Intercom is an American software company that produces a messaging platform which allows businesses to communicate with prospective and existing customers within their app, on their website, through social media, or via email.
Salesforce is a cloud computing service software (SaaS) that specializes in customer relationship management (CRM).
30 sites run both Intercom and Salesforce. That is 8% of the sites using Intercom, the smaller of the two.
Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.