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Can the AI engines even read your site?
Blocking a critical crawler suppresses that engine’s citations at the source. This check reads your robots.txt AND sends live requests wearing each crawler’s User-Agent, because a firewall can block GPTBot while your policy says allow, and only a real request sees it.
Reachable is step zero. The question that pays is whether the engines actually name you in answers, and at what rate. Ansengine measures that, prompt by prompt, engine by engine, with real sample sizes.