AI Crawler Access Checker is a web tool for testing whether 14 AI crawlers can access a public HTTP or HTTPS page. It reads the site’s robots.txt file, requests the page using each crawler’s user agent, and compares the responses with a normal browser request. The report gives a verdict for each crawler and identifies relevant access rules or response differences. The checks include robots.txt permissions, HTTP status codes, page directives such as noindex and nosnippet, and the amount of text available in the raw HTML. The tool also checks for crawler specific meta tags, X Robots Tag headers, a llms.txt file, a sitemap, and the page’s canonical URL. Results are categorized as allowed, partial, blocked, or unknown. Partial results can indicate restrictions such as rate limiting, indexing directives, or little readable text without JavaScript. A typical workflow is to enter a page URL and review the per crawler results to identify possible access restrictions. Each check sends about 18 requests to the site, including 14 headers only crawler requests, and usually takes a few seconds. JavaScript is required to run a check. The tool provides a snapshot rather than a guarantee of what a real crawler receives: bot challenges returned with HTTP 200 may not be detected, and results can vary with rate limits, geographic rules, or other changing server behavior. Server logs are needed to confirm what a real crawler received, and access does not guarantee that a page will be visited, indexed, cited, or used for training.