# squirrelscan

> The website QA tool for your coding agent. 249+ SEO, performance, security and agent experience rules, run from the CLI, your coding agent, the cloud, or over MCP.

squirrelscan finds broken links, missing meta tags, slow pages, and security gaps, then hands you the fix, not just a score. Local audits are free and run entirely on your machine; cloud features add hosted crawling, scheduled runs, and shareable reports.

## Docs

- [Getting started](https://docs.squirrelscan.com/quickstart): install the CLI and run your first audit
- [CLI reference](https://docs.squirrelscan.com/cli): commands, flags, and config
- [MCP and developers](https://docs.squirrelscan.com/developers/mcp): connect an agent over MCP or the HTTP API
- [Rules](https://docs.squirrelscan.com/rules): the full audit rule catalog

## Integrate

- [Hosted MCP](https://mcp.squirrelscan.com/mcp): streamable-http transport, OAuth or API key auth
- [OpenAPI spec](https://squirrelscan.com/openapi.json): the public REST surface
- [integrations.json](https://squirrelscan.com/.well-known/integrations.json): machine-readable integration listing
- [Install](https://install.squirrelscan.com): one-line CLI install

## Learn

- [The Nutshell](https://squirrelscan.com/learn): knowledge base covering generative engine optimization, AI coding tools, and site health
- [Generative engine optimization](https://squirrelscan.com/learn/generative-engine-optimization): getting cited by AI answer engines

## Tools

- [Free tools](https://squirrelscan.com/tools): quick checks that run part of a squirrelscan audit
- [Website audit tool](https://squirrelscan.com/tools/website-audit): run 249+ rules across your whole site
- [llms.txt validator](https://squirrelscan.com/tools/llms-txt-validator): check your /llms.txt against the llmstxt.org spec
- [Broken link checker](https://squirrelscan.com/tools/broken-link-checker): find dead internal and external links site-wide
- [Core Web Vitals test](https://squirrelscan.com/tools/core-web-vitals-checker): check LCP, INP, and CLS and the rules behind them
- [Security headers checker](https://squirrelscan.com/tools/security-headers-checker): audit CSP, HSTS, and more across every page

## More

- [Dashboard](https://app.squirrelscan.com): audit history, issues, and credits
- [Blog](https://squirrelscan.com/blog): release notes and how squirrelscan is built