DoubleClick conversion tracking from Google Global Site Tag.
https://support.google.com/adwords/answer/6095821#get_tag
Analytics and Tracking · Advertiser Tracking · Conversion Tracking
Get access to data on 54,399 websites that are Google DoubleClick Conversion Customers. We know of 12,754 live websites using Google DoubleClick Conversion and an additional 41,645 sites that used Google DoubleClick Conversion historically and 7,289 websites in the United States.
Get a list of 54,399 websites using Google DoubleClick Conversion which includes location information, hosting data, contact details, 12,754 currently live websites and an additional 126,300 domains that redirect to sites in this list. 41,645 sites that used this technology previouslyand 7,289 websites in the United States currently using Google DoubleClick Conversion.
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