the first line of http request message is called a request line.
the first line of http request message is called ____?
a request line
the client sends requests to the server and the server sends responses.





























section::::message format.:request message.





























the request message consists of the following:





























bullet::::- a request line (e.g., "get /images/logo.png http/1.1", which requests a resource called from the server.)





























bullet::::- request header fields (e.g., "accept-language: en").





























bullet::::- an empty line





























bullet::::- an optional message body
hypertext transfer protocol
section::::basic steps of the web analytics process.:web analytics data sources.





























the fundamental goal of web analytics is to collect and analyze data related to web traffic and usage patterns. the data mainly comes from four sources:





























bullet::::1. direct http request data: directly comes from http request messages (http request headers).





























bullet::::2. network level and server generated data associated with http requests: not part of an http request, but it is required for successful request transmissions - for example, ip address of a requester.
web analytics