JavaScript error detection app for detecting JS errors on customer visits.
http://trackjs.com
JavaScript Libraries and Functions · Error Tracking
Get access to data on 253,889 websites that are TrackJS Customers. We know of 71,300 live websites using TrackJS and an additional 182,589 sites that used TrackJS historically and 52,144 websites in the United States.
Get a list of 253,889 websites using TrackJS which includes location information, hosting data, contact details, 71,300 currently live websites and an additional 25,367 domains that redirect to sites in this list. 182,589 sites that used this technology previously and 52,144 websites in the United States currently using TrackJS.