關於「Facebook reach rate 2021」標籤，搜尋引擎有相關的訊息討論：

Social Media Reach: Statistics For 2024 - Socialinsiderwww.socialinsider.io › blog › social-media-reachFacebook Users, Stats, Data, Trends, and More - DataReportaldatareportal.com › essential-facebook-statsGlobal social media statistics research summary May 2024www.smartinsight