What is the perfect keyword density?

The short answer is - no.

There is no unique density of keywords, not guaranteed optimal percentage 1. However, each page in the number to classify, I know that you can include a keyword on a page and solve an anti-filter spam.

Most web optimization professionals agree that there are no ideal percentage of keywords in the text for a page as # 1 on Google. Search engines are not so easy to cheat, although the key to success in many areas is simply to make good things (or at least better than the competition).

I write for natural page copy, if possible, always focus on key concepts - never calculate the density to identify the best% - there are too many other things to work with. I studied it. If that seems normal, that's fine.

I intend to include related terms, long tail variants, and synonyms in the main content - at least once, as all pages require.

The optimal keyword density is a myth, even though it is a lot that claims the opposite.