CPM is actually a stat meant for advertisers, not creators. CPM stands for “cost per mille” (mille means “thousand” in Latin, so just think “cost per thousand”). CPM is the amount an advertiser pays to have its ads served against content 1,000 times. Each time an ad on a content is displayed, it’s called an impression.
But the relevant stat for Publishers is actually RPM (revenue per thousand)—the average amount you earn for every 1,000 monetized views your content generates. Fliiby typically refers to RPM as eCPM (effective CPM), so we’ll use “eCPM” from here on out.
In short: if your Fliiby earnings report shows an eCPM of $2.20 for a given period of time, then you earned $2.20 per thousand monetized views during that period, on average.