TikTok says its recommendation system ranks videos using multiple factors, including user interactions, video information, and some device and account settings. The platform also identifies watch time as a signal that helps it understand viewer interest.

What does the system learn from?
Completion, rewatching, likes, shares, comments, follows, and “not interested” feedback all help shape future recommendations. Captions, sounds, and hashtags describe the video, while language or device settings can support distribution without necessarily outweighing actual behaviour.
What should a brand do?
- Reach the central idea quickly.
- Make the subject clear through picture, speech, and on-screen text.
- Build each video around one finishable idea.
- Use keywords and hashtags to describe the content accurately.
- Review retention and exit points rather than views alone.

Do not confuse reach with commercial impact
A video may travel widely because it is entertaining while producing few meaningful visits or enquiries. Connect commercial content to a profile visit, website action, or message, then review lead quality rather than volume alone.
Sources: TikTok — How TikTok Recommends Videos, TikTok — Five Tips for Creators, TikTok — Why a Video Is Recommended




