Free Keyword Density Checker

Paste your content or enter a URL above to analyze keyword usage. The tool counts word frequency for single words, two-word phrases, and three-word phrases, then calculates the density of each as a percentage of total content. Use this to ensure your target keywords appear naturally without over-optimization.

Understanding keyword density

Keyword density is the percentage of times a keyword appears relative to the total word count. While there is no magic number, most SEO practitioners aim for a primary keyword density between 1% and 3%. More important than hitting a specific number is ensuring your content reads naturally. Search engines have moved far beyond simple keyword counting and now evaluate topical relevance, semantic context, and user intent.

What to look for

• Primary keyword density between 1-3% for the main target term
• Natural distribution of keywords throughout the content, not just crammed into one section
• Presence of semantically related terms and synonyms
• No single keyword dominating unnaturally over the rest
• Keyword presence in headings, first paragraph, and conclusion

Avoiding keyword stuffing

Keyword stuffing — repeating the same term excessively — is a well-known spam signal that can lead to ranking penalties. Modern SEO focuses on topical depth rather than raw repetition. Write for your audience first and use keyword density as a sanity check afterward. If a term appears at 5% or higher density, it is likely being overused and the content should be rewritten for a more natural reading experience.

Auditite analyzes keyword usage across every page of your site, identifies over-optimized and under-optimized content, and suggests improvements using AI-powered content analysis.