MasterBase tries to help you improve email marketing campaign performance, boost deliverability and lower costs.
https://www.en.masterbase.com/
Email Hosting Providers · Marketing Platform
Get access to data on 4,368 websites that are MasterBase Customers. We know of 2,172 live websites using MasterBase and an additional 2,196 sites that used MasterBase historically and 387 websites in the United States.
Get a list of 4,368 websites using MasterBase which includes location information, hosting data, contact details, 2,172 currently live websites and an additional 2,204 domains that redirect to sites in this list. 2,196 sites that used this technology previouslyand 387 websites in the United States currently using MasterBase.
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These are sites that we think might use MasterBase in the future because of their similarity to other sites that already do.