Keyword Density Checker
Analyze your content and target keyword to instantly check density, usage count, and SEO safety.
Why Keyword Density Still Matters
While Google's algorithm has evolved far beyond exact-match keyword counting, TF-IDF (Term Frequency-Inverse Document Frequency) is still a foundational pillar of how search engines understand content.
If you write a 2,000-word article about "Email Marketing Software" but only use the phrase once, Google lacks the confidence to rank your page for that query.
The Danger of Keyword Stuffing
Conversely, if your density exceeds 2.5%, you trigger Google's spam filters. Keyword stuffing artificially inflates relevance at the expense of user experience. If your text reads unnaturally, users will bounce, signaling to Google that your page is low quality.
- The Sweet Spot: Aim for a primary keyword density of 0.5% to 1.5%.
- LSI Keywords: Use synonyms and Latent Semantic Indexing (LSI) terms to build topical authority without stuffing your main keyword.
- Readability Check: After optimizing your density, run your text through our Readability Score Checker.
Your Final Pre-Publish Step
Hitting the perfect keyword density is just one piece of the puzzle. Before you hit publish, run through our comprehensive SEO checklist.
External Resources
Learn more about keyword optimization and avoiding spam penalties.
Google: Keyword Stuffing Policies Wikipedia: Keyword Density