Intrix Inc.

Intrix is a GEO and AEO agency based in Busan, South Korea. We measure what generative AI actually searches for and cites, then fix the bottleneck that keeps a brand out of those answers. Most optimization work starts with content volume. We start with measurement. We built three systems in house and run them ourselves: Intrix-CT traces the queries AI rewrites and the sources it cites. We have collected more than 5,500 responses across ChatGPT, Gemini, Claude and Perplexity. Intrix-Audit checks whether search engines and AI crawlers can reach, read and understand a site. More than 290 audits run to date, scored across 60+ checks with the evidence attached. Intrix-Diff compares a client page against the competitor pages that were actually cited, not the pages that merely rank. We also operate our own testing ground. K-DermZip is a Korean dermatology directory we built and run, with 3,600+ clinic pages and over 640,000 AI crawler visits logged. On that platform we are running a randomized controlled trial across 1,991 clinics to measure whether a specific GEO intervention changes AI crawler behavior. The design, sample and analysis rules were published before we saw any results. That publishing rule applies to everything we do. We state hypotheses, sample sizes and stopping rules before a study begins, we publish outcomes even when our predictions were wrong, and we disclose misjudgements our own audit tool has made. What we have learned so far shapes what we refuse to do. In our observations, mass publishing failed on every asset we measured. AI crawlers skipped auto generated pages entirely on one site. On another, 203 posts in 25 days preceded a 57 percent drop in search clicks, and the decline was uniform across keyword clusters rather than limited to duplicates. So we do not sell content volume. We do not guarantee rankings or citations. Search and AI systems change their policies, competitors move, and site conditions differ. What we commit to is measure