What is the real formula for Keyword Effectiveness Index (KEI)?
There are many versions of this formula, but in general, it is the ratio between search volume and some competition metric or keyword difficulty metric. It is often expressed as a
85SIXTY Adds SEO Industry Veteran to Its Growing Digital Agency Leadership Team
Benj Arriola joins 85SIXTY as Senior Director SEO bringing over 2 decades of agency experience in marketing leadership and enterprise SEO strategies. We’re excited to have hi