Facebook customer chat SDK.
https://developers.facebook.com/docs/messenger-platform/discovery/customer-chat-plugin/sdk
Widgets · Live Chat
Get access to data on 503,806 websites Facebook Customer Chat SDK Customers. We know of 224,724 live websites using Facebook Customer Chat SDK and an additional 279,082 sites that used Facebook Customer Chat SDK historically and 102,407 websites in the United States.
Get a list of 503,806 websites using Facebook Customer Chat SDK which includes location information, hosting data, contact details, 224,724 currently live websites and an additional 149,194 domains that redirect to sites in this list. 279,082 sites that used this technology previouslyand 102,407 websites in the United States currently using Facebook Customer Chat SDK.
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