Keyword difficulty: what the score means
·4 min read
Keyword difficulty is a 0 to 100 estimate of how hard it would be to reach the first page of Google for a search. Most tools calculate it mainly from the backlinks pointing at the pages that rank there today, so a high score means "the current top results have strong link profiles," not "Google will refuse you." Google publishes no difficulty score of its own. Treat the number as a first filter, then look at the actual results page before you commit to a keyword.
What does keyword difficulty measure?
Keyword difficulty measures the strength of the pages you would have to beat, mostly by counting links. A typical tool pulls the top 10 results for the keyword, looks up how many sites link to each one, and compresses that into a single number.
That model leaves a lot out. It does not know how well each ranking page answers the query. It knows nothing about your site, so the same score of 45 means something very different to a ten-year-old domain in the niche and to a blog launched last month.
It also assumes the results are pages you can compete with. If the top results are a calculator, a map pack and three marketplace listings, the link counts behind them tell you very little.
Why keyword difficulty scores differ between tools
Scores differ between tools because each vendor builds its own formula on its own link index. Run one keyword through three tools and you can get three numbers that sit far apart. None of them is wrong in a way you can check, because none of them is measuring Google.
Each vendor crawls the web separately, so they find different links to the same page. Some weight only referring domains, others mix in their own authority score or how many results are big brands. Each picks its own bands for "easy" and "hard." And a results page that changed last week may still be scored from links measured months ago.
So pick one tool and compare keywords inside it. Difficulty works as a ranking of your own list, not as an absolute number.
Does Google have a keyword difficulty score?
No. Google does not publish any organic keyword difficulty metric, and its own guide to AI features in Search states that no third-party tool has access to Google's ranking or AI systems. Every difficulty score is an outside estimate.
The number people often mistake for one is the "Competition" column in Google Ads Keyword Planner. That column is about ads. Google's own reference defines it as how competitive ad placement is for a keyword, based on how many advertisers bid on it relative to all keywords on Google. A keyword can show "High" competition because insurers pay a lot for the click while the organic results are weak forum threads. The reverse happens too. If you are planning content, ignore that column.
How to judge keyword difficulty from the results page
The most reliable difficulty check is a search. Open a private window, set it to the country you care about, search the keyword and read the first page as a competitor would. Here is what I look at, in order.
- What Google shows above the links. An AI Overview, a featured snippet, a map pack, shopping results or a video carousel all push the organic links down. Even a ranking you win may get few clicks.
- What kind of pages rank. If every result is a product category page and you planned a blog post, the search intent does not match and no score will save you.
- Who ranks. Ten household brands is hard. A mix that includes small sites, forum threads, Reddit posts or pages from sites you have never heard of means Google has not found a strong answer yet.
- How good the pages are. Look for thin pages, outdated dates, answers that miss the question or pages that only mention the topic in passing. Those are the openings.
- How specific the results are. If the ranking pages target a broader topic than the query, a page that answers the exact query has a real chance.
Then weigh it against your site. A site that already ranks for related keywords and has links from the niche can take on harder terms than a new one. If you are starting out, the low-competition keywords guide covers how to find the queries where step 3 and step 4 go your way.
A score is still worth having. It sorts a list of 200 keywords in seconds, so you open the results page only for the ones that pass.
Check keyword difficulty for your keyword list
Keyword Metrics takes a list you already have, up to 100 keywords pasted one per line, and returns each one's difficulty from 0 to 100 next to its estimated monthly Google searches, search intent, cost per click, top-of-page bid range and how searches changed over the last year. You choose the country. It then sorts the list. Keywords at difficulty 30 or below with at least 10 searches a month count as easy wins, and informational searches at difficulty 50 or below with enough searches are flagged as blog topics. Keywords with no data are listed separately.
Volumes and difficulty are estimates from our keyword data, so use them to compare keywords against each other, then check the results page for the ones you shortlist. It does not find new keywords and it does not track your own rankings. For finding keywords first, see how to do keyword research. A run costs 33 credits.