Robots Exclusion Checker

Robots Exclusion Checker is a Chrome extension that shows, as you browse, whether a page is open or closed to crawlers. It reads robots.txt, the meta robots tag and the x-robots-tag header, and raises URL alerts when a page is blocked from indexing. Canonical warnings point out when the canonical URL differs from the page you are viewing, which can change how the URL behaves in search results, and HTTP header details are shown alongside. A newer feature tracks robots.txt rules for 14 bots from OpenAI, Anthropic, Google, Perplexity, Meta and Apple, covering training data collection, search indexing and real-time browsing access. The extension is built for technical SEOs and developers who need a quick read on indexation signals while they work through pages.