What is keyword density?
Keyword density is the number of times a keyword appears divided by the total number of words, shown as a percentage. There is no ideal percentage — modern search engines understand topics and synonyms.
Use this checker to spot over-optimisation (the same phrase repeated unnaturally) and to see which phrases dominate your text.
Frequently asked questions
What keyword density is best for SEO?
There is no magic number. Write naturally; if a phrase sounds repetitive when read aloud, use variations.
Does it count multi-word keywords?
Yes — enter the full phrase and it counts exact, case-insensitive matches.