Competitor who stands top all-time understands keyword density, high competitive keyword position can be attained only through proper keyword density and it can be approximately 2 - 8%.
Some list fast and we think how they do, they stuff keywords and dont meet keyword density rule, don’t mind them as a long term competitor, they can be dropped anytime, i have noticed many.
Try out this tool go rank which helps you to optimize websites with proper keyword density ratio
How keyword density been calculated?
Keyword density concerns with the ratio (%) of your keywords added within total number of indexed words within a webpage
Keyword density in % = Targeted Keywords / total number of indexed words * 100 (within a webpage)
Suppose, you have used keyword 10 times on your page and total number of words on your webpage is 200. So in this case 10 divided by 200 = .05
Keyword density is referred as percentage. So we need to multiply .05 by 100 to get percentage figure
Calculation would look like this:
.05 x 100 = 5%
So your page has a keyword density of 5%.
By this you can optimize your web page effectively "matching keyword density, meeting SE algorithm rule" which brings top results on the search engines.
Related Research & News: Yahoo Keyword Density Analysis Comparison to Google