Ask HN: How do Compete.com or Quantcast collect data? I can't find a good explanation to how they product traffic and other data. |
Ask HN: How do Compete.com or Quantcast collect data? I can't find a good explanation to how they product traffic and other data. |
So small time ISP might share what sites are being visited, so they extrapolate on that. Alexa uses a toolbar, for example. So they know what sites people are browsing.
Quantcast lets you add your own codes, so then you get an actual measurement of traffic.