Wednesday, September 29, 2010 | 10:18 AM
Last week, we saw how a website owner removed traffic from his latest promotion to study the effects of that promotion on his data. The blue line represents all visits over a 2-week period. The spike in the middle is due to a 50%-off referral-based promotion.
Then, he looked at each of the reports in the Traffic Sources section -- the Direct Traffic report , Referring Sites report, and Search Engines report-- to find out where the non-promo traffic spike was coming from. Here’s the graph he saw when he looked at the Search Engines report.