What is my User Agent, What is my browser version?
HTTP header fields are components of the message header of http requests and responses. They define the operating parameters of an HTTP transaction. A user agent is one of such header fields and is used to identify client application implementing a network protocol used in communications within a client–server distributed computing system. The term most notably refers to applications that access the World Wide Web, but other systems, such as the Session Initiation Protocol (SIP), use the term user agent to refer to both end points of a communications session.
Your Request Headers
x-gzip, gzip, deflate