CleanBrowsing	185.228.168.168	185.228.169.168

• Google public DNS are widely used across the globe. It provides unfiltered open DNS services. These are one of the best performing public free DNS servers.
• OpenDNS also provides a feature called family shield that restricts adult and phonographic content. They also provide VIP services to premium customers.
• Cloudflare probably enjoys the popularity among all service providers in this era. They provider different controls and security features in their services.
• NextDNS is another popular DNS service provider who specialize in providing secure services.
• CleanBrowsing offers free and paid services both. Their focus is towards privacy and filtered internet to block adult content.

Although Free DNS servers are common out there. But we need to keep in mind that there might be privacy risks involved in using such services. Especially free one. Incase of free DNS, the service provider know what your are doing over the internet. All security features may not be free. We strongly advise our reader and check the details before making any decision and selecting services.

If you want to learn the fundamentals for DNS service. Have a look on our article “DNS Server – A Detailed Introduction“.