An impression refers to an advertisement or piece of content appearing in front of a user. For example, ad impressions refer to the number of times the advertisement was displayed to website visitors or searchers. Social media impressions refer to the number of times a post or piece of content was seen by social network users.
Why do you need to know about impressions?
Impressions are one metric used to measure the success of an advertising campaign or social media strategy. They allow marketers to understand how effective they are at getting their content in front of people who may then take action by clicking the ad or responding to the social post.