What is a good keyword density?

Most SEO practitioners recommend keeping primary keywords between 1–3% of total word count. Going higher risks appearing as keyword stuffing; going lower may mean the keyword isn't prominent enough.

Are stop words included in the density calculation?

No. The tool filters out common English stop words (the, is, in, etc.) so the density table reflects only semantically meaningful terms.

How many keywords should I track?

Focus on 1 primary keyword and 2–4 secondary or LSI keywords per page. More than that dilutes topical relevance signals.

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SEO Tools

Keyword Density Checker

Analyze keyword frequency and density in your content to optimize for on-page SEO.

Last updated July 1, 2026

How to use Keyword Density Checker

1Paste or type your content into the text area.
2The tool instantly calculates every word's frequency and density percentage.
3Identify over-optimized (keyword stuffing) or under-used keywords.
4Aim for your target keyword to appear at 1–3% density for natural, SEO-friendly copy.

Why use this tool

Processes entirely in the browser — your content is never uploaded.
Filters out common stop words so you see meaningful keyword data.
Shows both count and percentage, the two numbers SEOs actually need.

Use cases

Auditing existing blog posts

Paste in a published article to check whether your target keyword appears at the right density before resubmitting for re-indexing.

Preventing keyword stuffing penalties

Verify that no single keyword dominates your content at an unnatural rate that could trigger Google's over-optimization filters.