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Keyword Density Analyzer

Discover the top keywords on any page with frequency counts, density percentages, and readability scores.

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Why Keyword Density Matters

Keyword density measures how often a term appears relative to total word count. It's one of the oldest SEO metrics and still matters — not as a ranking factor to optimize, but as a diagnostic tool. If your target keyword appears at 0.1%, you're probably not signaling relevance. If it's at 8%, you're likely keyword stuffing. Either extreme can hurt your rankings.

What Is Keyword Density?

Keyword density is calculated as: (keyword count / total words) × 100. For example, if the word 'analytics' appears 5 times in a 500-word article, the density is 1.0%. This tool extracts all significant words (excluding common stopwords like 'the', 'and', 'is') and ranks them by frequency.

What's the Ideal Density?

There's no magic number, but most SEO professionals recommend keeping primary keyword density between 0.5% and 2.5%. Above 3-4% starts looking unnatural to both readers and search engines. Modern Google algorithms focus on topical relevance and natural language rather than exact keyword counts — but density remains a useful sanity check.

Tips for Healthy Keyword Usage

  • Write naturally first, then check density. Never force keywords into sentences where they don't fit.
  • Use synonyms and related terms. Google understands semantic relationships — you don't need to repeat the exact same phrase.
  • Place keywords in high-impact positions: page title, H1, first paragraph, and subheadings.
  • Check competitor pages for the same query. If top-ranking pages use a keyword at 1-2% density, that's your benchmark.

Frequently Asked Questions

What is a good keyword density?
Between 0.5% and 2.5% for your primary keyword. This range signals relevance without triggering over-optimization filters. Secondary keywords can appear at lower densities (0.2-1%).
Can keyword density be too low?
Yes. If your target keyword appears only once or twice in a 2,000-word article (under 0.1%), search engines may not associate the page with that topic. You don't need to stuff keywords, but they should appear naturally throughout the content.
Does Google still use keyword density?
Not as a direct ranking factor. Google's algorithms have evolved far beyond counting keywords — they analyze semantic meaning, user intent, and entity relationships. However, keyword density remains a useful diagnostic tool for spotting under-optimization or keyword stuffing.
What is keyword stuffing?
Keyword stuffing is the practice of unnaturally repeating a keyword to manipulate rankings. Google explicitly penalizes this. Signs include: density above 4%, keywords forced into unrelated sections, and hidden text. If it reads awkwardly to a human, it's probably stuffing.
What about the readability score?
The readability score (Flesch Reading Ease) measures how easy your content is to read. Scores above 60 are considered easily readable by a general audience. Lower scores indicate more complex text — fine for academic or technical content, but a red flag for consumer-facing pages.

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