What is keyword density
It's the percentage of times a word or term appears relative to the total word count of a text. It was more of an SEO metric in the past; today it's more useful as a warning sign against excessive repetition (keyword stuffing) than as a target to hit.
How to interpret it
There's no "ideal" number — Google doesn't use density as a direct ranking factor. Use this tool to spot unnatural repetition, not to chase a specific percentage.
Frequently asked questions
Does keyword density still matter for SEO?
Not the way it was used years ago. Google focuses on relevance and natural writing, not repetition counts.
Do very common words (like "the", "a", "of") show up in the list?
Yes, and that's normal — they naturally have high frequency in any text.