Keyword Density Checker
Analyze keyword frequency and density across your content to optimize for search engines.
What Is Keyword Density?
Keyword density is the percentage of times a target keyword appears in a piece of content relative to the total word count. It's a fundamental on-page SEO metric that helps search engines understand what a page is about. Our free keyword density checker analyzes your content for single words (1-grams), two-word phrases (2-grams), and three-word phrases (3-grams) — giving you a complete picture of your content's topical focus.
How to Use This Tool
Paste your article, blog post, or page content into the text area above and click Analyze Density. The tool instantly calculates word frequency, character count, and sentence count. Use the stop-word filter to exclude common English words (the, and, is, etc.) and focus on meaningful keywords. Review the results across all three n-gram tabs to ensure your target phrases appear at a natural density — typically between 1% and 3%.
Why Keyword Density Matters for SEO
While keyword stuffing is penalized by Google, having too few mentions of your target keyword can mean search engines fail to associate your content with relevant queries. This tool helps you find the balance: enough keyword presence to signal relevance without over-optimization. Use it alongside our Meta Tag Analyzer to ensure your on-page elements and content are aligned.
Frequently Asked Questions
What is a good keyword density percentage?
A natural keyword density is typically between 1% and 3% for primary keywords. Anything above 3% may appear unnatural to search engines and risk over-optimization penalties. Focus on writing naturally while ensuring your target terms appear in key positions like headings, the introduction, and the conclusion.
Does this tool work with any language?
The density analysis works with any text that uses the Latin alphabet. The stop-word filter is optimized for English, so for other languages you may want to set it to "No — include all words" and manually review the results.
What are n-grams and why do they matter?
N-grams are sequences of consecutive words. A 1-gram is a single word, a 2-gram is a two-word phrase, and a 3-gram is a three-word phrase. Analyzing n-grams reveals the most common phrases in your content, which is crucial for long-tail keyword optimization and understanding topical relevance beyond single keywords.
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