The website QA tool for your coding agent
squirrelscan audits your website for SEO, performance, security, accessibility and agent experience issues, and gives your coding agent exact fixes.
Built for coding agents
LLM-optimised output that plugs straight into Claude Code, Cursor, or any agent. Connect over the CLI, MCP, or API.
Fast, parallel crawling
An optimised crawler and rule engine. Run it locally or fan out across parallel crawls in the cloud.
Rules that fix, not just flag
An intelligent rule engine across 249+ checks, where every finding ships with a concrete fix.
The fix loop
Your agent runs the audit, applies the exact fixes, and re-runs until the score clears your bar. Rescans are incremental so loops are fast, and exit codes make the bar enforceable in CI.
You, to your coding agent
A report worth sharing
Readable enough for your team, structured enough for your coding agent. The same report works for both.
Health score & grade
An at-a-glance score and letter grade, plus scores for SEO, performance, security and agents.
Fix-it guidance
Each issue ships with the concrete fix, the same detail your coding agent needs.
Self-contained HTML
One portable file. No server, no dependencies. Open it or share it anywhere.
Paste it into your agent
The fixes travel with the report. Drop it into Claude Code or Cursor and say: work through these.
Seven output formats
console · html · markdown for humans; llm · json · xml · text for agents.
A live report from auditing squirrelscan.com
Four ways to run it
Same audit engine, same report, four front doors: your terminal, your coding agent, the cloud, or MCP.
CLI
A single binary, zero dependencies. Audit from your terminal and pipe results anywhere.
In your agent
An install-on-demand skill for Claude Code, Cursor, and any coding agent.
Cloud
Browser rendering, AI analysis, and shareable reports, all billed in credits.
MCP
A local stdio server (squirrel mcp) that exposes the audit engine and cloud features as agent tools.
Wiring it into CI? squirrelscan returns CI-friendly exit codes, so you can fail the build on score or severity thresholds.
249+ audit rules and counting
Comprehensive coverage across 21 categories. Every rule provides actionable feedback with severity levels and fix suggestions.
Accessibility
ARIA, focus, landmarks
Blocking
Ad blockers and privacy filters
Agent Experience
llms.txt, AI crawlers, LLM parsability
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
SEO
Meta tags, hreflang, Open Graph
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.
Go further in the cloud
Your CLI runs a full audit locally, for free. Log in and squirrelscan enriches it in the cloud.
Browser rendering
Audit JavaScript-heavy sites and SPAs with a real headless browser.
AI page analysis
LLM parsability scoring and E-E-A-T authority signals on the pages that matter.
Technology detection
385 fingerprints: CMS, frameworks, CDNs, analytics, payments, and security.
Site profilePro
Type, audience, identity, socials, and domain age, used to keep rules relevant.
Dead-link checking
External links verified against a shared global cache.
Editor's summaryPro
A Claude-written exec summary with the big-ticket items and deltas since last run.
Publish & dashboard
Auto-publish shareable reports at reports.squirrelscan.com with score history over time.
Scheduled auditsPro
Re-run daily, weekly, or monthly on autopilot, straight from the dashboard.
Local audits always run free. How the cloud works
The CLI is free. Cloud runs on credits.
Audit any site locally for free, forever. Credits power the cloud extras: browser rendering, AI analysis, published reports, and dead-link checks.
Free
- Full CLI: 249+ audit rules, unlimited local audits
- 500 cloud credits every month
- Publish reports to the dashboard
- 1 concurrent cloud render
Pro
Continuous cloud monitoring for your sites.
- Everything in Free
- 3,000 cloud credits every month
- Scheduled audits: re-run daily, weekly, or monthly on autopilot
- Score history for every site
- Site profile, kept fresh on every audit
- Continuous dead-link checking
- 5 concurrent cloud renders and credit top-ups
Team
Continuous monitoring, run together.
- Everything in Pro
- Minimum 2 seats, billed monthly
- 3,000 credits per seat, pooled across your org
- Manage projects and issues with your team
- Team invites and roles
Enterprise: contact us
SAML and SCIM for larger teams, verified-domain auto-join, and custom contracts.
A typical 50-page audit runs about 60–110 credits. See what credits buy
From the blog
Updates, guides, and thoughts on website auditing, SEO, and building tools for AI workflows.
Introducing hosted MCP for squirrelscan
Point any MCP client at mcp.squirrelscan.com and your agent can audit websites, work the issue tracker, and pull LLM-ready reports. No install, no key copy-paste.
Introducing squirrelscan Cloud
The CLI stays free and local. Log in and the cloud adds rendering, AI analysis, tech detection, and shareable reports.
Publish and Share Audit Reports
One flag turns your audit into a shareable link. Public, unlisted, or private, your call.