What metric is most useful for tracking follower interactions, such as likes, shares, and comments?

The engagement rate is the most useful metric for tracking follower interactions, such as likes, shares, and comments, because it specifically measures how actively your audience is interacting with your content. This metric provides insights into the quality of followers' relationships with your posts by showing the percentage of followers who are engaging with the content relative to the total number of followers or impressions. By focusing on likes, shares, and comments, the engagement rate indicates how effectively your content resonates with your audience.

Other metrics like reach, click-through rate, and impressions serve different purposes. Reach indicates the total number of unique users who have seen your content but does not measure interaction. Click-through rate focuses on the number of clicks on a link in relation to the total number of impressions, which is specific to driving traffic rather than overall engagement. Impressions count how many times your content is displayed, regardless of interaction, providing no insight into whether users found the content engaging. Thus, engagement rate is the most relevant metric for analyzing follower interactions.