Completion Rate
The percentage of viewers who watch a clip all the way to the end (and often loop it).
Completion rate is the share of viewers who reach the end of the video. On looping feeds like TikTok and Reels, high completion — and rewatches — is a powerful positive signal, because it implies the clip was satisfying and tightly made.
It rewards clips engineered to be short and self-contained, with a clean payoff rather than a trailing outro.
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Retention (Watch Time)
How much of a video viewers actually watch — the metric short-form algorithms weight most heavily.
Read →Average View Duration
The mean amount of time viewers spend watching a video, in seconds or as a percentage of its length.
Read →Engagement Rate
The share of viewers who like, comment, share or save — signals that a clip resonated enough to act on.
Read →Virality Score
An AI prediction (often 0–100) of how likely a clip is to perform, based on hook, pacing and retention signals.
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