Our fake follower checker uses a heuristic-based scoring algorithm that analyzes publicly available engagement data from an account's recent posts. We evaluate four key signals: (1) Engagement rate relative to follower count — each follower tier (nano, micro, mid, macro, mega) has different expected ranges, and abnormally low engagement suggests inflated follower counts. You can also check engagement rates directly with our
Instagram Engagement Rate Calculator. (2) Likes-to-comments ratio — fake followers and bots tend to like posts but rarely leave meaningful comments, so extremely high ratios indicate bot activity. (3) Engagement consistency — real audiences produce naturally variable engagement, while bot-driven engagement is often suspiciously uniform. (4) Zero-engagement posts — a high percentage of posts with no engagement at all can indicate that followers are inactive or fake. These signals are weighted and combined to produce a 0-100 audience quality score. For a deeper look, try our
Instagram Account Comparison to compare accounts side by side.