I'm trying to figure out how/where a website gets its traffic.  How are they successful with bringing in traffic?  Via Organic, PPC, other?   What is the best approach to estimating this?My thought is to look at their top keywords from the meta tag, plug that into google keyword analysis tool to see how much traffic is generally brought to that site, and try to estimate how much of that traffic results in clicks (perhaps by using estimated PPC performance for that keyword using traffic estimation tool by google).  What do you think about this?But that would just cover traffic from google.  How about traffic from other sites like yahoo, bing, etc, etc..twitter, facebook, other links from other sites... how does one estimate this without spending days and days?  There has to be an app or easier way.  Any thoughts?  THanks.
Estimating where my competitor is getting most of their traffic from? Organic, PPC, or other?
seo;traffic;keywords;sem;competitors