Keyword Density Checker
See which words a page actually spends itself on — and whether a keyword turns up early enough to matter.
Runs entirely in your browser
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How to use
- Paste the copy you are checking — an article, a landing page, a draft.
- Read the ranked phrases to see what the page actually emphasises.
- Type the keyword you are writing for to see how often, and how early, it appears.
- Switch phrase length to find the two- and three-word phrases people search for.
Features
- One, two and three-word phrases, ranked by use.
- Phrases never span punctuation, so "Buy now. Free shipping" yields no phrase "now free".
- Common words hidden from the results but kept in the total, so densities stay honest.
- Accents and case folded — công cụ and cong cu are one keyword, shown as written.
- A target keyword checked for early placement, not just frequency.
- Runs entirely in your browser; nothing you paste is uploaded.
Frequently asked questions
- What density should I aim for?
- None in particular. No search engine publishes a target, and none has ranked on density alone for many years. What the reading is good for is catching two states you can act on: a keyword the page never really uses, and one repeated so often the prose has stopped being written for a reader. The bands here mark roughly under 0.5% and over 2.5%, as a prompt to reread, not a score to hit.
- Why do common words still count towards the total?
- Because a 500-word article does not become a 300-word article once you remove "the". Dropping stop words from the denominator inflates every density on the page — the usual reason two tools disagree about the same text. Here they are hidden from the results and kept in the total.
- Why is a two-word phrase's share bigger than I expected?
- Share is how much of the page the phrase occupies. A two-word phrase used five times fills ten of the page's words, so it reads as 10% of a 100-word page. That is what makes one-, two- and three-word results comparable with each other.
- Does capitalisation or an accent split a keyword in two?
- No. Words are compared with case and Vietnamese diacritics removed, so SEO, seo and Seo are one keyword, as are công cụ and cong cu. The spelling shown back is the one that appears most often in your text.
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