Certainly! DNS propagation resembles broadcasting updates across the internet. When changes occur on a website, like its address, it requires time to reach servers worldwide.

1. Understand DNS Propagation: What it is
and How it works?
DNS propagation is the process of updating DNS records throughout the internet. When
changes are made to your DNS records, like updating your website’s IP address or changing
your email provider. Those changes need to be propagated throughout the internet. Then only
they will come into effect.
Now let’s understand the hierarchy of DNS Servers
Root servers-
Top-level DNS servers that contain information about the top-level domains, for example, .com, .org,
and .net.
Top-level domain (TLD) servers-
Contains information about the second-level domains, for example, google.com or amazon.com.
Authoritative name servers-
Contains the DNS records for specific domains.

2. Recursive name servers-
It does the function of the bulk of the DNS resolution process by recursively querying other DNS servers
until they find the IP address associated with a domain name.
Now let’s understand the Purpose of the DNS records
Records-
It maps a domain name to an IP address.
CNAME records-
It maps a domain name to another domain name. It is useful for creating aliases or subdomains.
MX records-
Specify the mail servers that are responsible for accepting email for a domain.
TXT records-
Allow domain owners to add arbitrary text to their DNS records. It is later used for various purposes
such as verifying domain ownership or providing additional information.
Now coming to the point of how DNS propagation works
DNS stands for Domain Name System. It is responsible for mapping domain names to IP addresses,
which is necessary for internet connectivity. It provides users a way to access websites and services
using human-readable domain names. Due to this, they are not required to remember the IP addresses
of each device as every device on the Internet has its unique IP address.
The authoritative DNS server contains the official records for your domain. When the changes are made
on the authoritative DNS server, then the records updated are propagated to other DNS servers on the
internet.
During DNS propagation, DNS servers are updated worldwide, and their cached records with the new
information. Generally, DNS propagation takes place from a few minutes to up to 48 hours.
There are many factors that affect the time taken by DNS to propagate. One is TTL (Time to Live). It
determines how long the DNS servers and clients should cache your records before checking for updates
again. The longevity of the propagation changes depends upon the longevity of the TTL value. It also
depends upon the location of DNS servers. It determines how fast the propagation will travel. The lesser
the distance the less time it will take to travel. Then it also depends upon the number of DNS servers.
The more the number of DNS servers more time it will take for DNS propagation.
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