All tools
29 free AI visibility tools. No signup required.
Audit & Reports
Free AEO Checker – AI Visibility Analyzer
Free AEO checker and visibility checking tool. One URL: check llms.txt, robots, tools.json, FAQ schema, TTFB. Get AI visibility score. AEO analyzer – no signup.
Universal Developer Analyzer – AI + Schema Audit
One URL: run AI visibility and Schema markup audits. Developer analyzer for combined score. Run SEO, API, Security checks. Free.
Free AEO Audit Lite – Quick AI Visibility Check
Free AEO audit: llms.txt, robots for AI, tools.json, FAQ schema. Quick AI visibility check. Enter URL. No signup.
AI Visibility Report – AI Readiness Checklist
Free AI visibility report and AI readiness checklist. Is your site ready for AI? Links to tools. No signup.
AI Crawler Access
AI Bot Access Checker – GPTBot, ClaudeBot, Perplexity
Check if robots.txt allows or blocks AI crawlers (GPTBot, ClaudeBot, Perplexity). Free AI bot access checker. No signup.
Robots.txt for AI Bots – AI Crawler Rules Parser
Robots.txt for AI: analyze rules for GPTBot, ClaudeBot, Perplexity. See Allow/Disallow for AI crawlers. Free robots.txt AI parser.
X-Robots for AI Checker
Check if X-Robots-Tag blocks AI indexing. Page-level noindex for AI crawlers. Free X-Robots checker. Enter URL.
User-Agent Rules for AI
Test URL for a specific AI bot (GPTBot, ClaudeBot, PerplexityBot). See Allow/Disallow rules. Free AI user-agent tester.
Blocked by AI Tester
Check if URL is blocked for selected AI crawler. Test path against robots.txt. Free blocked URL checker for AI. No signup.
llms.txt
Free llms.txt Validator – llms.txt Checker
Free llms.txt validator and llms.txt checker. Validate syntax, structure for AI discoverability. Paste or enter URL. No signup.
llms.txt Link Checker
Check links in llms.txt (tools, guides, API). Find broken links. Free llms.txt link validator for AI discovery.
llms.txt Content Checker
Check for explicit AI permission, site description, capabilities list in llms.txt. Free content checker. No signup.
Machine-Readable Discovery
Free tools.json Validator – tools.json Checker
Free tools.json validator and tools.json checker. Validate structure for AI discovery. AI agents use tools.json. No signup.
API Status Checker
Check if your site exposes machine-readable status or API list. AI systems use it to discover endpoints. Free discovery checker.
Sitemap for AI Pages
Check if sitemap includes AI-relevant pages (guides, tools, llms.txt). Free sitemap checker for AI discoverability.
Structured Content for AI
Free Schema Markup Checker – FAQ, HowTo, Organization
Free schema markup checker and FAQ schema validator. Check FAQPage, HowTo, Organization JSON-LD. Get schema score. Schema markup analyzer – no signup.
Free FAQ Schema Checker – FAQPage Validator
Free FAQ schema checker and FAQPage validator. Check FAQPage and Question schema. AI citation markup. No signup.
Free HowTo Schema Checker – HowTo Validator
Free HowTo schema checker and HowTo validator. Check steps, duration. Helps AI summarize. No signup.
Definition Finder
Find clear definitions on page suitable for AI citation. Spot X is... or X means... patterns. Free definition scanner.
Citation-Friendly Content Checker
Check paragraph length, lists, headings, answer-style content. Optimize for AI citation. Free content structure checker.
Meta & Snippets for AI
Title Answer-Style Checker
Check if title and meta use question or clear-answer style for SEO and AI. Free title style checker. Enter URL or paste text.
Entity Extraction Preview
Preview entities (dates, names, numbers) that AI might extract from text. Free entity extraction demo.
Snippet Length Checker
Get recommended title and meta description length for AI and search snippets. Avoid truncation. Free snippet length guide.
Speed & Accessibility for Crawlers
TTFB for Crawlers
Measure Time To First Byte for any URL. Fast TTFB helps AI crawlers index your page. Free TTFB checker. Enter URL.
No-JS Fallback Checker
Check if content is available without JavaScript. Crawlers need static HTML. Free no-JS fallback checker for AI visibility.
Mobile-Friendly for Crawlers
Check viewport and content accessibility for crawlers. Mobile-friendly pages are crawled more reliably. Free checker.
Citations & Trust
Source/Author/Date Checker
Check for authorship, publish date, sources. Clear attribution helps AI cite correctly. Free citation checker.
Fact-Check Markup Checker
Check ClaimReview or fact-check markup. Helps AI trust your content. Free fact-check schema validator.
Canonical for AI
Check canonical alignment with main content. Avoid duplicate citations in AI. Free canonical checker for AI visibility.