Real User Monitoring gives insight into performance for actual users visiting the website.
https://www.pingdom.com/rum/
Analytics and Tracking · Application Performance
Get access to data on 295,176 websites Pingdom RUM Customers. We know of 20,447 live websites using Pingdom RUM and an additional 274,729 sites that used Pingdom RUM historically and 10,338 websites in the United States.
Get a list of 295,176 websites using Pingdom RUM which includes location information, hosting data, contact details, 20,447 currently live websites and an additional 161,222 domains that redirect to sites in this list. 274,729 sites that used this technology previouslyand 10,338 websites in the United States currently using Pingdom RUM.
Countries
Financial
Group
Region
These are sites that we think might use Pingdom RUM in the future because of their similarity to other sites that already do.