Data processing method, data processing device, and data processing system

The invention discloses a data processing method, a data processing device, and a data processing system, which belong to the data processing field. The data processing method comprises steps that anapplication sharing event and an application back flow event reported by a third party analysis SDK are received, and a back flow conversion rate of a webpage on a social sharing channel is acquired according to the application sharing event and the application back flow event; the channel identification of the social sharing channel is set in the URL of the webpage, and the third party analysis SDK in the webpage is integrated, and the application sharing event during the webpage sharing can be reported to the server, and when the back flow access of the webpage occurs, the channel identification can be acquired from the URL of the webpage, and therefore the application back flow event provided with the channel identification can be reported to the server, and the server can be used to monitor the application bac