- Staff
- #11
- 1,588
Quantcast, Compete and Alexa are all unreliable for the demographics of any site with a rank above 10,000 or so.
They buy ISP data, but they have to make too many assumptions and their data isn't statisticly significant at those levels.
They buy ISP data, but they have to make too many assumptions and their data isn't statisticly significant at those levels.