Seo Gaca

SEO GACA MCP — GEO · Audit · Crawl · Analyze

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         GEO · Audit · Crawl · Analyze

The most comprehensive SEO / Performance / GEO / UX MCP server.

37 tools in one MCP — technical SEO, Lighthouse performance (CWV + INP + TTFB), GEO (AI search optimization), content analysis, accessibility, security, UX audit, and more.

What It Does

Area	What GACA Measures
Performance	Lighthouse scores (mobile + desktop), Core Web Vitals: LCP, FCP, CLS, TBT, SI, TTI, INP, TTFB. Fallback basic timing when Lighthouse unavailable
Technical SEO	Meta tags, robots.txt, sitemap, crawlability, HTTP headers, canonical, hreflang
GEO	AI search optimization — Princeton 9 methods, AI crawler robots.txt, AI citation readiness, optimization checklist
Content	Readability (Flesch-Kincaid, Gunning Fog, FRE), keyword density, E-E-A-T signals, topic clusters
Schema	JSON-LD validation vs Google requirements, 10 templates, Rich Results eligibility
Security	SSL/TLS audit, 7+ security headers, mixed content detection
Links	BFS crawl + internal link graph, broken link scan
Accessibility	WCAG 2.2 Level AA, color contrast, tap targets, font size
UX	Navigation, search, semantic structure, responsive design, mobile menu, skip links
Competitors	Side-by-side comparison (up to 3 URLs) with optional Lighthouse benchmarking
International	Hreflang validation, local SEO, NAP extraction
Media	Image/video SEO audit, format detection
Reports	Structured JSON + branded PDF (EN/PL)

Status

Alpha — 37 tools fully implemented. Contributions welcome!

Quick Start

# Install via pip
pip install seo-gaca-mcp

# Or via uv
uv pip install seo-gaca-mcp

Usage with Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "gaca": {
      "command": "seo-gaca-mcp"
    }
  }
}

Usage with Claude Code

{
  "mcpServers": {
    "gaca": {
      "command": "uvx",
      "args": ["seo-gaca-mcp"]
    }
  }
}

Docker

docker build -t seo-gaca-mcp .
# Test via MCP stdio:
echo '...' | docker run -i seo-gaca-mcp

Tools Reference

Performance (1)

Tool	Description
seo_check_performance	Lighthouse scores + Core Web Vitals: LCP, FCP, CLS, TBT, SI, TTI, INP, TTFB (mobile + desktop)

Technical SEO (4)

Tool	Description
seo_audit_technical	Full 13-step SEO + UX audit with 11-category scoring (1-10)
seo_check_meta	Quick meta tags analysis
seo_check_crawlability	Robots.txt + sitemap validation
seo_check_headers	HTTP response headers check

GEO — AI Search Optimization (7)

Tool	Description
seo_audit_geo	Princeton 9 methods GEO audit
seo_optimize_geo	GEO optimization suggestions
seo_check_ai_robots	AI crawler robots.txt analysis (13 bots tracked)
seo_generate_ai_robots	Generate AI-optimized robots.txt
seo_check_ai_visibility	AI citation readiness check
seo_get_geo_checklist	GEO optimization checklist (P0/P1/P2)
seo_get_seo_checklist	Traditional SEO checklist (P0/P1/P2)

Content Analysis (3)

Tool	Description
seo_analyze_content	Readability (FK, Fog, FRE) + keyword density
seo_check_eeat	E-E-A-T signal detection
seo_audit_topic_clusters	Topic cluster structure analysis

Schema / Structured Data (3)

Tool	Description
seo_validate_schema	JSON-LD validation vs Google requirements
seo_generate_schema	Generate JSON-LD from 10 templates
seo_check_rich_results	Rich Result eligibility check

Security (2)

Tool	Description
seo_audit_ssl	Full SSL/TLS audit (cert chain, TLS versions, ciphers)
seo_check_security_headers	7+ security headers analysis

Links (2)

Tool	Description
seo_audit_links	BFS crawl + internal link graph analysis
seo_check_broken_links	Quick broken link scan

Accessibility (1)

Tool	Description
seo_audit_accessibility	WCAG 2.2 Level AA audit

International & Local (3)

Tool	Description
seo_check_hreflang	Hreflang validation + reciprocal link check
seo_audit_local	Local SEO + NAP extraction
seo_audit_media	Image/video SEO audit

Competitors (1)

Tool	Description
seo_compare_competitors	Side-by-side comparison (up to 3) with optional Lighthouse

Advanced (4)

Tool	Description
seo_check_js_rendering	SPA/JS rendering detection (React, Next.js, Vue, Angular, Nuxt)
seo_analyze_logs	Server access log analysis
seo_analyze_gsc	Google Search Console CSV data analysis
seo_compare_audits	Audit diff and historical trends

Reporting (1)

Tool	Description
seo_generate_report	Structured JSON report + branded PDF generation (EN/PL)

Utility (1)

Tool	Description
seo_get_config	Server status, feature availability, version info

GEO: AI Search Optimization

GEO (Generative Engine Optimization) helps your content get cited by AI search engines (ChatGPT, Perplexity, SGE, Claude, Copilot).

Based on Princeton research (arXiv:2311.09735, KDD 2024):

Method	Uplift	Description
Cite Sources	+40%	Authoritative references and citations
Statistics	+37%	Specific numbers, percentages, data
Quotations	+30%	Expert quotes with attribution
Authoritative Tone	+25%	Confident, expert language
Easy Language	+20%	Clear, accessible explanations
Technical Terms	+18%	Domain-specific vocabulary
Unique Words	+15%	Vocabulary diversity
Fluency	+15%	Natural flow, good structure
Keyword Stuffing	-10%	Actively avoid!

Performance Metrics

GACA measures all Core Web Vitals including the newest metrics:

Metric	Full Name	Good	Needs Improvement	Poor
LCP	Largest Contentful Paint	<2.5s	2.5–4.0s	>4.0s
INP	Interaction to Next Paint	<200ms	200–500ms	>500ms
CLS	Cumulative Layout Shift	<0.1	0.1–0.25	>0.25
FCP	First Contentful Paint	<1.8s	1.8–3.0s	>3.0s
TTFB	Time to First Byte	<800ms	800–1800ms	>1800ms
TBT	Total Blocking Time	<200ms	200–600ms	>600ms
SI	Speed Index	<3.4s	3.4–5.8s	>5.8s
TTI	Time to Interactive	<3.8s	3.8–7.3s	>7.3s

Configuration

# Optional: Lighthouse timeout (default: 120s)
export GACA_LIGHTHOUSE_TIMEOUT=120

License

MIT License — Bartosz Gaca

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