Keyword Difficulty

Keyword difficulty is an estimate of how hard it would be to rank on the first page of search results for a given query. It is usually shown as a score, often on a scale of 0 to 100, by SEO tools to indicate how competitive a keyword is.

Keyword difficulty is a tool-generated metric, not a number Google publishes, so the score depends on whichever provider calculates it. Most tools base difficulty heavily on the strength of the pages currently ranking, looking at signals like the authority and backlink profiles of the top results. A higher score means the existing competition is strong and would be hard to displace, while a lower score suggests more room for a newer or smaller site to break in.

Because each tool uses its own formula and data, difficulty scores are not directly comparable across providers, and the same keyword can show different values in different tools. They are best read as a relative guide for prioritization rather than a precise verdict. The score also does not capture everything that determines real difficulty, such as how well the ranking pages match intent, whether SERP features crowd out organic results, or how strong your own site is relative to the competition.

In practice, difficulty is most useful weighed against search volume, intent, and your own authority. A realistic strategy often means targeting lower-difficulty, well-matched keywords early to build momentum, then pursuing harder terms as your site strengthens. The smartest move is frequently to find queries where the difficulty is lower than the volume and intent would suggest, which is where the easiest wins tend to hide.

Related: Search Volume, Search Query, SERP