WebCheck MCP Server

A Model Context Protocol (MCP) server that gives AI assistants the ability to analyze any website for SEO, accessibility, security, and performance issues.

5 powerful tools your AI assistant can use to audit any URL — no API keys required.

Tools

Tool	What it does
`check_website`	Full health check: SEO score, performance, security headers, image analysis
`check_seo`	Deep SEO audit: title, meta, headings, content quality, Open Graph, structured data
`check_accessibility`	Accessibility scan: alt texts, ARIA landmarks, heading hierarchy, form labels
`find_broken_links`	Crawl all links on a page and report 404s, timeouts, and redirects
`compare_pages`	Side-by-side comparison of two URLs across all metrics

Quick Start

With Claude Code

claude mcp add webcheck -- npx webcheck-mcp

With Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "webcheck": {
      "command": "npx",
      "args": ["webcheck-mcp"]
    }
  }
}

With Cursor / Windsurf

Add to your MCP configuration:

{
  "webcheck": {
    "command": "npx",
    "args": ["webcheck-mcp"]
  }
}

Example Usage

Once installed, just ask your AI assistant:

"Check the SEO of https://mysite.com"
"Find broken links on my homepage"
"Compare my site's SEO with my competitor"
"Run a full website audit on https://example.com"
"Check accessibility issues on my landing page"

Sample Output

> check_seo("https://news.ycombinator.com")

SEO Score: 60/100

Priorities:
- HIGH: Add a meta description (150-160 characters)
- MEDIUM: Add an H1 heading

Issues:
- Title too short (11 chars, recommend 50-60)
- No canonical URL set
- No structured data (JSON-LD)
- Missing Open Graph tags

Features

Zero configuration — no API keys, no accounts, no setup
Works offline — analyzes directly via HTTP, no third-party APIs
Fast — parallel link checking, lightweight HTML parsing
Comprehensive — SEO + accessibility + security + performance in one server
Privacy-friendly — no data sent to any analytics service

Requirements

Node.js 18+
That's it.

Part of the MCP Toolkit

View all servers →

webcheck-mcp — Website health analysis
git-summary-mcp — Git repository intelligence
mcp-checkup — MCP setup health analyzer
dev-utils-mcp — Developer utilities
codescan-mcp — Codebase health scanner

More Tools & Templates

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License

MIT

WebCheck MCP Server