About the Keyword Density Checker
This keyword density checker measures how often a target keyword or phrase appears in a piece of copy and what share of the words it accounts for. Paste a blog post, landing page or product description, type the keyword you are optimising for and, optionally, your page title. You get the density, the number of exact-match occurrences, where the keyword first appears, whether it sits in the title and the opening 100 words, and a ranking of the other words and two-word phrases you use most.
It is built for SEO writers, content marketers and site owners doing an on-page check before publishing — to confirm the main topic is clear from the start without tipping into keyword stuffing, and to spot related terms that dominate the copy. Matching is case-insensitive and on whole words, so "fund" does not match "funding".
Google does not publish a target density and warns against repeating keywords unnaturally, so use the number as a sanity check rather than a goal. Prominence — using the keyword early, in the title and in the first paragraph — usually matters more than hitting a precise percentage. Your text is analysed in the browser and never uploaded.
With the default inputs, the keyword density is 10.34%. Change any value above to recalculate instantly.
How to use the keyword density checker
- 1Paste the body copy of your page.
- 2Type the keyword or phrase you want to rank for.
- 3Optionally add your page title to check placement.
- 4Review density, first position and the assessment.
- 5Check the top-terms table for accidental repetition, then edit and re-check.
Formula and method
The text is split into words (runs of letters or digits, keeping internal apostrophes and hyphens) and lower-cased. The keyword is split the same way and counted wherever the exact sequence of words appears; matches do not overlap. Density multiplies the count by the number of words in the keyword and divides by the total word count, so a two-word phrase used 3 times in 60 words has a density of 10%.
Prominence is reported as the word position of the first match, whether that falls within the first 100 words, and whether the title contains the phrase. The assessment bands — under 0.5% light, 0.5–3% natural, over 3% high — are editorial rules of thumb, not a published search engine standard. The top-terms table ignores common words such as "the" and "and" and lists two-word phrases used more than once.
- occurrences
- Exact, whole-word matches of the keyword
- words in keyword
- 1 for a single word, 2+ for a phrase
- total words
- All words in the copy
Worked examples
Emergency fund article intro
The 58-word passage uses "emergency fund" 3 times. Each use covers 2 words, so density is 3 × 2 ÷ 58 = 10.34% — far too high for a full article, although short intros naturally run high. The phrase first appears at word 2 and is in the title.
Single keyword in product copy
"wallet" appears 3 times in 33 words: 3 ÷ 33 = 9.09%. It shows up at word 3 but not in the title, so the checker suggests adding it there.
Keyword missing from the copy
The emergency-fund passage never mentions "credit score", so the count, density and first position are all zero. With no title entered, the title check shows a dash.
Frequently asked questions
What is the ideal keyword density for SEO?+
There is no official ideal. Google says it does not use a target density and treats unnatural repetition as keyword stuffing. Many writers find 0.5–2% reads naturally for a main keyword in a long article, but clarity matters more than the number.
How is keyword density calculated?+
Count how many times the keyword appears, multiply by the number of words in the keyword, divide by the total word count and multiply by 100. Ten uses of a single word in 1,000 words is a density of 1%.
Does keyword density still matter in 2026?+
Not as a ranking formula. Search engines understand synonyms and topics, so density is mainly a guard-rail: very low density can mean the page is unclear about its topic, and very high density can make the copy read as spam.
What is keyword prominence?+
Prominence describes how early and visibly a keyword appears — in the title, headings and opening sentences. Using the main phrase early helps readers confirm they are on the right page, which is why the checker reports first position and title placement.
Does the checker match plurals and variations?+
No. It counts exact whole-word matches, case-insensitively, so "fund" and "funds" are different terms. Check variations separately or look at the top-terms table to see related forms.