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 105,932 websites that are TrackJS Customers. We know of 64,980 live websites using TrackJS and an additional 40,952 sites that used TrackJS historically and 47,130 websites in the United States.
Get a list of 105,932 websites using TrackJS which includes location information, hosting data, contact details, 194,092 currently live websites which includes 129,112 domains that redirect to sites in the list. 40,952 sites that used this technology previously and 47,130 websites in the United States currently using TrackJS.