Impressions represent the total number of times a piece of content is displayed, including repeated views from the same user.
For example, one person who sees a post three times may generate one unit of reach but three impressions.
Comparing impressions with reach can help brands understand how frequently the audience encountered the campaign.
A high number of impressions may improve message recall, but excessive frequency can also lead to content fatigue.
Impressions indicate content exposure rather than attention, engagement or commercial results.