Facebook provides analytics for its Pages called "insights". These are important to Page owners monitoring their Page performance in terms of engagement and growth. 

Recently, it was identified that the data used to produce these reports is not current. In fact, the data can be up to four days old. This is less than ideal for admins that want to work with the most recent (and hopefully accurate) data so that Pages can be tuned to increase the size of their communities and encourage more engagement.

If you are a Page admin, Facebook currently displays a message acknowledging this delay and their attempts to improve the currency of the insights data:

"During the past few weeks you may have noticed delays to your insights data. We're sorry for the inconvenience this may have caused and want you to know that we're working to resolve these issues and make sure they don't happen in the future."

Stay tuned for progress on this issue. In the meantime, examine the insights for your Pages (if you haven't already done so).

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