Matching Click Numbers for AdSense and MyBlogLog?

    March 20, 2007

In MyBlogLog and AdSense, Dom recounts a discrepancy between his AdSense click data as reported by Google and MyBlogLog.

It’s a simple question, but one I’ve been struggling with ever since one of my sites received a large spike in traffic. MyBlogLog’s stats and AdSense’s stats showed roughly the same number of impressions (give or take what you’d expect for people who block ads), but the stats for click-outs were totally different – by a factor of 10!

I’ve also seen this myself, but most days the numbers are pretty close to each other. They’re unlikely to ever be exactly the same, for a variety of reasons:

  • Google does click fraud detection and removal. MyBlogLog doesn’t.
  • MyBlogLog click tracking will timeout quickly (dropping the click) if there’s a network problem that slows it down.
  • AdSense stats are usually based on a 24 hour day in the Pacific timezone, while MyBlogLog uses Eastern Time.
  • And so on…

Having said all that, do you compare your stats between the two? If so, are they in the same ballpark most of the time? What’s the biggest discrepancy you’ve seen so far?