KD – Keyword Difficulty (SEOZoom)

Keyword Difficulty is a proprietary SEOZoom metric that indicates the difficulty of ranking for a given keyword and estimates the level of competitiveness of a SERP based on the analysis of competitors placed in TOP10 and their Zoom Authority.

It is a value from 0 to 100 on a logarithmic scale – the higher the value, the greater the difficulty of ranking for that keyword because the more competitive and authoritative the competing domains are, which have high levels of ZA.