ONPAGE · SEO GLOSSARY
Keyword Density
The percentage of times a keyword appears relative to total word count on a page — a historical metric that is no longer a meaningful ranking signal and should not be optimised for.
Definition
Keyword density is the number of times a target keyword appears on a page divided by the total word count, expressed as a percentage. A page with 1,000 words that mentions "SEO audit" 10 times has a keyword density of 1%. In the early days of search engines (pre-2000s), keyword density was a significant ranking signal — pages stuffed with keywords ranked higher. Google's algorithms have long since evolved past this. Modern Google uses semantic understanding, TF-IDF, and entity recognition to understand topic relevance — keyword repetition beyond natural usage provides no benefit and can trigger keyword stuffing penalties.
Why it matters for SEO
Keyword density is a red herring. Optimising for a specific percentage (many old guides suggest 1–2%) causes unnatural writing that hurts readability without helping rankings. Instead, write naturally for the topic, include the keyword in the title tag, H1, and at least one early heading — and then focus on covering the topic comprehensively. Google's natural language processing will find topic relevance without counting keyword frequency. The only "density" worth thinking about is whether your content covers the topic as comprehensively as competing pages.
How DeepSEOAnalysis checks this
The audit does not flag low keyword density. It checks for keyword stuffing — unnaturally high repetition that triggers a spam signal — and keyword presence in high-signal locations: title tag, meta description, H1, and at least one H2. These are the locations where keyword presence genuinely matters, not body copy frequency.
Useful tools and resources
GLOSSARY
Related terms
onpage
Thin Content
Pages with little or no unique value — low word count, duplicated from other sources, or auto-generated — that Google may ignore or penalize.
Read definition →links
Topical Authority
A site's perceived depth of expertise in a subject area, built by covering a topic comprehensively rather than by accumulating generic backlinks.
Read definition →onpage
Title Tag
The HTML <title> element that names a page in browser tabs, SERP snippets, and social shares — the single most important on-page SEO element.
Read definition →onpage
Search Intent
The underlying goal a searcher has when typing a query — informational, navigational, commercial, or transactional — which determines what content type and format will rank.
Read definition →See how your site scores on Keyword Density.
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