What is keyword effectiveness index in SEO?

Keyword Effectiveness Index (KEI) is a metric used to determine the effectiveness of a particular keyword or phrase in terms of driving search traffic to a website. KEI is calculated by dividing the number of searches for a keyword by the number of websites that rank for that keyword. A higher KEI score indicates that a keyword is more effective at driving search traffic to a website, as there are fewer websites competing for that keyword.

The idea behind KEI is that keywords with high search volume but low competition are more likely to drive traffic to a website than keywords with low search volume and high competition. By identifying keywords with a high KEI, SEOs can prioritize them in their optimization efforts and have a better chance of ranking well in search engine results.

KEI calculation formula is: KEI = (Searches/Results)^2. The higher the KEI value, the more effective the keyword is considered to be.

It's important to note that KEI is not a metric that is used by search engines to rank pages, it's a metric that is used by SEOs to determine the potential effectiveness of a keyword. While KEI can be a useful tool, it is important to consider other factors such as relevance, user intent, and search engine ranking factors when selecting and optimizing for keywords.

In summary, Keyword Effectiveness Index (KEI) is a metric that is used to determine the effectiveness of a particular keyword or phrase in terms of driving search traffic to a website. It's calculated by dividing the number of searches for a keyword by the number of websites that rank for that keyword. A higher KEI score indicates that a keyword is more effective at driving search traffic to a website, as there are fewer websites competing for that keyword.