A trick to save you a few bucks from robots
On low-cost traffic sources you'll often see suspicious traffic...
One way to 'catch' it is to put a link on your page that is not visible to the human eye...
Load a page with traffic tracking on it from that link...
Any 'visitor' that clicks through is probably not a human...
Dump those low-performing sources of traffic...
You can get as advanced as you need with this depending on your programming skills, but at the very least this is a quick way to get a visual clue of who is ripping you off.
Barry Rutherford
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