seo-fundamentals
SEO fundamentals, E-E-A-T, Core Web Vitals, and Google algorithm principles.
53
Quality
61%
Does it follow best practices?
Run evals on this skill
Adds up to 20 points to the overall score
View guide
Securityby
Passed
No findings from the security scan
Fix and improve this skill with Tessl
tessl review fix ./.agents/skills/seo-fundamentals/SKILL.mdSEO 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
Site Structure
| Element | Purpose |
|---|---|
| XML sitemap | Help crawling |
| robots.txt | Control access |
| Canonical tags | Prevent duplicates |
| HTTPS | Security signal |
Performance
| Factor | Impact |
|---|---|
| Page speed | Core Web Vital |
| Mobile-friendly | Ranking factor |
| Clean URLs | Crawlability |
4. Content SEO Principles
Page Elements
| Element | Best Practice |
|---|---|
| Title tag | 50-60 chars, keyword front |
| Meta description | 150-160 chars, compelling |
| H1 | One per page, main keyword |
| H2-H6 | Logical hierarchy |
| Alt text | Descriptive, not stuffed |
Content Quality
| Factor | Importance |
|---|---|
| Depth | Comprehensive coverage |
| Freshness | Regular updates |
| Uniqueness | Original value |
| Readability | Clear writing |
5. Schema Markup Types
| Type | Use |
|---|---|
| Article | Blog posts, news |
| Organization | Company info |
| Person | Author profiles |
| FAQPage | Q&A content |
| Product | E-commerce |
| Review | Ratings |
| BreadcrumbList | Navigation |
6. AI Content Guidelines
What Google Looks For
| ✅ Do | ❌ Don't |
|---|---|
| AI draft + human edit | Publish raw AI content |
| Add original insights | Copy without value |
| Expert review | Skip fact-checking |
| Follow E-E-A-T | Keyword stuffing |
7. Ranking Factors (Prioritized)
| Priority | Factor |
|---|---|
| 1 | Quality, relevant content |
| 2 | Backlinks from authority sites |
| 3 | Page experience (Core Web Vitals) |
| 4 | Mobile optimization |
| 5 | Technical SEO fundamentals |
8. Measurement
| Metric | Tool |
|---|---|
| Rankings | Search Console, Ahrefs |
| Traffic | Analytics |
| Core Web Vitals | PageSpeed Insights |
| Indexing | Search Console |
| Backlinks | Ahrefs, Semrush |
Remember: SEO is a long-term game. Quality content + technical excellence + patience = results.
- Repository
- vudovn/ag-kit
- Commit
04514f0
- Last updated
- First committed
Also appears in
lchenrique/politron-ide
In sync
since Feb 24, 2026
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.