None of these are accurate, but they build their businesses off of trying to estimate better than the next guy. Even Google Analytics does a poor job with the stats, and they have code embedded on the site. The only true good stats come off the server.

In regards to these stats, I would take an average of everything and then add maybe 20%. I think that is a good rule of thumb. Looking at the charts above, I would say Compete is better than Quantcast, if for nothing more than the fact that Quantcast has zero values for months, which is obviously wrong.

Conor

Congrats on being listed in DNFAME!

My question is regarding accuracy.

The stats for Compete are different from those on Quantcast.

Which is the more accurate measure?

Thanks,
Claude