Do you have to put keywords in your for sale listing? I would never put together keywords + revenues for everyone to see.
I think an aggregate number of visitors (plus screenshot) from search engines would suffice in most cases - 124,283 visitors from search engines 43,987 direct visits 67,932 referal site visits Total revenue was $3,203.
Most all companies what to see the info first hand and what we have been required to do for a company to verify the traffic is create them a user account in Google Analytics so the info can be verified.
Google Analytics has become the norm for buyers. They also require at least one other verification another tracker you may use or log files for a certian period of time.
Selling a site is a different animal from a brick and Motor business as we all know traffic is the key so it has to be veriffied.
An intrested buyer will also require at least 2 years of taxes so there really isn't a thing you can hide.
If your gonna sell you will have to be open to showing everthing as you wouldn't buy a business based on what I tell ya. You would require proof so if ya put her up for sell be ready to show all.
Doing an analysis to sell or not to sell depends on your asking price and what the counter offer is.