How keyword density is calculated
Keyword density = (times the phrase appears × words in the phrase) ÷ total words × 100. A two-word keyword used 5 times in a 500-word page has a density of 2%.
Is there an ideal keyword density?
No. Google has said for years that it does not use a target density, and modern ranking systems read meaning, not word counts. Density is still useful as a sanity check for two problems: a page that never states its main topic in plain words, and a page that repeats a phrase so often it reads as spam.
As a rough guide, if your focus keyword sits between 0.5% and 2%, stop worrying about it and work on coverage instead. Above 3% it usually reads unnaturally.
Use the phrase list to find gaps
The two and three-word view shows the concepts your page actually covers. Compare it with the pages that rank for your keyword: if they all repeat phrases you never mention, that is a topic gap, and filling it helps more than adjusting density.
Frequently asked questions
What is a good keyword density for SEO?
There is no target. Between 0.5% and 2% for your focus keyword usually reads naturally; above 3% often looks like stuffing.
Does Google use keyword density?
Not as a ranking target. Google reads meaning and topic coverage. Density is only useful to catch missing or overused keywords.
How are phrases counted?
Words are matched case-insensitively. Two and three-word phrases that start or end with common words like 'the' or 'and' are skipped so the list shows real concepts.
Is my text stored?
No. The analysis runs entirely in your browser.