Instagram Engagement Rate & Fake Follower Checker
Free Instagram engagement rate calculator and fake follower checker. Enter a username to get the engagement rate of the latest posts, how it compares with accounts of the same size, and a quality check of a sample of the newest followers.
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Frequently asked questions
How is the Instagram engagement rate calculated?
For each of the 12 latest posts, likes plus comments are divided by the follower count. The engagement rate is the average of those per-post rates; the median is shown too, so one viral post does not distort the picture. Posts with hidden likes are left out.
What is a good engagement rate on Instagram?
It depends on account size, because engagement falls as followers grow. As a rule of thumb: about 2.5–6% under 10K followers, 1.5–4% from 10K to 50K, 1–2.5% from 50K to 500K, 0.8–2% from 500K to 1M, 0.5–1.5% from 1M to 10M, and 0.2–1% above 10M.
How do you check if an Instagram account has fake followers?
The checker looks at up to 50 of the newest followers and flags accounts with no profile photo, no name and auto-generated handles such as name48213. It also compares the engagement rate with accounts of the same size: bought followers do not like or comment, so a large account with very low engagement is a warning sign.
How accurate is the fake follower estimate?
It is an estimate from a sample, not a count. The newest followers of any account include more brand-new and inactive accounts than older ones, and some real people never add a photo. Use the score to decide where to look closer, not as proof.
Is this Instagram checker free?
Yes. It needs a free SandBase account and no Instagram login. A new check uses three SandBase Instagram API calls, which the daily free API quota on your SandBase account covers. A username someone checked in the last 24 hours is served from cache and uses none.
Does it work for private Instagram accounts?
No. Posts and followers of private accounts are not public, so only public accounts can be checked.
Why are results cached for 24 hours?
Engagement and follower samples change slowly, and every new check calls three paid APIs. Caching for 24 hours keeps the tool free and fast; the report shows when it was checked.
Can I get this data from an API?
Yes. The checker is built on SandBase APIs: POST /v1/api/instagram/v3/user-profile, /user-posts and /user-followers, each with a username. Developers can call them directly to build their own scoring.