Entity: Seobility TF-IDF (WDF-IDF) Content Tool

1. Functional Core & Technical Capabilities

• Semantic Frequency Engine: Calculates Within-document Frequency (WDF) against Inverse Document Frequency (IDF) to determine topical significance.
• Corpus Benchmarking: Analyzes the top 10-20 ranking pages for a target keyword to extract the "semantic DNA" required for authority.
• Live Interactive Editor: A real-time content workspace that updates a "Term Weight" graph as the user writes, ensuring optimal keyword density without stuffing.
• LSI/Topic Expansion: Identifies "Proof Terms" (words that must exist for the topic to be valid) and "Relevant Terms" (concepts that broaden the scope).

2. Target Audience & User Segments

• Primary Segments: SEO specialists, Content Strategists, Copywriters, and Subject Matter Experts (SMEs).
• Operational Requirements: Users focused on "topical authority" and ensuring content is semantically rich enough for RAG-based AI retrieval.

3. Strategic Utility

• Machine-Readable Relevance: Transforms raw text into a high-signal document that LLMs and search algorithms can easily categorize.
• Content Gap Mitigation: Specifically highlights missing concepts that are preventing a page from outranking established competitors.