CrawlCheck

CrawlCheck is a powerful, free, and client-side web tool designed to help website owners and SEO professionals optimize their sites for Generative Engine Optimization (GEO). In an era where AI answer engines like ChatGPT, Perplexity, and Claude increasingly dictate content discovery, ensuring your site is properly configured for AI crawlers is paramount.

The platform offers three core functionalities:

1. AI Crawler Auditor: This tool allows users to paste their robots.txt file and instantly audit it against a comprehensive database of over 60 known AI crawlers, including GPTBot, ClaudeBot, PerplexityBot, Bytespider, and Google-Extended. It provides a clear breakdown of which AI engines are allowed or blocked, helping users understand the visibility of their content to these crucial AI systems. This feature is essential for identifying potential blocks that could prevent AI from citing your content, thereby impacting referral traffic and discovery.

2. robots.txt Generator: For those needing to create or update their robots.txt file, CrawlCheck offers an intuitive generator. Users can select from presets or fine-tune permissions for individual crawlers, ensuring a policy that balances AI visibility with content protection. The generated file updates live, making it easy to copy and implement on your domain. This simplifies the complex task of managing access for a rapidly expanding list of AI bots.

3. Structured Data Generator: Recognizing the importance of structured data for AI answer engines, CrawlCheck includes a generator for FAQPage, HowTo, and Article schema. These JSON-LD formats are easily quoted by AI, enhancing the chances of your content being featured in AI-generated answers. Users can fill out simple forms to generate valid schema markup, which can then be pasted directly into their page's <head> section.

CrawlCheck addresses the critical need for Generative Engine Optimization (GEO), a practice focused on making content easily discoverable, trustworthy, and citable by AI. With AI referral traffic experiencing exponential growth, a single Disallow: / rule in an outdated robots.txt can render a site invisible to major AI platforms. CrawlCheck provides the tools to prevent such issues, offering visibility into crawler access and enabling proactive policy generation. The platform emphasizes its privacy-first approach, with all processing occurring locally in the user's browser, requiring no signup or data upload. Additionally, CrawlCheck provides a suite of "GEO guides" that offer practical playbooks, from understanding GEO fundamentals to measuring AI visibility and avoiding common mistakes, further empowering users to master AI-driven content discovery.