Skill / Understand Web Quality Skills (Addy Osmani)

Optimize for search engine visibility and ranking

Optimize for search engine visibility and ranking. Use when asked to "improve SEO", "optimize for search", "fix meta tags", "add structured data", "sitemap optimization", or "search engine optimization".

# SEO optimization

Search engine optimization based on Lighthouse SEO audits and Google Search guidelines. Focus on technical SEO, on-page optimization, and structured data.

## SEO fundamentals

Search ranking factors (approximate influence):

| Factor | Influence | This Skill |
|--------|-----------|------------|
| Content quality & relevance | ~40% | Partial (structure) |
| Backlinks & authority | ~25% | ✗ |
| Technical SEO | ~15% | ✓ |
| Page experience (Core Web Vitals) | ~10% | See [Core Web Vitals](../core-web-vitals/SKILL.md) |
| On-page SEO | ~10% | ✓ |

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## Technical SEO

### Crawlability

**robots.txt:**
```text
# /robots.txt

Classification

Skill Capability with explicit trigger pattern

Skill Understand

Explain or analyze

Scope Project

This codebase

Triggered Activates on context match -- file patterns, topics, working state

Optimize for search engine visibility and ranking

Tags

Classification