X (Twitter) Algorithm Glossary
How the For You feed ranks posts, what triggers algorithmic boosts, the signals to optimize, and the pitfalls that suppress reach.
10 terms in this category
Algorithmic boost
When a post earns disproportionate reach because the algorithm scored it as exceptionally engaging.
Community Note
A contextual fact-check note attached to a tweet by community-elected contributors.
Dwell time
How long a user spends looking at your tweet before scrolling past.
Engagement bait
Tactics that solicit engagement (likes, replies, reposts) without offering proportionate value — penalized by the algorithm.
Following feed
The chronological feed showing only tweets from accounts you follow, in reverse chronological order.
For You feed
The algorithmically ranked feed shown by default when you open X, blending posts from accounts you follow with recommendations.
Shadowban
Reduced distribution of a user's tweets without explicit notification, typically triggered by automated policy enforcement.
Time decay
How quickly a tweet's reach drops off after publishing, typically with a half-life under 30 minutes.
Top tweet
Your highest-performing tweet by impressions or engagement over a given time window.
X algorithm
The ranking system that decides which posts appear in the For You feed and in what order.
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