Keyword Density & Lexical Diversity Analyzer
Inspect single-word frequencies, 2-word bigrams, and 3-word trigrams across plain text or pasted HTML markup. Features positional prominence checks, stop-word filters, and Type-Token Ratio lexical diversity.
Descriptive Diagnostic Notice: Keyword density is a descriptive text statistic, not a search engine ranking factor. Modern search systems evaluate entity comprehension, topical completeness, and user intent rather than word frequency quotas. Use these tables to verify topic focus and spot unintended repetition.
108
88
0.81
Type-Token Ratio0.5 min
Balanced distribution: The keyword appears naturally without disproportionate concentration.
Top Single Words (1-Gram)
Top 2-Word Phrases (Bigrams)
Top 3-Word Phrases (Trigrams)
What is Keyword Density in Modern Search Optimization?
Keyword density measures the percentage frequency with which a target term appears relative to the total word count of a webpage: Density = (Keyword Occurrences / Total Words) × 100. In early search engines, keyword density was directly correlated with rankings. Today, Google utilizes advanced transformer models (BERT, MUM) and entity analysis to comprehend topical context, making arbitrary density targets obsolete.
Why Multi-Word Phrases (N-Grams) Reveal Content Quality
Single Words (Unigrams)
Highlights broad thematic vocabulary. High unigram variety signals rich, informative prose rather than thin or boilerplate text.
Two-Word Phrases (Bigrams)
Represents direct product or topic names (e.g., "email marketing", "running shoes") matching user search behavior.
Three-Word Phrases (Trigrams)
Captures conversational questions and long-tail query formulations (e.g., "best budget laptop", "how to crawl").
Common Keyword Density Mistakes to Avoid
- ×Keyword Stuffing: Forcing exact-match keywords into every heading or paragraph leads to algorithmic penalties under Google's Helpful Content System.
- ×Ignoring Natural Synonyms: Repeating the exact term rather than using latent semantic terms (LSI) limits the search queries your content can match.
- ×Over-Optimizing Anchor Text: Repeating the same high-density keyword in internal links creates unnatural linking patterns.
Frequently Asked Questions
Technical specifications, limitations, and SEO recommendations.
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