Keyword Difficulty

A score estimating how hard it would be to rank on page one for a given keyword.

Keyword Difficulty (KD) is a metric, typically scored from 0 to 100, that estimates how competitive it would be to rank in the top 10 organic results for a given keyword. Tools like Ahrefs, Semrush, and Moz each calculate this score differently, but they all primarily factor in the strength (domain rating, backlink profiles) of pages currently ranking.

A KD of 0–20 is generally considered low difficulty, meaning a site with modest authority and good content can realistically rank. KD scores above 60–70 typically indicate that ranking page one requires significant domain authority and a robust backlink profile.

KD is a useful but imperfect filter. It doesn't account for the quality of competing content, the presence of SERP features that suppress clicks, or whether the query has commercial value. A KD 10 keyword with zero buyer intent is often less valuable than a KD 60 keyword with high purchase intent.

In B2B keyword research, KD should be used alongside search volume, search intent, and estimated traffic value — not as a standalone filter.