Web Analytics Data Accuracy

August 27th, 2007 by Lars Johansson


Stone Temple Consulting has done head-to-head comparisons of different web analytics solutions and documented the differences in visitor, unique visitor and page view counts.

Raw unique visitor data
Comparison

Web Sites
AMD = AdvancedMD
CTI = City Town Info
HP = Home Portfolio
TPD = Tool Parts Direct



Max Differential Per Site – Unique Visitors
Max differential

Some of the factors that may influence counts:

  • Where the JavaScript code is pasted on the page
  • Cookie blocking
  • Spyware blocking
  • Data collection server down time
  • Network problems

Read the report

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