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Vouch

Free tools

Free checks of how AI assistants and search crawlers see your site. No sign-up needed.

An AI assistant can only recommend a site its crawlers may read. The AI crawler checker reads your robots.txt, llms.txt and home page the way GPTBot, ClaudeBot, PerplexityBot, Googlebot and ten other crawlers would, and says for each one whether it may read your site and how to fix it if not. Being readable is the first step; what assistants then say about you is what Vouch measures, as the methodology explains.

AI crawler checker

Checks a site's robots.txt, llms.txt, server-rendered text and noindex settings for 14 AI and search crawlers.

Schema and JSON-LD checker

Checks a page's or pasted JSON-LD for parse errors, types and the properties Google documents.

AI readiness page audit

Audits one page for crawler access, structured data, headings, FAQ blocks and answer-friendly writing, with a score and fixes.

llms.txt generator and validator

Builds an llms.txt file and checks an existing one, pasted or fetched from a site, against the llmstxt.org proposal.

AI robots.txt builder

Builds robots.txt rules that allow or block each AI crawler, in the browser.

How the AI crawler checker reads a siteThe checker fetches robots.txt, llms.txt and the home page. It reports which crawlers robots.txt allows, whether llms.txt is present and well formed, whether the main text is in the server HTML, and whether a noindex rule blocks indexing.Your address in, four checks, one reportThree fetches: robots.txt, llms.txt and the home page. No AI involved.robots.txtWhich crawlersmay read pagesllms.txtPresent andwell formedServer HTMLMain text withoutJavaScriptnoindexMeta tag orX-Robots-TagEach AI crawler: allowed or blocked, with a one-line fix
The free checker reads four things: robots.txt rules per crawler, llms.txt, the text in the server HTML and any noindex rule. Each finding comes with a fix.