Influencer fraud — bought followers, fake comments, paid engagement — costs brands an estimated billion euros plus per year. And it's relatively quick to spot. Six red flags brands can run through in five minutes, plus five tips creators can use to prove they're legit.
1. Engagement rate — first check
Engagement = (likes + comments) / followers × 100. 2026 Instagram averages:
- Nano (under 10K): 4–8%
- Micro (10–50K): 2–5%
- Mid (50–250K): 1–3%
- Macro (250K+): 0.5–1.5%
If an account has 100 000 followers and posts get 200 likes (0.2% engagement), something's off. Either bought followers or dead audience (people who followed years ago and never engage).
Acceptable exceptions: Very specific niches (B2B, finance) may have lower engagement because the audience is professional. But not under 0.5%.
2. Comment quality
Open the last five posts and read the comments. What should be there:
- Real sentences: "I'll definitely order this" / "where did you buy it?" / "great idea"
- Specifics related to the post
What shouldn't:
- Just emojis
- "Nice!" / "Great!" / "Wow!" repeated
- Accounts that comment with empty profile or no photo
- Language that doesn't fit the audience (English comments under a Czech post)
3. Follower growth over time
Use a free tool (Modash, HypeAuditor, Social Blade) and look at the history. What you watch for:
- Sudden jumps — +20 000 followers in one day with no event? Bought.
- Smooth growth — slow and stable = good sign
- Growth after a viral video — really sudden but verifiable (find the post that exploded)
4. Audience geographic distribution
A creator from Czechia should have a Czech audience. If a Czech profile has 70% of followers from India, Bangladesh and Brazil, that's a classic bought-follower signal (those are the cheapest farms).
Instagram and TikTok give this data in Insights — you can ask the creator for a screenshot.
5. Following / followers ratio
- Account follows 50, has 100 000 followers = OK (typical influencer)
- Follows 8 000, has 10 000 = suspicious (could be follow-for-follow)
- Follows 50 000, has 50 000 = red flag (bot exchange)
Not a deal-breaker on its own, but a flag.
6. Account age vs follower count
Account 6 months old with 200 000 followers = likely bought (or viral, which can be verified).
Account 4 years old with 50 000 = organic growth, much healthier.
For creators: how to prove you're real
When a brand hesitates, don't take it personally — make their job easier:
1. Send an Insights screenshot — Instagram audience demographics (age, countries, cities). Real audience shows in 30 seconds.
2. Be open about engagement rate — if you have 3%, just say "I have 3% engagement, 8 000 likes per post" instead of letting them dig.
3. Show historical growth — Social Blade screenshot or similar. Slow steady growth signals quality.
4. Reference from past campaigns — contacts of 1–2 brands who'll give a reference.
5. Have one "outcome" case study — slidedeck (or just a few images) with what you did + how it went (clicks, sales). Even small project being documented says a lot.
For brands: 5-minute pre-deal check
1. Open the last 10 posts, check engagement rate
2. Read 20 most recent comments — quality?
3. Social Blade history — smooth growth?
4. Ask creator for Insights screenshot — geography + age
5. Google their name + your product type — past campaigns?
If all green, go for it. If anything's off, look twice.