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 53,481 websites that are Google DoubleClick Conversion Customers. We know of 12,088 live websites using Google DoubleClick Conversion and an additional 41,393 sites that used Google DoubleClick Conversion historically and 6,963 websites in the United States.
Get a list of 53,481 websites using Google DoubleClick Conversion which includes location information, hosting data, contact details, 12,088 currently live websites and an additional 133,948 domains that redirect to sites in this list. 41,393 sites that used this technology previouslyand 6,963 websites in the United States currently using Google DoubleClick Conversion.
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