As per Gartner Group, "It has long been said you cannot manage what you cannot measure. Nowhere is this more true than on the Web – where examining what works and what doesn't directly influences the bottom line." – Quote serves well and truly in sync with Web Analytics value to Web. According to definition by WAA (Web Analytics Association), Web Analytics is the measurement, collection, analysis and reporting of Internet data for the purpose of understanding and optimizing Web usage. To be precise, Web Analytics is the study of visitor, navigation, and traffic patterns to determine the success of a given web site. There are two categories of Web Analytics – off-site and on-site.