What are Impressions? Aitarget Help Center September 23, 2017 08:55 Updated Follow One impression is one display to one person. The number of displays in the statistics is not unique. Related articles What is the difference between CPC, CTR, CPM, CPT? What is the difference between Clicks and Website Clicks? How can I launch a campaign to get more subscribers on Instagram? Comments 0 comments Please sign in to leave a comment.