Free SEO tool
Keyword Density Checker
Paste your content and an optional target keyword to see word count, the top 10 terms by frequency with density percentages, and warnings when any term exceeds the 3–4 % over-optimisation threshold. Paste analysis runs entirely in your browser; logged-in users can also auto-fetch a URL (read server-side, read-only — see security).
Try an example:
Content inputs
How to read keyword density
- 1–3 % is healthy for most primary keywords — enough to signal topical relevance without appearing manipulative to Google's algorithms.
- 3–4 % is a warning zone — monitor and consider using semantic synonyms to reduce repetition while maintaining topical coverage.
- Above 4 % is over-optimisation (keyword stuffing) and may trigger a manual or algorithmic penalty. Dilute by varying terminology and restructuring sentences.
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