Advanced Keyword Density Checker
Complete frontend SEO analysis tool for content optimization. ⚠️ This tool provides content-based estimations only
Your Content
Analysis Options
Content Preview (Keywords highlighted)
Your content will appear here with highlighted keywords...
Competitor Comparison
SEO Score
Based on:
- Keyword placement
- Heading usage
- Content length
- Density optimization
Top Keywords
Analysis will show top 10 keywords here...
Heading Analysis
Heading analysis will appear here...
Related Terms
Related terms will appear here...
Keyword Placement
Keyword placement analysis will appear here...
Optimization Check
No warnings detected yet...
Advanced Keyword Density Checker – How To Use Guide
📋 Overview
This is a complete frontend SEO analysis tool that helps you optimize your content for better search engine rankings. All processing happens in your browser – no data is transmitted or stored anywhere, ensuring complete privacy.
🚀 Quick Start Guide
Step 1: Enter Your Content
Paste or type your article/blog content in the main text area
Watch the real-time word and character count update automatically
The tool will start analyzing as you type (automatic after a brief pause)
Step 2: Set Your Keywords
Primary Keyword: Enter your main target keyword (e.g., “content writing tips”)
Secondary Keywords: Add related keywords, separated by commas (e.g., “SEO optimization, blog writing”)
Step 3: Configure Options
✅ Ignore stop words: Recommended for more accurate keyword analysis
✅ Highlight keywords: See your keywords highlighted in the content preview
Step 4: Analyze Content
Click the “Analyze Content” button (blue button with chart icon)
Or wait for automatic analysis while you type
📊 Understanding The Results
🔹 SEO Score (0-100)
70-100 (Green): Excellent optimization
40-69 (Yellow): Good, needs some improvements
0-39 (Red): Needs significant optimization
Factors considered:
Keyword placement and density
Heading structure
Content length
Optimization warnings
🔹 Top Keywords
Automatically detects the most frequent keywords from your content
Shows frequency and density percentage
Excludes common stop words (the, and, a, etc.)
🔹 Heading Analysis
H1 Check: Verifies if primary keyword is in main heading
H2 Count: Shows number of sub-headings (recommended: 2-5)
H3 Count: Shows number of sub-sub-headings
Keyword in Headings: Shows which keywords appear in which headings
🔹 Keyword Placement
First 100 Words: Checks if keywords appear near the beginning
Last Paragraph: Checks if keywords appear near the end
Good placement helps with SEO ranking
🔹 Optimization Warnings
High Density: Keywords used too frequently (over-optimization risk)
Low Density: Keywords not used enough
Clustering: Keywords appearing too close together
Content Length: Too short or too long content
🔹 Related Terms
Automatically suggests related terms based on your content
Useful for expanding your content naturally
🔄 Advanced Features
Competitor Comparison (Optional)
Click “Competitor Content Comparison” to expand the section
Paste competitor’s content in the text area
Tool will compare keyword densities and give you insights
Green arrow = you’re doing better, Red arrow = competitor is doing better
Detailed Analysis
Click “Detailed Keyword Analysis” to expand
See comprehensive table with all keyword statistics
Includes count, density, status, and visual distribution bars
💾 Exporting Results
Three Export Options:
Text (Green button): Downloads a .txt file with summary report
PDF (Red button): Downloads a professional PDF report with tables
CSV (Purple button): Downloads spreadsheet-friendly CSV data
Note: You must analyze content before exporting
🎯 Best Practices
Optimal Keyword Density
Primary Keyword: 0.8% – 2.5%
Secondary Keywords: 0.5% – 1.5%
Total: Keep natural, avoid over-optimization
Content Structure
Word Count: 500-2000 words ideal for most content
Headings: Include 1 H1, 2-5 H2s, and H3s as needed
Keyword Placement: Include in first 100 words and last paragraph
Writing Tips
Use keywords naturally in context
Include keywords in headings where relevant
Avoid keyword stuffing (clustering)
Use related terms to make content comprehensive
⚠️ Important Notes
What This Tool Does
Analyzes keyword density and placement
Checks heading structure
Provides SEO optimization suggestions
Compares with competitor content (optional)
All processing happens locally in your browser
What This Tool Doesn’t Do
Not a ranking guarantee predictor
Doesn’t analyze backlinks or domain authority
Doesn’t consider user experience metrics
Doesn’t replace professional SEO advice
Privacy & Security
✅ No data transmission or storage
✅ All processing happens in your browser
✅ No account registration required
✅ Works completely offline after loading
🛠️ Troubleshooting
Common Issues & Solutions:
“Please enter some content to analyze”
Make sure you’ve entered content in the main text area
Export buttons not working
First click “Analyze Content” button
Wait for analysis to complete
Then click export buttons
No keywords detected
Check if “Ignore stop words” is checked
Make sure content has meaningful words
Try analyzing longer content
Competitor comparison not showing
Make sure you’ve entered competitor content
Click the expand arrow next to “Competitor Content Comparison”
💡 Pro Tips
Use competitor comparison to identify gaps in your strategy
Pay attention to warnings – they highlight optimization opportunities
Regular checks – analyze content during writing and before publishing
Experiment with different keyword placements to see score changes
Combine with other SEO tools for comprehensive optimization
🎓 Learning Resources
What is Keyword Density?
The percentage of times a keyword appears in your content relative to total words. Important for SEO but should look natural.
Why Headings Matter?
Search engines use headings to understand content structure. Include keywords naturally in headings.
Competitor Analysis Value
Understanding competitor keyword usage helps you identify opportunities and create better content.
Remember: This tool provides data-driven insights, but the best content balances SEO optimization with natural, valuable writing for readers. Use the metrics as guidelines, not strict rules.