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Analyze keyword frequency and density in your text. Optimize your content for SEO by targeting 1-2.5% density for primary keywords.
Keyword density is the percentage of times a keyword or phrase appears in your text compared to the total word count. It's been a fundamental SEO metric since the early days of search engines, though its importance has evolved significantly.
While Google has become much more sophisticated at understanding content, keyword density remains a useful diagnostic tool. It helps you ensure you're covering your topic thoroughly without overdoing it. Modern SEO is about topical relevance, but having your target keywords appear naturally throughout your content still signals relevance to search engines.
Keyword stuffing—cramming keywords into content unnaturally—is a practice that can actually hurt your rankings. Search engines penalize content that reads like it was written for bots rather than humans. If your keyword density exceeds 4%, read your content aloud. Does it sound natural? If not, consider using synonyms, related terms, or simply removing some instances.
Modern SEO emphasizes LSI (Latent Semantic Indexing) keywords—terms related to your main keyword. For example, if you're writing about "coffee makers," related terms might include "brewing," "espresso," "grind," and "filter." This tool shows your top keywords, helping you identify whether you're using a natural variety of terms.