Keyword Density

Keyword Density can be explained as the frequency with which a keyword or a key-phrase is repeated within the text of a page. Here, the text includes "content, heading and title and anchor text."

Consider the following example

• Keyword Density wonderfully explained

• Keyword Density

Though both the words are almost same, the second word will rank well for the Keyword Density criteria as the density for this key phrase is 100 percent and for the previous word "keyword density wonderfully explained", it is 50 percent.

There are only two ways to increase the keyword density.

• Reduce the number of words in the article or

• Increase the frequency of usage of keywords.

I suggest you balance both the points above equally, as over doing anything will be triggered as spam.

Formula of keyword density :- 

Number of words in the key phrase of a text * frequency with which they are repeated together / total number of words

Tip: The Keyword density should not be more than 2% and less than 0.5%. If it exceeds 2%, then there is a possibility that most of the search engines consider your site as a spam and if it is below 0.5%, your content is considered as irrelevant. Remember, the ideal keyword density is between 0.5 percent and 2 percent.