Today I am going to talk about Top 5 Best Free Public DNS Servers To Use. If you are interested in computer related matters, you probably know about term DNS. DNS is a short form of Domain Name Server or Service. Domain Name Server is a major part of whole Internet architecture.
Mainly DNS Server is of two types:
- Authoritative DNS Server
- Recursive DNS Server.
For this article, we will concentrate on recursive DNS server. First, I will tell you What is DNS? We all browse many websites on daily basis. Every website holds a unique IP address. For opening a website, you should know about the domain name of the website. The main function of DNS (Recursive DNS) is to translate the domain name into its IP address. If there will be no DNS server, we have to type the IP address of every website in URL.
So DNS is an important part of the internet. If it goes down, you will be unable to browse the internet. For example; When we type google.com in URL, it translates this host-name or domain name into IP address 220.127.116.11.
When we connect to the internet, our ISP automatically assigns primary and secondary DNS server addresses to the computer. Most of the time these recursive DNS server is held by ISP. But do you know, ISP’s recursive DNS server is poorly optimized to take the load at peak time?
Means they are not capable of handling huge traffic, because of poor optimization. Also, these are vulnerable to attacks. But there are some great public DNS servers available, which are capable of handling huge traffic. Also, they are very secure and deliver fast internet every time.
One of a big problem with ISP DNS is that if it goes down, you will unable to browse the web. But in a case of these 3rd party public DNS servers, their servers are distributed worldwide. If one server near you goes down, another server near you will be ready to serve you.
List of Top 5 Best Free Public DNS Servers