Free SEO Tool

Keyword Density Checker

Measure how often keywords appear in your content. Track keyword frequency, analyze term distribution, and ensure balanced, natural keyword usage.

Understand keyword usage better

These guides explain how to fix the issues this tool uncovers.

Semantic Keywords ExplainedKeyword Clustering GuideFind Low-Competition Keywords

Related tools

Content Length Analyzer

Measure content depth and see if you're competitive

Readability Checker

Evaluate content readability and scannability

Heading Structure Checker

Verify heading hierarchy and structural organization

Scale keyword analysis site-wide?

Rank SEO monitors keyword usage, density patterns, and optimization gaps on every page throughout your site.

Book a quick callSee how it works

I'll show you exactly what's holding your SEO back and how to fix it.

Frequently Asked Questions

Keyword density is the percentage of times a keyword appears in a page's text compared to the total word count. For example, if a keyword appears 5 times in a 500-word article, the density is 1%.

Keyword density is not a direct ranking factor. Google uses semantic understanding rather than counting exact keyword matches. However, extremely low or high density can be a signal. If a keyword is absent, Google may not associate the page with that topic. If it is over-used, it may look like keyword stuffing.

There is no magic number. A density between 0.5% and 2.5% is generally considered natural. Focus on writing helpful content that covers the topic thoroughly. Keywords should appear naturally, not be forced in to hit a target percentage.

Yes. Google's algorithms detect unnatural keyword repetition and it can trigger quality filters. Content that reads unnaturally because of forced keyword insertions will perform worse than content written naturally for the reader.

No. A well-written page naturally includes variations, synonyms, and semantically related terms. Focus on covering the topic thoroughly rather than repeating a single exact phrase. Google understands meaning, not just exact word matches.