---
title: "Query Fan-Out - Sanjay Shankar M"
url: https://sanjayshankar.me/tag/query-fan-out/
site: Sanjay Shankar M
---

# Query Fan-Out - Sanjay Shankar M

- [How AI Search Engines Work: A Technical Guide for SEO](https://sanjayshankar.me/how-ai-search-engines-work-technical-guide/) — How AI search engines actually work under the hood: query fan-out, RAG retrieval, chunking, the search indexes behind ChatGPT, Gemini, Claude, and Perplexity. (2026-08-04)