Keyword Density Checker
Analyze word frequency on any page. See top keywords, phrases, and density percentages.
Free. No signup required.
Track what AI says about your keywords
Monitor if ChatGPT, Perplexity, and Claude mention your brand for your target keywords. Weekly reports.
Why this matters
Find your real topics
See what keywords actually dominate your page. Multi-word analysis reveals whether your content matches the topics you're targeting for SEO and AI.
Avoid keyword stuffing
Google penalizes pages with unnaturally high keyword density. Check that your target keywords appear at healthy 1-2% density, not 5%+.
Optimize for AI citations
AI assistants look for consistent topic signals. If your page mentions 'AI visibility' 15 times but never mentions your product name, AI won't connect the two.
How it works
Enter any URL — we extract the visible text content
See top single keywords, 2-word phrases, and 3-word phrases with density %
Identify which topics dominate your page and optimize accordingly
Frequently Asked Questions
What is keyword density?
Keyword density is the percentage of times a keyword appears on a page relative to the total word count. For example, if 'AI visibility' appears 5 times in a 500-word article, the density is 1%. It's a basic SEO metric for ensuring content relevance.
What is the ideal keyword density?
There's no magic number, but 1-2% is generally recommended. Below 0.5% means the keyword might not be prominent enough. Above 3% risks keyword stuffing, which Google penalizes. Focus on natural writing rather than hitting exact percentages.
Does keyword density matter for AI visibility?
Indirectly. AI models understand context and semantics, not just raw keyword counts. But ensuring your primary topic keywords appear naturally and consistently helps AI accurately classify your content. The right keywords help AI recommend your page for relevant queries.
What's the difference between 1-word, 2-word, and 3-word phrases?
Single keywords show individual word frequency. 2-word phrases (bigrams) reveal common concepts like 'AI visibility' or 'free tool'. 3-word phrases (trigrams) show specific topics like 'AI visibility audit'. Multi-word analysis reveals your content's true themes.
How do I improve my keyword strategy?
Check that your target keyword appears in the title, H1, first paragraph, and naturally throughout the content. Use related terms and synonyms. Our AI visibility audit shows exactly which keywords AI associates with your brand.
Should I optimize keyword density for every page?
Focus on key landing pages, product pages, and pillar content. Blog posts should target specific keywords naturally. Don't stuff keywords — Google and AI are smart enough to understand your topic without repetition.
Related Free Tools
Want the complete picture?
Run a full AI visibility audit — 25+ signals, fix roadmap, and AI-generated files.