said 1 year, 2 months ago:
I have clients who are running banner ads on other sites driving people to Facebook. The ad performance from the third party sites shows good traffic to Facebook yet Insights is missing most of this traffic. I know Facebook is making changes to make Insights real time. This is a terrible way to implement the change by not reporting traffic at all because I am analyzing the effectiveness of these sites to deliver. Have other people seen Insights grossly under report referring site traffic in the last month?