We keep finding inconsistencies between data in Analytics and the reports we get from other sources. In general, we notice about 40% less pageviews in Analytics than elsewhere:
- Correlating number of new accounts and number of views of the registration page.
- Comparing the pageviews on a subset of static page with the AWstats reports.
- Goals in our Analytics and reports from a partner tracking incoming links.
The differences are not negligible. More than 40% difference can't be just due to users with disabled JS or to JS errors. Or can it?
How to find out our rate of “lost” visits, visitors or hits?
What is the industry accepted rate of lost traffic?