Well, I know this is not the total answer you;re looking for, but I use SEOQUAKE to look at stats like external backlinks. Then I check the page rank and other authority of those sites where the backlinks came from. This can be a great help in seeing why organic traffic is coming there. ...and tells me where I need to go to get same.

As far as paid traffic, I don't know. I'm not knowledgeable in that area.
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Bruce

Best thing I know of is:

SEMRush - service for competitors research, shows Google organic and AdWords keywords for any site or domain

Yeah, cool tools which I am kinda familiar with, but the problem is they focus on google rankings and google's adwords...

...which kinda helps a little I suppose, but nowhere near a complete picture these days.

You can reverse engineer most SEO... However, it's important to realize you won't see direct visitors. Things like: URLs being mentioned in videos on YouTube and other video sites, e-mail links from affiliates, and I don't think it's possible to track most ad traffic (could be wrong though).

I'll tell you what I got an email about about a free piece of software that does exactly this I believe a couple of days ago. I'll dig it out for you. I think it meets your requirements from memory

Try typing into google "the rank decoding engine" if it doesn't give you the free one then pm me and I'll give you the link from the email

Whatever tools you use - don't think you have the whole picture. Many successful businesses are grown due to relationships which you cannot see.

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