How do I vet a TikTok influencer before paying?

Work the checks in order because each one filters out a different failure mode. Engagement rate catches the dead-followers account; view consistency catches the one-hit-wonder; fake-engagement signals catch the bought-audience account; audience-country match catches the wrong-market creator (a 1M-follower US account is useless if you ship only to the UK); and posting cadence catches the creator who's quietly churning. A creator has to clear all five to be worth a deal — passing one or two isn't enough.

The single most important rule: never pay off a media kit alone. A media kit is a sales document — the creator picks the best month, the best post, and the flattering framing. Independent data on their actual recent videos is the only thing that can't be cherry-picked. If the engagement in the kit is double what their real recent posts show, that gap is your negotiating leverage, or your reason to walk.

The clearest tell is a mismatch between follower count and engagement. An account with 500k followers but only 0.3% engagement and a few hundred views per video has almost certainly bought followers. Look for sudden vertical jumps in follower history with no corresponding viral video, comment sections full of generic emoji or 'nice!' from accounts with no avatars, and a like-to-view ratio that's implausibly flat across every post.

Engagement rate alone screens most of this out: real audiences leave a (likes + comments + shares) ÷ views ratio in a believable band for the tier, and bought ones don't. KOLens flags engagement that's anomalously low for the follower count and computes the ratio from real videos, so a polished profile with a hollow audience surfaces before you commit budget.

Reach is only worth paying for if it lands in the country where you actually sell. A creator can have flawless engagement and still be the wrong buy if 70% of their audience is in a market you don't ship to. This is the check brands skip most often, and it's the one that quietly wastes the most budget — especially for cross-border e-commerce where the creator's home market and your target market may be completely different.

Pull an audience-country snapshot before signing, and weight your CPM by the share that's actually in-market. KOLens estimates audience country split from a creator's engaged viewers, so a $15 CPM that's really a $30 in-market CPM (because half the audience is offshore) is visible before you negotiate, not after the campaign underperforms.