"Daily Active Users (DAUs). We define a daily active user as a registered and logged-in Facebook user who visited Facebook through our website or a mobile devic

"Daily Active Users (DAUs). We define a daily active user as a registered and logged-in Facebook user who visited Facebook through our website or a mobile device, or used our Messenger application (and is also a registered Facebook user), on a given day. We view DAUs, and DAUs as a percentage of MAUs, as measures of user engagement on Facebook." So, no.