A video distribution server according to one embodiment of the present disclosure promotes entry of a new viewer into a live video distribution (live streaming) service. The server provides a user with the live video distribution service for distributing and viewing a video in real time via a user terminal. The server generates a message based on input information by a viewer of the video being distributed, and posts the message on an SNS by a distributor of the video, and thus allows a user of the SNS to know a situation and an atmosphere of live distribution in the video distribution service.