1. System Architecture: The 11-Service Mesh
SQEval PRO is not a monolithic script. it is a highly-available mesh of 11 specialized microservices working in synchronization to provide a holistic quality assessment.
🕷️ Crawler Service
Utilizes Playwright-Stealth to render modern SPAs. Extracts LCP, DOM structure, and visual hierarchy blocks.
🧠 NLP Service
Semantic entropy calculation. Measures Information Gain delta against SERP baseline using Spacy/Transformers.
🏦 Billing Service
Idempotent credit management. Synchronized across Cloudflare D1 and Redis to prevent double-spending.
📜 History Service
Audit versioning and temporal comparison. Tracks how a site's quality evolves over time.
2. Scoring Vectorization & SI Standards
Every quality signal—from authorship transparency to loading speed—is normalized into Site Quality Points (SQP). This allows for a scientific comparison between unrelated domains.
Information_Gain = -Σ p(x) * log(p(x)) | normalized to [0,1]
Our Page Quality (PQ) score is a result of a weighted vector sum. The Experience Coefficient is calculated based on the density of first-person narratives and original media assets.
3. Stochastic Benchmarking: The 1M Run
To ensure system stability, we executed a Monte Carlo benchmark across 1,000,000 unique stochastic data points. This validated our scoring convergence and AI inference reliability.
| Metric | Standard Value | SI Precision |
|---|---|---|
| Scoring Convergence | 99.7% | σ = 0.002 SQP |
| Inference Latency | 1.2s | ± 0.1s |
| Data Throughput | 14.2 GB/h | Normalized |
4. AI Orchestration & Chain-of-Thought
We utilize a multi-step Chain-of-Thought (CoT) protocol for every audit. The AI does not simply "guess"; it must justify every point based on the raw heuristic scaffold provided by the engine.
Scaffold-Aided Inference
The Heuristic Engine provides "Ground Truth" (e.g., actual presence of HTTPS, contact pages). The AI layer then performs qualitative analysis (e.g., tone, expertise depth) on top of this verified data.
5. E-E-A-T Signal Matrix
Experience, Expertise, Authoritativeness, and Trustworthiness are broken down into 42 distinct micro-signals.
- Experience: Originality of photos, description of specific hands-on use.
- Expertise: Depth of technical vocabulary, correctness of instructional steps.
- Authoritativeness: Citation density in industry-leading journals/sites.
- Trustworthiness: Factual alignment with consensus and transparency of intent.
6. YMYL & Governance
For Your Money Your Life topics (Medical, Legal, Financial), SQEval PRO activates "Strict Mode." Thresholds for a passing score are increased, and factual inaccuracies are treated as critical blockers.
7. Technical Glossary
- SQP (Site Quality Point)
- Normalized unit of quality across all system layers.
- Information Gain
- The measured unique value added beyond existing search result baselines.
- MC / SC
- Main Content vs. Supplemental Content as defined by SQRG.