In the past, web analytics was about "consistency", not "accuracy". As
long as everything was reporting equally "inaccurate", we didn't care
b/c we could still get some insight from the data. It still happens
today when someone visits your site with javascript or 3rd-party cookies
disabled, they are excluded from tracking. Now days we have some really
cools tools that allow tracking data to be more accurate then before.
These include "server-side" tracking libraries, datasources, and the
data in...