realmaverick - 7:09 pm on Apr 14, 2012 (gmt 0)

If the phenomenon of zombie traffic exists, there would have to be either a) an increase in traffic or b) a change in SERPS. Logically at least.

One site I manage for an electrician, his traffic levels are consistant. He gets several calls a day but then randomly, he won't get a single call for several days. Traffic levels are normal, as are SERPs and keywords. I have no explanation for why this happens. It's not related to days of the week, weather nor anything else I can pinpoint.

Those who are experiencing the zombie traffic, would traffic for that day not be higher? and while conversion rates down, are overall conversions not the same?

It's hard to make sense of, if there are no visual changes in the SERPs.