Nowadays web analytics is a “mouthful” that everyone is tossing around just to have the feeling that they know what they are doing online. Some people may get very technical about it and start rumble about third parties cookies, conversion funnels, shinystat data without even understanding what the topic of discussion is.
I believe that web analytics is nothing but a tool that can be used (with various degrees of complexity) to backup your decisions on your activity online. Unfortunately the biggest problem with web analytics comes up when it is used not as a “decision tool“, but as a “decision maker“. If the data that we find using web analytics tools are not used to test hypothesis but to guide our decisions, we are taking business decisions based on the interpretation of a sign, as much as haruspices used to do with animals.