Classic Google Analytics - sites that are using non-universal analytics code.
https://developers.google.com/analytics/devguides/collection/gajs/
Analytics and Tracking
Get access to data on 23,207,063 websites that are Google Analytics Classic Customers. We know of 2,636,335 live websites using Google Analytics Classic and an additional 20,570,728 sites that used Google Analytics Classic historically and 1,453,162 websites in the United States.
Get a list of 23,207,063 websites using Google Analytics Classic which includes location information, hosting data, contact details, 2,636,335 currently live websites and an additional 1,604,685 domains that redirect to sites in this list. 20,570,728 sites that used this technology previouslyand 1,453,162 websites in the United States currently using Google Analytics Classic.
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