Content
Keyword Density
Keyword density is the ratio of the number of times a target keyword appears on a page to the total word count of that page, expressed as a percentage. It was historically used as a ranking signal, but Google's algorithms have evolved to prioritize semantic relevance and natural language over raw keyword frequency, making excessive optimization (keyword stuffing) a ranking risk.
Keyword density is analyzed using content optimization tools like Surfer SEO, Clearscope, and SEMrush's SEO Writing Assistant, which provide target ranges based on top-ranking competitor content. Screaming Frog can extract page content for manual keyword frequency analysis.
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Related Terms
Content
Keyword
The words or phrases that most accurately represent the content on a page are called keywords.
Content
Keyword Research
The process of discovering, analyzing, and prioritizing the words and phrases potential customers type into search engines and AI assistants — combining search volume, intent, and competitive difficulty into a content-strategy plan.
Content
Keyword Stuffing
The method of hiding keywords on the page in a way that is invisible to users is called keyword stuffing.
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LSI (Latent Semantic Indexing)
Refers to a technique for examining the relationship between content and keywords used which user searches.