IP stands for Internet Protocol.
There are two versions of IP in use today:
A user agent is a string of text that identifies the client software originating a request on a network, typically a web browser. It provides information about the client software and operating system to the server, allowing the server to tailor responses to the specific capabilities of the client. User agents can also be used for web analytics, content customization, and troubleshooting.
A typical user agent string includes the following information: