Wix Bookings makes it possible for customers to schedule appointments and classes right on the website.
https://www.wix.com/app-market/wix-bookings/overview
Widgets · Bookings
Get access to data on 1,485,897 websites that are Wix Bookings Customers. We know of 1,024,869 live websites using Wix Bookings and an additional 461,028 sites that used Wix Bookings historically and 753,882 websites in the United States.
Get a list of 1,485,897 websites using Wix Bookings which includes location information, hosting data, contact details, 1,024,869 currently live websites and an additional 108,025 domains that redirect to sites in this list. 461,028 sites that used this technology previously and 753,882 websites in the United States currently using Wix Bookings.