Lighthouse MCP Server
@danielsogl
About Lighthouse MCP Server
MCP server that enables AI agents to perform comprehensive web audits using Google Lighthouse with 13+ tools for performance, accessibility, SEO, and security analysis.
Config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"lighthouse-mcp-server": {
"command": "npx",
"args": [
"@danielsogl/lighthouse-mcp@latest",
"--chrome-path",
"/usr/bin/google-chrome"
]
}
}
}Tools
11Run a comprehensive Lighthouse audit on a website
Get the accessibility score and recommendations for a website
Get SEO analysis and recommendations for a website
Get the performance score for a website
Get Core Web Vitals metrics for a website
Compare website performance between mobile and desktop devices
Check if website performance meets specified budget thresholds
Get LCP optimization opportunities for a website
Find unused JavaScript code to reduce bundle size
Analyze website resources (images, JS, CSS, fonts) for optimization opportunities
Perform security audit checking HTTPS, CSP, and other security measures
Overview
What is Lighthouse MCP Server?
A Model Context Protocol (MCP) server that provides comprehensive web performance auditing and analysis using Google Lighthouse. It enables LLMs and AI agents to perform detailed website performance assessments, accessibility audits, SEO analysis, security checks, and Core Web Vitals monitoring.
How to use Lighthouse MCP Server?
Install via npx @danielsogl/lighthouse-mcp@latest and configure in your MCP client (VS Code, Cursor, Windsurf, Claude Desktop). For authenticated sessions, launch with a persistent Chrome profile using --profile-path and --no-headless. Attach to an existing Chrome instance using --chrome-port.
Key features of Lighthouse MCP Server
- Performance analysis with Core Web Vitals and optimization recommendations
- Accessibility audits with WCAG compliance checking
- SEO analysis and best practice recommendations
- Security assessment including HTTPS, CSP, and vulnerability scanning
- Resource analysis for JavaScript, CSS, images, and fonts
- Comparative mobile vs desktop analysis with throttling options
- Performance budgets with custom threshold monitoring
Use cases of Lighthouse MCP Server
- Automate Lighthouse audits for continuous performance monitoring
- Assess accessibility compliance and generate WCAG reports
- Analyze SEO opportunities and track best practices
- Compare performance across mobile and desktop devices
- Enforce performance budgets in CI/CD pipelines
FAQ from Lighthouse MCP Server
What are the runtime requirements?
Node.js 22.0.0 or newer and Chrome/Chromium (automatically managed by Lighthouse).
How do I use authenticated sessions with cookies and local storage?
Launch with a persistent Chrome profile using --profile-path <path> and --no-headless. Profile mode disables storage reset so sessions persist across audits.
Can I attach to an existing Chrome instance?
Yes, use --chrome-port <port> or --remote-debugging-port <port> to connect to a Chrome instance launched with remote debugging enabled. Pass --profile-path to preserve storage.
What tools are available for web analysis?
Tools include run_audit, get_performance_score, get_core_web_vitals, get_accessibility_score, get_seo_analysis, check_performance_budget, analyze_resources, find_unused_javascript, and get_security_audit.
Does the server support WSL2?
Yes, set the Chrome binary path explicitly via --chrome-path or the CHROME_PATH environment variable to select the correct Linux binary.
Frequently asked questions
What are the runtime requirements?
Node.js 22.0.0 or newer and Chrome/Chromium (automatically managed by Lighthouse).
How do I use authenticated sessions with cookies and local storage?
Launch with a persistent Chrome profile using `--profile-path <path>` and `--no-headless`. Profile mode disables storage reset so sessions persist across audits.
Can I attach to an existing Chrome instance?
Yes, use `--chrome-port <port>` or `--remote-debugging-port <port>` to connect to a Chrome instance launched with remote debugging enabled. Pass `--profile-path` to preserve storage.
What tools are available for web analysis?
Tools include `run_audit`, `get_performance_score`, `get_core_web_vitals`, `get_accessibility_score`, `get_seo_analysis`, `check_performance_budget`, `analyze_resources`, `find_unused_javascript`, and `get_security_audit`.
Does the server support WSL2?
Yes, set the Chrome binary path explicitly via `--chrome-path` or the `CHROME_PATH` environment variable to select the correct Linux binary.
Basic information
More Other MCP servers
MCP Toolbox for Databases
googleapisMCP Toolbox for Databases is an open source MCP server for databases.
XcodeBuildMCP
cameroncookeA Model Context Protocol (MCP) server and CLI that provides tools for agent use when working on iOS and macOS projects.
DeepMark
DeepMark helps teachers deliver rapid, consistent marking with meaningful feedback for every student β in a fraction of the time. What once took a week, now takes one free period.
ghidraMCP
LaurieWiredMCP Server for Ghidra
MaxKB
1Panel-devπ₯ MaxKB is an open-source platform for building enterprise-grade agents. 强倧ζη¨ηεΌζΊδΌδΈηΊ§ζΊθ½δ½εΉ³ε°γ
Comments