A public IPv4 address is an outward-facing unique address assigned to a network router by an Internet Service Provider (ISP) and is used to access the Internet. It allows devices to be identified and communicate with each other over the internet.
Public IP addresses are commonly used by publicly accessible enterprises such as websites, DNS, and VPN servers because they can be accessed from anywhere in the world. Public IP addresses are necessary for devices to go online and are visible to every website visited.
They are used to communicate outside the local network and are essential for providing services on the Internet, such as configuring a server, providing remote access to a machine, and many other benefits. If you want to find your public IP address, you can use search engines like Google or visit websites that display your public IP address.