Clean Variation Density

Clean Variation Density is the ratio of keyword-variation matches to RankGear’s density word count within the same cleaned page content. It is reported as a ratio, not a percentage, and a higher value is not automatically better.

What it measures

Clean Variation Density measures how often the run’s keyword-variation terms occur relative to RankGear’s density word count in the same cleaned content. It reflects how concentrated the query-related vocabulary is after markup, scripts, styles, and comments are removed. The result is expressed as a ratio rather than a value multiplied by 100.

How RankGear measures it

RankGear counts matches from the run’s variation set in the cleaned page content. Longer terms are processed first and consumed within the set, which reduces overlapping double counts. The denominator counts tokens containing 3 to 64 word characters in that same cleaned content. RankGear then divides the variation-match count by the density word count. The preserved formula does not guard against a zero denominator, so an empty page can produce a non-finite value.

Clean Variation Density = variation-match count / density word count

density word count = tokens of 3 to 64 word characters in the cleaned content

How to optimize it

Improve the page’s natural use of relevant query language — the primary phrase, useful variants, and terminology that supports the search intent. Add depth through accurate sections, examples, comparisons, definitions, and answers rather than repeating terms mechanically. Treat the number as an observation rather than a target: use the selected deficit target and its correlation to decide whether a density gap is genuinely actionable. If the page already meets the field, focus on clarity and topical completeness.

Important considerations

• The value is a ratio, not a percentage display.
• Variation lists depend on the analyzed keyword and the run configuration, so the same page can score differently across runs.
• More density is not automatically better.
• Very short pages can produce volatile ratios, and an empty page can yield a non-finite value.
• Review occurrence density alongside unique-variation breadth and contextual-density factors rather than in isolation.
• This is a prioritization signal: it tracks how vocabulary concentration relates to position within a measured result set, not a lever that guarantees a ranking.

Related factors

• Clean Keyword Density in the HTML Tag
• Exact Match Density

Part of the Factors reference · how RankGear measures · glossary.