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 298,194 websites Pingdom RUM Customers. We know of 25,232 live websites using Pingdom RUM and an additional 272,962 sites that used Pingdom RUM historically and 15,385 websites in the United States.
Get a list of 298,194 websites using Pingdom RUM which includes location information, hosting data, contact details, 25,232 currently live websites and an additional 160,017 domains that redirect to sites in this list. 272,962 sites that used this technology previouslyand 15,385 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.