Website audit tool built for your coding agent
(and squirrels)
Free CLI for SEO, performance & security audits. Built for Claude Code, Cursor, and AI workflows.
Two steps. That's it.
Install the CLI and run audits from Claude Code, Cursor, or any AI agent.
...and watch it work.
What is squirrelscan?
Built Different
A CLI-first audit tool designed from the ground up for developers and AI agents.
AI-Native Design
Built for coding agents. LLM-optimised output works seamlessly with Claude Code, Cursor, and any AI assistant.
Smart Incremental Crawling
ETag, Last-Modified, and content hashing. Skip unchanged pages. Resume interrupted crawls from exact checkpoints.
Developer-First CLI
Single binary, zero dependencies. Shell completions, self-update, and CI/CD compatible exit codes.
150+ Rules, 20 Categories
Comprehensive coverage across SEO, accessibility, performance, and security audits.
E-E-A-T Auditing
Dedicated rules for Experience, Expertise, Authority, and Trust—Google's top ranking signals.
Crawl History & Changes
Track how your site evolves over time. Compare crawls and spot regressions before they hurt rankings.
Multiple Output Formats
Seven formats: console, html, json, markdown, text, llm (compact AI-optimized), xml (verbose enterprise). Export exactly what you need.
AI-Native Design
Built for coding agents. LLM-optimised output works seamlessly with Claude Code, Cursor, and any AI assistant.
Smart Incremental Crawling
ETag, Last-Modified, and content hashing. Skip unchanged pages. Resume interrupted crawls from exact checkpoints.
Developer-First CLI
Single binary, zero dependencies. Shell completions, self-update, and CI/CD compatible exit codes.
150+ Rules, 20 Categories
Comprehensive coverage across SEO, accessibility, performance, and security audits.
E-E-A-T Auditing
Dedicated rules for Experience, Expertise, Authority, and Trust—Google's top ranking signals.
Crawl History & Changes
Track how your site evolves over time. Compare crawls and spot regressions before they hurt rankings.
Multiple Output Formats
Seven formats: console, html, json, markdown, text, llm (compact AI-optimized), xml (verbose enterprise). Export exactly what you need.
153+ Audit Rules and counting
Comprehensive coverage across 20 categories. Every rule provides actionable feedback with severity levels and fix suggestions.
Accessibility
ARIA, focus, landmarks
Adblock
BetaElement hiding, blocked domains
AI
BetaLLM parsability, AI content detection
Analytics
GTM, consent mode
Content
Quality, readability, freshness
Core SEO
Meta tags, canonical URLs, h1, favicon
Crawl
Robots.txt, sitemap, indexing
E-E-A-T
Experience, expertise, trust signals
i18n
Hreflang, lang attribute
Images
Alt text, dimensions, formats
Legal
Privacy, cookies, TOS
Links
Internal, external, broken links
Local SEO
NAP consistency, geo meta
Mobile
Viewport, tap targets
Performance
Core Web Vitals, LCP/CLS/INP
Schema
JSON-LD structured data
Security
HTTPS, CSP, leaked secrets
Social
Open Graph, Twitter cards
URL Structure
Length, hyphens, keywords
Video
VideoObject schema, accessibility
Rules are continuously updated. Run squirrel self update to get the latest.
Works Where You Work
Designed to integrate seamlessly with AI coding tools, desktop agents, and developer workflows.
Terminal
Run anywhere
Claude Code
Native integration
Any Coding Agent
JSON/Markdown output
CI/CD
Fail on audit errors
Built for AI Coding Agents
Watch squirrelscan audit a website and fix issues autonomously in Claude Code. Install the skill to enable your AI coding assistant to run audits, analyze results, and implement fixes autonomously.
Install Skill Now
Add squirrelscan to your AI coding assistant in one command:
npx skills install squirrelscan/skillsExport Your Way
Built for both humans and AI. Choose the right format for your workflow.
Human-Friendly Formats
--format consoleColored terminal output for human reading
--format htmlRich interactive web reports with visualizations
Agent & LLM Native
--format llmCompact token-optimized hybrid XML/text for AI agents (40% smaller than XML)
--format xmlVerbose structured XML for enterprise integration and detailed archival
--format jsonMachine-readable structured data
--format markdownFormatted docs for agents and humans
--format textPlain text for simple parsing
All formats include the same comprehensive audit data—150+ rules across SEO, performance, accessibility, and security. Pick the format that fits your workflow.
Example HTML report
View Full Report