What is KEI? Definition and Formula

KEI is Keyword Effectiveness Index.

KEI compares the number of times a keyword or keyword phrase is searched with the number of competing web pages. This helps determine which keywords are most effective.

The higher the KEI, the more popular your keywords are, and the less competition they have. This means you have a better chance of getting to the top of the search engines.

KEI for a keyword phrase is formulated as ;

KEI = (Number of Monthly Keyword Searches)^2 / (Competing Pages)