TikTok Hook Performance Analyzer

TikTok's algorithm makes its biggest decision about your video in the first 1-3 seconds. That's not an exaggeration -- the system measures how many people stop scrolling versus how many swipe past, and this initial retention signal determines whether your video gets pushed to a wider audience or dies in the small initial test batch.

The hook score this tool calculates is weighted: 40% first-second retention, 30% three-second retention, 30% completion rate. The weighting reflects how TikTok's own recommendation engine prioritizes these signals. A video that hooks people immediately but has poor completion will still outperform one with decent completion but a weak hook, because the weak hook never gets enough distribution to matter.

Here's what the numbers actually mean in practice. If your 1-second retention is below 60%, your hook isn't working -- full stop. The audience is scrolling past before they even process what your video is about. This usually means your opening frame is visually boring, your text overlay isn't compelling enough, or you're starting with context instead of payoff. Flip the script: lead with the result, then explain how you got there.

Three-second retention is where you confirm the promise of the hook. If you're losing 20%+ of viewers between seconds 1 and 3, your hook is creating expectations that the next few seconds don't deliver on. The fix is almost always tighter editing -- cut the dead space, add visual variety (angle change, zoom, overlay), and compress your setup.

Completion rate tells you about pacing and length. If people are watching your hook but dropping off before the end, your video is either too long for its content density or the middle section drags. The sweet spot for most creators is 15-30 seconds. Going longer only works if every 3-5 seconds delivers a new visual beat or piece of value.