Dev.to
7/15/2026

I Built an AI Search Visibility Checker — and Found Out My Own Site Was Invisible
Short summary
A developer built GEO Auditor, an Apify Actor that checks whether ChatGPT, Claude, and Gemini can actually find and correctly describe your website. It combines a technical crawl audit with LLM probes that send targeted queries to each model and score visibility. Key findings: robots.txt misconfigurations silently kill AI crawlability, structured data errors that pass Google's validator can break LLM parsing, and LLM responses vary wildly across runs requiring multiple samples.
- •GEO Auditor runs technical crawl audits plus LLM probes against ChatGPT, Claude, and Gemini via OpenRouter
- •robots.txt and structured data errors can make sites invisible to AI even with strong Google rankings
- •LLM visibility varies significantly across runs — ChatGPT found a site 8/10 times, Claude 6/10, Gemini 3/10
Generated with AI, which can make mistakes.
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