Kira 15 May 2026 · Discover Kira
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TF-IDF Analyzer

Compare your content against a competitor to find missing keywords and content gaps. See exactly which terms to add.

Free Side-by-side comparison

What is TF-IDF?

TF-IDF (Term Frequency-Inverse Document Frequency) measures how important a word is within a document relative to a collection of documents. In SEO, it helps you understand which terms competitors use that you're missing, and which unique terms give your content its distinctive value.

Find content gaps

Discover keywords and topics your competitors cover that you're missing. Fill these gaps to improve your rankings.

Avoid over-optimization

See if you're using certain terms too frequently compared to natural content. Balance is key for modern SEO.

Improve topical depth

TF-IDF reveals related terms and concepts that add depth to your content, signaling expertise to search engines.

Data-driven content

Stop guessing which keywords to include. Use TF-IDF analysis to make evidence-based content decisions.

Advanced competitive analysis with Tonaily

Tonaily analyzes up to 3 competitors simultaneously and tells you exactly which keywords to add to outrank them.