Complex sentence: A Webhook, in web development, is a method of augmenting or altering the behavior of a web page, or web application, that uses custom callbacks that may be maintained, modified and managed by users and developers of the application.
Split into simpler sentences: A Webhook, in web development, is a method of augmenting or altering the behavior of a web page, or web application, with custom callbacks. These callbacks may be maintained, modified and managed by users and developers of the application.