Keyword Effectiveness Index

Keyword effectiveness index, or just KEI for now on, is a measure of the effectiveness of a keyword in terms of search frequency and competition for the keyword or phrase.

Traffic to your website Webinar.

According to Wordtracker, “the KEI compares the Count result (number of times a keyword has appeared in our data) with the number of competing web pages to pinpoint exactly which keywords are most effective for your campaign.”

Their formula, which they compute for you in the Wordtracker program, works this way: “Let P denote the popularity of the keyword and C the competitiveness.

The formula that you can use is KEI = (P^2/C), i.e. KEI is the square of the popularity of the keyword and divided by its competitiveness. According to the Wordtracker site, any KEI of 40 or higher is worth targeting. However, KEI is most effective in making the initial selections for an SEO campaign. Over time
you want to target any popular search term that’s highly relevant.

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