Web analytic's is the collection, analysis, and reporting of internet data for the purpose of understanding and optimizing web usage. Web analytic's is not just a tool for measuring website traffic but can be used for business research and market research. 

Web analytic's will help measure the results of print advertising campaigns, e-mail campaigns, TV advertisements etc. It may help estimate how traffic to a website changes after the launch of a new advertising campaign. 

Web analytic's provides information about the websites:

• number of visits
• absolute unique visitors
• page views
• average page views
• time on site
• bounce rate

Browser Capabilities:

• browsers
• operating systems
• browsers and operating systems combined
• screen colors
• screen resolutions
• flash versions
• java support

Demographics:

• language
• country/territory
• city

Network Properties:

• service providers
• host names
• connection speeds

Traffic Source: