What is keyword difficulty?
Keyword difficulty (KD) is a 0 to 100 estimate of how hard it is to rank on the first page of Google for a search. It is mostly driven by the link strength of the pages already ranking, and in better models also by how well they match the search. Low KD with steady volume is where new sites win first.
How is keyword difficulty calculated?
Most KD scores start from the pages in the current top 10: how many sites link to them and how strong those sites are. The stronger the top 10, the higher the score.
Some models also look at on-page relevance (do the ranking pages target the exact search in their titles and URLs?), at how crowded the results page is with ads, maps and answer boxes, and at whether the search is really a brand name.
Because every tool uses a different link index and formula, the same keyword can be 25 in one tool and 45 in another. Compare keywords inside one tool, never across tools.
What do KD scores mean?
| KD | Difficulty | What it usually takes |
|---|---|---|
| 0 to 29 | Easy | A helpful, focused page on a new or small site has a real chance. |
| 30 to 49 | Possible | Good content plus a few quality links to the page. |
| 50 to 69 | Hard | An established site and links pointing at the page itself. |
| 70 to 100 | Very hard | Usually held by big brands. Target a longer, more specific version. |
How to use KD to choose keywords
- 1Collect keywords around one topic, for example everything people ask about how to start a youtube channel.
- 2Check volume and KD for each one. Ignore anything with no searches at all.
- 3Sort by KD and keep the ones that fit your site strength. A young site should start under 30.
- 4Open the search results for your shortlist. Look for weak sites, forum threads and thin pages in the top 10. Those are signs you can compete.
- 5Check the search intent. If the top results are videos or product pages and you plan a blog post, pick another keyword.
- 6Write one strong page per keyword group, then build internal links between them.
Why KD is only half the story
KD tells you how hard the fight is, not whether it is worth it. A KD 10 keyword that nobody searches is easy and useless. Weigh difficulty against search volume, cost per click (a sign of commercial value) and how well the keyword fits your business.
Always look at the real results page before you commit. Numbers summarise the page, your eyes confirm it.
Difficulty by SBMM, built from the page you are looking at
SBMM SERP Signals calculates keyword difficulty from the live Google results page in front of you. It shows one SEO difficulty score plus two meters: Off-Page (links and site strength behind the top results) and On-Page (how closely they match the search). It also flags brand searches and counts how crowded the page is.
- SEO difficulty, Off-Page and On-Page meters
- Brand query check
- Volume, CPC, competition and trend under the search box
Frequently asked questions
For a new or small website, keywords under 30 are a good place to start. Established sites can target 30 to 60. Scores above 70 are usually held by big brands and need a strong site and many links.
Each tool uses its own link data and its own formula, and some include on-page relevance or page layout while others do not. That is why KD should be compared inside one tool, not across tools.
Yes. The free SBMM SERP Signals Chrome extension shows a KD score on every Google search, in the sidebar and in the keyword line under the search box. No account is needed.
No. Check that people actually search for it, that the intent matches the page you plan to write, and that it fits your business. Low difficulty with no demand brings no traffic.