Learning Center

Short-form video runs on mechanics most people never see: a recommendation system, a handful of signals that actually matter, and a set of metrics that are easy to misread. These are plain explanations of how it all works.

Learn about the TikTok algorithm

The TikTok algorithm is the recommendation system that decides which videos appear on each For You Page. It works by showing every upload to a small test audience and expanding its reach only if that audience keeps watching.

Go to TikTok algorithm

More topics

  • Short-form video metricsWhat each metric measures, which ones predict reach, and how to compare them honestly across platforms.
  • Social data APIsHow social platform data is accessed programmatically: official APIs, their limits, and what sits outside them.
  • Social commerceHow selling works inside short-form feeds: TikTok Shop, affiliate mechanics, and the metrics that govern them.
  • Content strategyThe repeatable parts of short-form: hooks, formats, series structure, retention editing and cadence.
  • Trends and trend detectionWhat a trend is mechanically, how one spreads, and how to spot it while it still has room to run.
  • Platform mechanicsHow TikTok, Instagram Reels and YouTube Shorts differ in specs, limits, surfaces and behaviour.
  • The creator economyHow money moves through short-form: payouts, brand deals, UGC, clipping and agency models.

Look up a term

The glossary defines 11 TikTok terms, features and slang words in a paragraph each. Use it when you want the definition rather than the explanation.

Browse the glossary