Understanding Keyword Density
Keyword density is the frequency of a word or phrase compared with the total word count. It is useful for spotting repetition, checking whether a draft covers its main topic, and comparing body copy with SEO elements such as the title, meta description, headings, image alt text, and links.
Formula and worked example
For a single word, this checker uses: keyword density = keyword occurrences / total words x 100.
Example: a 500-word article where the keyword appears 10 times has a density of 10 / 500 x 100 = 2%.
For multi-word phrases, the report shows occurrence density (phrase matches divided by total words) and word-share density (phrase matches multiplied by phrase length, then divided by total words). A two-word phrase used 10 times in 500 words is 2% by occurrence density and 4% by word-share density.
How to use this tool
- Choose Text mode for pasted copy or local files, or URL mode for a live webpage audit.
- Enter target keywords if you want a focused check, or leave the field blank to review the top detected terms.
- Use stop-word filtering, minimum word length, number filtering, and custom exclusions to remove repeated navigation labels, brand terms, or irrelevant words.
- Review the one-word, two-word, three-word, and four-word tables, then check whether important terms appear in the title, meta description, headings, image alt text, and link text.