Facebook customer chat SDK.
https://developers.facebook.com/docs/messenger-platform/discovery/customer-chat-plugin/sdk
Widgets · Live Chat
Get access to data on 464,896 websites that are Facebook Customer Chat SDK Customers. We know of 312,019 live websites using Facebook Customer Chat SDK and an additional 152,877 sites that used Facebook Customer Chat SDK historically and 168,504 websites in the United States.
Get a list of 464,896 websites using Facebook Customer Chat SDK which includes location information, hosting data, contact details, 312,019 currently live websites and an additional 210,186 domains that redirect to sites in this list. 152,877 sites that used this technology previously and 168,504 websites in the United States currently using Facebook Customer Chat SDK.
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