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 24,694 websites that are Sitestat Customers. We know of 2,084 live websites using Sitestat and an additional 22,610 sites that used Sitestat historically and 562 websites in the United States.
Get a list of 24,694 websites using Sitestat which includes location information, hosting data, contact details, 2,084 currently live websites and an additional 5,407 domains that redirect to sites in this list. 22,610 sites that used this technology previously and 562 websites in the United States currently using Sitestat.
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