CrawlCheck is a comprehensive, free, and client-side platform designed to help website owners control how their content is perceived and utilized by over 60 known AI crawlers, including GPTBot, ClaudeBot, and PerplexityBot. In an era where AI answer engines like ChatGPT, Perplexity, and Claude increasingly influence content discovery, optimizing for Generative Engine Optimization (GEO) is crucial.
The platform offers three primary tools to achieve this:
1. AI Crawler Auditor
This tool allows users to paste their existing robots.txt file and instantly audit it against CrawlCheck's extensive database of 60+ AI crawlers. It provides a clear breakdown of which AI engines are allowed or blocked from accessing specific parts of the site, highlighting potential visibility issues and their implications. This is vital because a single Disallow: / rule can render a site invisible to multiple AI models, impacting referral traffic and citations. The auditor also supports testing specific paths, offering granular insights into crawler access.
2. robots.txt Generator
For those needing to create or update their robots.txt file, the generator offers an intuitive interface. Users can select from various presets or fine-tune permissions for individual crawlers. The generated file updates live, allowing for immediate review and easy copying or downloading. This ensures that websites can craft a policy that balances AI visibility with content protection, preventing unintended data scraping while remaining discoverable by legitimate AI answer engines. The tool also allows adding a Sitemap line based on the user's domain.
3. Structured Data Generator
Recognizing the importance of structured data for AI comprehension, CrawlCheck includes a generator for common schema types: FAQPage, HowTo, and Article. These formats are frequently quoted by AI answer engines. Users can fill out simple forms to generate valid JSON-LD markup, which can then be pasted directly into their webpage's <head> section. This feature helps improve the chances of content being accurately extracted and cited by AI models.
Why Generative Engine Optimization (GEO) Matters Now
AI referral traffic has seen exponential growth, making early adoption of GEO strategies a significant competitive advantage. Many existing robots.txt files were configured before the proliferation of AI crawlers, leading to unintended blocks. CrawlCheck addresses this by providing an easy way to audit and update policies against a dynamic list of AI bots. The platform emphasizes that all parsing, auditing, and generation processes occur locally in the user's browser, ensuring privacy and no data upload or tracking.
CrawlCheck also provides a comprehensive set of "GEO guides" covering topics from understanding GEO and optimizing robots.txt for AI crawlers to measuring AI visibility and avoiding common GEO mistakes. These guides offer practical playbooks to help users navigate the evolving landscape of AI-driven content discovery.
In summary, CrawlCheck empowers website owners with the tools and knowledge to effectively manage their site's interaction with AI crawlers, ensuring optimal visibility and citation in the rapidly expanding AI ecosystem, all without cost or signup.






