Rollbar collects and analyzes errors on web and mobile apps.
https://rollbar.com
Widgets · Error Tracking
Get access to data on 195,644 websites that are Rollbar Customers. We know of 32,155 live websites using Rollbar and an additional 163,489 sites that used Rollbar historically and 13,731 websites in the United States.
Get a list of 195,644 websites using Rollbar which includes location information, hosting data, contact details, 32,155 currently live websites and an additional 165,122 domains that redirect to sites in this list. 163,489 sites that used this technology previouslyand 13,731 websites in the United States currently using Rollbar.
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These are sites that we think might use Rollbar in the future because of their similarity to other sites that already do.