Sitestat is the professional version of nedstat free analytics tool. Now owned by comScore.
http://www.nedstat.com/web/nedstatuk.nsf/pages/sitestat_web_analytics
Analytics and Tracking · Audience Measurement
Get access to data on 23,756 websites Sitestat Customers. We know of 1,819 live websites using Sitestat and an additional 21,937 sites that used Sitestat historically and 487 websites in the United States.
Get a list of 23,756 websites using Sitestat which includes location information, hosting data, contact details, 1,819 currently live websites and an additional 5,393 domains that redirect to sites in this list. 21,937 sites that used this technology previouslyand 487 websites in the United States currently using Sitestat.
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