Squirrelscan

squirrelscan is a website audit tool built to be run by coding agents. It audits a site for SEO, performance, security, accessibility and what it calls agent experience issues, and returns findings that each include a concrete fix, so that an agent such as Claude Code, Cursor, Copilot, Codex or Gemini CLI can apply the changes and re run the audit until the score reaches 100. The core is a single binary command line tool with a rules engine of more than 300 checks and a fast, parallel crawler. It can be used four ways: from the terminal, as an installable skill inside a coding agent, through a cloud service, or through a local MCP server that exposes the audit engine as agent tools. Reports show a health score and letter grade with sub scores, and come in seven formats, including console, HTML and Markdown for people and LLM optimized, JSON and XML for agents. CI friendly exit codes let a build fail on score or severity, and nightly audits are supported. The CLI is open source under the MIT license. Local audits are free and unlimited without an account. Signed in, cloud audits add browser rendering, AI analysis, dead link checks and published reports, billed in credits. Free costs $0 with about 5 cloud audits a month. Pro is $19 per month for about 30 audits, and Team is $29 per seat per month with a two seat minimum. Annual billing is 12 months for the price of 10. Enterprise is by contact.