Topical Authority Density™ is a proprietary Ivica Srncevic metric that measures the concentration, depth, and semantic coherence of authoritative signals within a page or content cluster. It evaluates entity depth, conceptual layering, expert‑level coverage, and semantic reinforcement patterns to determine how strongly a topic is represented in the content. This metric is independently developed and not affiliated with Google or any search engine.
What the metric measures
1. Entity Depth Density
How deeply the content explores:
- primary entities
- secondary entities
- related entities
- expert‑level attributes
- advanced relationships
This is what separates “surface content” from “expert content”.
2. Conceptual Layering
Does the content include:
- foundational concepts
- intermediate concepts
- advanced concepts
- adjacent concepts
- expert‑level nuances
This is how AI systems detect expertise.
3. Semantic Reinforcement Patterns
Does the content reinforce authority through:
- consistent terminology
- expert vocabulary
- attribute‑rich descriptions
- contextual examples
- domain‑specific references
This is where LLMs detect “expert voice”.
4. Cluster Integration Strength
How well the page connects to:
- supporting articles
- deeper subtopics
- related guides
- entity‑driven clusters
This is the “authority graph” dimension.
Scoring Model
| Component | Weight |
|---|---|
| Entity Depth Density | 35% |
| Conceptual Layering | 30% |
| Semantic Reinforcement Patterns | 20% |
| Cluster Integration Strength | 15% |
If you want to explore how this metric fits into the broader diagnostic system, you can also review my other proprietary frameworks, including the Semantic Coverage Index™, Query Intent Alignment Score™, Entity Clarity Index™, Entity Graph Stability Score™, Topical Authority Density™, and Schema Confidence Score™. These diagnostics work together inside the AI Visibility Inspector and the NovaX AI Visibility Intelligence engine to provide a complete semantic visibility assessment. For a broader strategic context, you can also explore my foundational frameworks, such as the SEO Maturity Model, Semantic Cluster Blueprint, Visibility Strategy System Design, AI Search Readiness Audit, International SEO GEO Optimization, and Indexation & Crawl Diagnostic.
