The purpose of an IP address is to help identify individual devices. In other words, the IP address of a device is used to differentiate it from other internet-connected devices. By using an IP address as a unique identifier, it is possible to create connections between devices and transfer information between them. When browsing online, you don’t need to remember every individual web­site’s IP address. Instead of a series of numbers resembling an IP address, web­sites have an address that’s more readable by people, such as www.f-secure.com.