seo-gaca-mcp
Allows analysis of Google Search Console CSV export data for search performance insights.
Provides performance analysis using Google Lighthouse, including Core Web Vitals, mobile and desktop scores, and additional metrics like INP and TTFB.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@seo-gaca-mcprun a technical SEO audit on example.com"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
seo-gaca-mcp
SEO GACA MCP — GEO · Audit · Crawl · Analyze
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GEO · Audit · Crawl · AnalyzeThe 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) |
Related MCP server: mcp-seo-audit
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-mcpUsage 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-mcpTools Reference
Performance (1)
Tool | Description |
| Lighthouse scores + Core Web Vitals: LCP, FCP, CLS, TBT, SI, TTI, INP, TTFB (mobile + desktop) |
Technical SEO (4)
Tool | Description |
| Full 13-step SEO + UX audit with 11-category scoring (1-10) |
| Quick meta tags analysis |
| Robots.txt + sitemap validation |
| HTTP response headers check |
GEO — AI Search Optimization (7)
Tool | Description |
| Princeton 9 methods GEO audit |
| GEO optimization suggestions |
| AI crawler robots.txt analysis (13 bots tracked) |
| Generate AI-optimized robots.txt |
| AI citation readiness check |
| GEO optimization checklist (P0/P1/P2) |
| Traditional SEO checklist (P0/P1/P2) |
Content Analysis (3)
Tool | Description |
| Readability (FK, Fog, FRE) + keyword density |
| E-E-A-T signal detection |
| Topic cluster structure analysis |
Schema / Structured Data (3)
Tool | Description |
| JSON-LD validation vs Google requirements |
| Generate JSON-LD from 10 templates |
| Rich Result eligibility check |
Security (2)
Tool | Description |
| Full SSL/TLS audit (cert chain, TLS versions, ciphers) |
| 7+ security headers analysis |
Links (2)
Tool | Description |
| BFS crawl + internal link graph analysis |
| Quick broken link scan |
Accessibility (1)
Tool | Description |
| WCAG 2.2 Level AA audit |
International & Local (3)
Tool | Description |
| Hreflang validation + reciprocal link check |
| Local SEO + NAP extraction |
| Image/video SEO audit |
Competitors (1)
Tool | Description |
| Side-by-side comparison (up to 3) with optional Lighthouse |
Advanced (4)
Tool | Description |
| SPA/JS rendering detection (React, Next.js, Vue, Angular, Nuxt) |
| Server access log analysis |
| Google Search Console CSV data analysis |
| Audit diff and historical trends |
Reporting (1)
Tool | Description |
| Structured JSON report + branded PDF generation (EN/PL) |
Utility (1)
Tool | Description |
| 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=120License
MIT License — Bartosz Gaca
Built with MCP (Model Context Protocol) by Anthropic.
This server cannot be deployed
Maintenance
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