Keyword Density Checker - Analyze SEO Content Optimization

Keyword Density Checker with Filters

Analyze meaningful keyword usage with filters for 1-word, 2-word, and 3-word phrases

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Analysis Results

Your keyword density analysis will appear here after you analyze your content

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Smart Filtering

Filters out common words, numbers, and noise to focus on meaningful keywords

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Phrase Analysis

Analyze 1-word, 2-word, and 3-word phrases separately for better SEO insights

Quick Filtering

Easily switch between different phrase lengths with clickable filter buttons

Keyword Density: A Complete Guide for SEO Success

In the world of search engine optimization, keywords are the bridges that connect users to your content. But simply using keywords isn't enough; how often you use them—your keyword density—matters significantly. Our free Keyword Density Checker tool helps you analyze your content to ensure you are hitting the sweet spot between optimization and readability.

What is Keyword Density?

Keyword density refers to the percentage of times a specific keyword or phrase appears within a piece of content compared to the total word count. It is calculated using a simple formula:

For example, if your article has 100 words and you use the term "SEO" 5 times, your keyword density is 5%.

Why Does Keyword Density Matter?

While Google's algorithms have evolved beyond simple keyword matching (thanks to updates like Hummingbird and BERT), density still plays a role in:

What is the Optimal Keyword Density?

There is no "magic number" for keyword density. However, most SEO experts agree that a density between 1% and 3% is ideal for primary keywords.

Our tool helps you visualize this balance instantly, flagging potential issues before you publish.

How to Use This Tool

Using our Keyword Density Checker is straightforward:

  1. Paste Your Text: Copy your article, blog post, or web page content into the text box.
  2. Select Mode: Choose "Analyze All Keywords" to see a full breakdown of every phrase, or enter a "Specific Keyword" to check a single term.
  3. Analyze: Click the button to generate a detailed report. You can then filter results by 1-word, 2-word, or 3-word phrases to find long-tail opportunities.

Advanced Feature: N-Gram Analysis

Our tool goes beyond simple word counting. It performs N-Gram analysis, identifying meaningful 2-word (bigrams) and 3-word (trigrams) phrases. This is crucial for optimizing for long-tail keywords (e.g., "best SEO tools" instead of just "tools"), which often convert better and have less competition.