For a general website audit, squirrelscan is the most established option, offering CLI and MCP access with SEO, performance, security, accessibility and content checks 212. AuditMe, SiteAnalyzerFree and WebsiteIQ are alternatives that run audits across SEO and technical categories 13414.
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squirrelscansquirrelscan.comverified and signed
Audits websites for SEO, performance, security, accessibility and structured data issues and gives coding agents exact fixes, reachable over CLI, MCP or API 212.
official:MCP server · squirrelscan+1 community tools built for it
for agents: audit-website · squirrelscan
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SiteAnalyzerFree™siteanalyzerfree.comwebsite read, tools not yet checked
Runs a free 150+ point website SEO audit covering SEO, speed, AI readiness and security, and offers a developer and agent SEO audit API 3.
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Sources
- 1Website Auditor — Technical SEO & Machine-Readiness Audits | WebsiteIQwebsiteiq.xyz · read 2026-10-29
- 2squirrelscan - The website QA tool for your coding agentsquirrelscan.com · read 2026-10-29
- 3SiteAnalyzerFree™ - Free Website SEO Audit Tool & SEO Audit APIsiteanalyzerfree.com · read 2026-10-29
- 4Free SEO Audit Tool — Analyze Any Website in 60s, No Signupauditme.dev · read 2026-10-29
- 12audit-website: declares "audit-website" (the record we read and signed)unfragile.ai · read 2026-10-24
- 14AuditMe: declares "SEO Audit" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
· WebsiteIQ website read, tools not yet checked
WebsiteIQ is an evidence-first website auditor for technical SEO, structured data, accessibility, performance, trust, crawlability, and machine discovery.
audit-website · audit-website verified and signed
Audit a website with the squirrelscan CLI and fix the findings in code. Runs SEO, performance, security, technical, content, accessibility, and 16 other rule categories (300+ rules), returns an LLM-optimized report, then drives an iterative fix loop, mapping issues to source files, applying fixes, a
· SiteAnalyzerFree™ website read, tools not yet checked
SiteAnalyzerFree™ is a fast 150+ point website SEO audit tool and developer/agent SEO audit API. Scan your site for SEO, speed, AI readiness, and security.
SEO Audit · AuditMe verified and signed
Comprehensive 16-dimension website SEO audit with severity scoring
· Seowebchecker website read, tools not yet checked
SEO Web Checker, Run a free website SEO audit in seconds. 50+ checks: technical SEO, on-page, Core Web Vitals & more. Instant report, no login needed.
· Website Auditor website read, tools not yet checked
See if ChatGPT, Claude, Gemini and Perplexity recommend your business. Free AI visibility checker — no signup, results in about a minute.
· Sitelemetry website read, tools not yet checked
Sitelemetry is an AI website audit tool for security, technical SEO, AI visibility, accessibility, performance and integrations, with agent-ready fixes.
· NexusBro website read, tools not yet checked
Run a free website audit in 30 seconds. AI-powered SEO, performance, and bug detection with copy-paste fix prompts. No signup required.
· Everlange website read, tools not yet checked
Everlange is the AEO software that audits your website against 67 criteria and gets it cited by ChatGPT, Claude, Gemini, Perplexity, Copilot, Grok and Google AI Overviews. AEO, GEO and AIO in one tool. First audit free.
· Webmatik website read, tools not yet checked
Audit any website across 70+ signals — speed, SEO, AI search visibility (GEO), UX, conversion, security — and get a prioritized, plain-English fix plan.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.