Common Crawl Decoder: Check AI Crawler Accessibility

A free tool to analyze a domain’s Common Crawl history and spot potential crawler accessibility issues. It shows how many pages were captured over time and helps identify sudden drops or patterns of 403, 429 and 503 responses that may point to CDN, WAF, rate limiting or bot-management restrictions. Common Crawl serves as an external proxy when server logs cannot reveal crawlers that were blocked before reaching the origin.