How the Domain Name System (DNS) Works

About DNS (Domain Name System)

Domain Name System is the Central Part of internet that Translates
Domain Names into Ip address and Ip into Domain name. because of the machine
can read only 0 & 1’s but human can’t remember it so that DNS comes.
human can easy to remember the alphabetic so that the domain names are used
DNS syncs up the domain names with the ip addresses

For Ex: The domain name example.com its traslate to 198.168.12.05

Lets See how the DNS are works.

When You type the doaminname.com into your browser, your browser sends a query over the internet to find the website, its searches the domain name with its corresponding ip address.

First your query interacts with the recursive resolver its operated by Internet Service provider (ISP)  The recursive resolver knows which other DNS server it needs to ask to answer your original query
what is the ip address of domainname.com

The first type of DNS server the recursive resolver talks to is called a Root Server
the root server are running all over the world and each one knows DNS information about Top Level Domain(TLD) such as .com the recursive resolver asks a root server for DNS information about .com

Next the resolver query the Top Level Domain the top level domain (TLD) DNS name server stores the address information for second level domains domainname.com. when your query reaches the TLD server the TLD Server answers with the ip address of the domain’s name server

Then the recursive resolver sends the query to the domain’s name server
This DNS server knows the IP address for the full domain, domainname.com and that
the answer return to the recursive resolver.

Finally the recursive resolver knows the ip address and its retrun to the browser and tells the ip address now your browser knows the ip address for that domain name it request to that website to load the website contant on your browser

This whole Process are taking a fraction of seconds.

Thank You….!