What is keyword difficulty?
Keyword difficulty (KD) is a score — usually 0 to 100 — that estimates how hard it is to rank in the top results for a keyword. It is calculated from the authority of the pages currently ranking, typically using referring domains as a proxy for strength.
Why keyword difficulty matters
KD helps you choose realistic targets. Competing for high-difficulty keywords with a low-authority site wastes months; winning a cluster of low-to-mid difficulty keywords builds the authority that later unlocks harder terms.
How to use keyword difficulty
- Target low-KD keywords first to build ranking history.
- Match difficulty to your site’s current authority.
- Look beyond the score: relevance and search intent matter more than a number.
- Track difficulty changes over time as competitors shift.
KD and GEO
AI visibility is less tied to raw authority scores — being answer-ready and entity-relevant can win citations even for terms where classic ranking is hard.
Related terms
How Social SEO Team can help
We build keyword strategies matched to your authority and goals. Explore our SEO services.