Keyword Density Checker

Analyze how often keywords appear on any webpage or in any block of text. See 1-word, 2-word, and 3-word phrase frequencies with density percentages — essential for on-page SEO.

How Keyword Density Is Calculated

Keyword density is the percentage of times a keyword appears in a piece of content relative to the total number of words. The formula is:

  Keyword Density = (Keyword Count ÷ Total Words) × 100

For example, if a page has 500 words and the word "SEO" appears 10 times, the keyword density is 2%.

What This Tool Analyses

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1-Word Keywords

Individual words sorted by frequency. Common stop words (the, is, and...) are automatically filtered out.

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2-Word Phrases

Bigrams — consecutive two-word combinations that reveal topical keyword phrases used on the page.

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3-Word Phrases

Trigrams — three-word phrases. Very useful for finding long-tail keyword patterns and key topics.

Keyword Density: What Is a Good Range?

There is no single "perfect" keyword density. However, here are generally accepted guidelines:

Density Range	Assessment	What It Means
Below 0.5%	⬇ Too Low	The keyword is barely present. Google may not associate the page with that topic.
0.5% – 1%	✅ Low (Good)	Keyword appears naturally. Good for supporting keywords and LSI terms.
1% – 2%	✅ Ideal	Most SEO experts consider 1–2% the sweet spot for a primary keyword.
2% – 3%	⚠ Getting High	Acceptable, but starting to feel repetitive. Review whether it reads naturally.
Above 3%	❌ Too High	Risk of keyword stuffing penalty. Google may lower rankings for over-optimised content.

Why Keyword Density Matters for SEO

Relevance signals: Keyword frequency helps Google understand what your page is about. Using a keyword naturally tells the algorithm that your content is relevant to that topic.
Avoid keyword stuffing: Overusing a keyword can trigger Google's spam filters and lower your rankings. A natural writing style is always better.
Topic coverage: Analysing 2-word and 3-word phrase density helps you see whether you are covering a topic broadly or narrowly.
Competitor analysis: Analyse a competitor's page to see which keywords they focus on, then compare with your own content.
Content auditing: Use this tool during a content audit to find pages that are under-optimised (low density) or over-optimised (too high density).

💡 Tip: Modern SEO is not just about density. Google's algorithms understand context. Focus on covering a topic thoroughly with natural language rather than repeating a keyword a set number of times. Use this tool as a guide, not a strict rule.

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