18.104.22.168 is the public IP address of your computer. If your computer is behind a router or used a proxy server to view this page, the IP address shown is your router or proxy server.
Your IP Address Detail:
What is an IP Address:
The Internet Protocol Address (or IP Address) is a unique address that computing devices such as personal computers, tablets, and smartphones use to identify itself and communicate with other devices in the IP network. Any device connected to the IP network must have a unique IP address within the network. An IP address is analogous to a street address or telephone number in that it is used to uniquely identify an entity.
The traditional IP Address (known as IPv4) uses a 32-bit number to represent an IP address, and it defines both network and host address. A 32-bit number is capable of providing roughly 4 billion unique numbers, and hence IPv4 addresses running out as more devices are connected to the IP network. A new version of the IP protocol (IPv6) has been invented to offer virtually limitless number of unique addresses. An IP address is written in "dotted decimal" notation, which is 4 sets of numbers separated by period each set representing 8-bit number ranging from (0-255).
For more information IP address
You must need public IP address to go online:
To use the internet, all connected devices must have a public IP address. An IP address allows two devicesï¿½the sender and recipient of internet communicationsï¿½to find and exchange information with each other.
The setup is similar to real-life address systems. For example, if you were to subscribe to a magazine, the magazine distributor (the sender) would need your address to send you (the recipient) your copies. Without your address, the distributors wouldnï¿½t know where to send the magazine.
The same applies to the internet. Without an IP address, two devices would not be able to find and exchange information with each other.