Metrics FYI: Estimated Reach, Streaming Reactions and Graph API - About Facebook

We know how important it is to be open about meaningful updates we make to our metrics, so we’ve created this channel for regular information on metrics enhancements.

9 Dec 2016 ... This caused an underreporting of iPhone traffic from Facebook in comScore products between Sep 20 to Nov 30, 2016. iPad and Android traffic ...

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