Definition
Keyword stuffing is the practice of overloading a piece of content — a video title, description, blog post, or metadata — with an excessive number of keywords in an attempt to manipulate search rankings. Search engines like Google and YouTube's algorithm actively penalize keyword stuffing because it degrades content quality and user experience. Modern SEO best practice calls for natural, contextually relevant keyword usage rather than repetitive insertion. Keyword stuffing is considered a black-hat SEO tactic and can result in ranking suppression or de-indexing.