SEO fundamentals, E-E-A-T, Core Web Vitals, and Google algorithm principles.
Scanned 9/4/2026
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---
name: seo-fundamentals
description: SEO fundamentals, E-E-A-T, Core Web Vitals, and Google algorithm principles.
category: seo
version: 4.1.0-fractal
layer: master-skill
---
# SEO Fundamentals
> Principles for search engine visibility.
---
## 1. E-E-A-T Framework
| Principle | Signals |
|-----------|---------|
| **Experience** | First-hand knowledge, real examples |
| **Expertise** | Credentials, depth of knowledge |
| **Authoritativeness** | Backlinks, mentions, industry recognition |
| **Trustworthiness** | HTTPS, transparency, accurate info |
---
## 2. Core Web Vitals
| Metric | Target | Measures |
|--------|--------|----------|
| **LCP** | < 2.5s | Loading performance |
| **INP** | < 200ms | Interactivity |
| **CLS** | < 0.1 | Visual stability |
---
## 3. Technical SEO Principles
## 🧠 Knowledge Modules (Fractal Skills)
### 1. [Site Structure](./sub-skills/site-structure.md)
### 2. [Performance](./sub-skills/performance.md)
### 3. [Page Elements](./sub-skills/page-elements.md)
### 4. [Content Quality](./sub-skills/content-quality.md)
### 5. [What Google Looks For](./sub-skills/what-google-looks-for.md)
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