What does "low-activity" mean?

You may see a line in your Page report that says "low-activity."  This refers to "low affiliate activity" - this is the page impressions of all pages that haven't seen any affiliated clicks in the recent past.

"Low Activity" refers to pages on your site where we are not seeing clicks on links that we can affiliate.  We aggregate all these page impressions into one line because our data would be 40x larger if we showed all the page impressions by page, so we have prioritized the data for pages that have affiliate activity (clicks).