Domain Verification provides a way for you to claim ownership of your domain in Facebook Business Manager.
https://developers.facebook.com/docs/sharing/domain-verification/
Frameworks
Get access to data on 2,532,922 websites that are Facebook Domain Verification Customers. We know of 1,677,694 live websites using Facebook Domain Verification and an additional 855,228 sites that used Facebook Domain Verification historically and 785,970 websites in the United States.
Get a list of 2,532,922 websites using Facebook Domain Verification which includes location information, hosting data, contact details, 1,677,694 currently live websites and an additional 2,789,133 domains that redirect to sites in this list. 855,228 sites that used this technology previously and 785,970 websites in the United States currently using Facebook Domain Verification.
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