What is the ideal keyword density?

Most SEO experts recommend 1-3% keyword density for primary keywords. However, focus on natural writing first. If your keyword appears 1-3 times per 100 words naturally, you're in a good range. Lower density (0.5-1%) is often sufficient for long-form content.

What is keyword stuffing and why is it bad?

Keyword stuffing is the practice of overloading content with keywords to manipulate rankings. Google penalizes this behavior. Signs include density above 3-4%, awkward repeated phrases, and keywords that don't fit naturally. It hurts user experience and can result in ranking penalties.

Should I include keyword variations?

Yes! Using synonyms, related terms, and natural variations (like 'running shoes' vs 'shoes for running') helps search engines understand your topic better. This is called semantic SEO and is more effective than repeating the exact same phrase.

Does keyword density still matter for SEO?

Keyword density is less important than it used to be, but still matters as a baseline check. Modern SEO focuses more on topical authority, user intent, and content quality. Use this tool to avoid extremes - ensure you're not missing keywords entirely or stuffing them unnaturally.

How do I increase keyword density naturally?

Add keywords to headings, the introduction, and conclusion. Use them in image alt text. Include the keyword in lists and bullet points. Create sections that naturally require the keyword. Always prioritize readability over hitting a specific density number.

What's the difference between keyword density and TF-IDF?

Keyword density is a simple percentage of keyword occurrences. TF-IDF (Term Frequency-Inverse Document Frequency) is more sophisticated - it considers how common a term is across many documents, helping identify truly relevant and distinguishing keywords for your content.

Free Keyword Density Checker

Name: Free Keyword Density Checker - Analyze Keyword Usage | Kensaku AI
Availability: InStock
Author: Kensaku AI

Analyze keyword density in your content instantly. Get detailed frequency analysis, identify over-optimization risks, and receive AI-powered suggestions to improve your keyword usage.

Aim for 1-3% keyword density for optimal SEO without over-optimization

Keyword Density Checker

Understanding Keyword Density

Keyword density measures how often your target keyword appears relative to the total word count. Getting it right is crucial for SEO success.

Keyword density is calculated as: (Keyword occurrences / Total words) x 100. While there's no magic number, most SEO experts recommend keeping primary keyword density between 1-3%.

Our analyzer checks:

Primary Keyword Density: Exact match frequency of your main keyword
Secondary Keywords: Density of related terms and variations
Keyword Distribution: How evenly keywords are spread throughout content
N-gram Analysis: 2-word and 3-word phrase frequency
Over-optimization Risk: Warning when density exceeds safe thresholds
LSI Opportunities: Related terms you might be missing

Modern SEO focuses on natural language and topical coverage rather than exact keyword repetition. Use this tool to ensure you're not under or over-optimizing.

Precise Density Calculation

Accurate percentage calculation for exact match and partial match keywords

Distribution Analysis

See how keywords are distributed across your content sections

Stuffing Detection

Get warned when keyword usage exceeds recommended thresholds

AI Optimization Tips

Receive suggestions to naturally increase or decrease keyword usage

How to Use the Checker

Optimize your keyword density in 4 simple steps

Paste Your Content

Copy and paste the content you want to analyze. For best results, include at least 300 words.

Enter Target Keyword

Type your primary keyword or keyphrase. Add secondary keywords if you want to check multiple terms.

Review Density Report

Check the density percentages, occurrence counts, and distribution analysis for each keyword.

Apply Recommendations

Use the AI suggestions to adjust keyword usage - add more if under-optimized or reduce if over-stuffed.

Checker Features

Complete keyword density analysis toolkit

Exact Match Density

Calculate density for exact keyword matches

Phrase Variations

Detect variations and partial matches of your keywords

N-gram Analysis

Analyze 2-word and 3-word phrase frequency

Stuffing Alerts

Warning indicators when density is too high

Competitor Benchmark

Understand typical density ranges by content type

Improvement Suggestions

AI-powered tips to optimize naturally

Frequently Asked Questions

Common questions about keyword density

Ready to Optimize Your Keyword Strategy?

Check your keyword density and ensure your content is optimized without over-stuffing.

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Free Keyword Density Checker - Analyze Keyword Usage | Kensaku AI