Free Keyword Density Checker

Analyze the keyword density of any web page or text. Spot over-optimization and fine-tune your content to help improve rankings. Powered by Semrush data.

No login requiredInstant results3 free daily checks

Instantly Check Your Keyword Density

Drop in a URL or paste your text. The density breakdown shows every keyword’s frequency, count, and percentage — so you can see at a glance whether your page emphasizes the right terms.

Get density, word counts, and frequency data
See which terms appear most on your page
Start using it with zero SEO experience
Check from any device, desktop or mobile

Spot Over-Optimization Before Google Does

Keyword stuffing tanks rankings. This report flags any term that crosses the line so you can fix it before Google notices.

Find terms that exceed safe thresholds
See when the same phrases pile up
Check exact percentages for every term
Fix stuffing with data, not guesswork

Analyze 1-Word, 2-Word, and 3-Word Phrases

Single keywords tell part of the story. Multi-word phrases reveal what your content is really about.

View 1-word, 2-word, and 3-word density
Spot the phrases your page leans on most
Compare frequency across all three levels
Flag patterns single-word counts miss

Analyze Any URL or Paste Your Own Text

Paste a URL and the tool pulls content from the live page. Or paste your draft text to check density before you publish.

Pull density data from any live URL
Paste drafts to check before publishing
Exclude stop words or add custom filters
Focus on keywords that affect rankings

Go Deeper with Semrush One

This tool helps you check one page for keyword usage. Try Semrush One Free for 14 Days to research better keyword targets, track rankings, and monitor how your brand appears in AI search.