# Learn

## The building blocks of getting found

Sitemaps, robots.txt, structured data, LLMs, AEO — the terms behind modern search and AI visibility, explained in plain English. No jargon, no assumptions.

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### Concepts

- **What is MetaPilot?**
  The short version: what MetaPilot does and the problem it solves.

- **What is a sitemap?**
  The map of your URLs that search and AI engines use to find your pages.

- **What is robots.txt?**
  The file that tells crawlers — including AI crawlers — where they may go.

- **What are llms.txt and llms-full.txt?**
  The emerging standard for handing AI assistants a clean map of your site.

- **What is structured data?**
  Machine-readable facts (schema.org / JSON-LD) that earn rich results and citations.

- **What is a knowledge graph?**
  Entities and relationships — and why it's not the same as Open Graph.

- **What is Open Graph?**
  The og: tags that control your link previews on social and chat — and how they differ from the knowledge graph.

- **What is an LLM (and an answer engine)?**
  Plain-English AI: how ChatGPT, Perplexity, and Gemini read the web.

- **What is Gemini Deep Research?**
  Google's research agent that reads dozens of sites and writes a cited report. What it does, and how a site becomes one of its sources.

- **What is Answer Engine Optimization (AEO)?**
  Optimizing so AI answer engines understand and cite you — the AI-era counterpart to SEO.

- **What is GEO (Generative Engine Optimization)?**
  Being the source an AI cites when it writes an answer — what GEO means, what works, and what's hype.

- **301 vs 302 redirects**
  Permanent vs temporary redirects — the difference, when to use each, and why it matters for SEO and AI.

- **What is Markdown?**
  The simple text format AI models parse best — and why llms.txt is written in it.

- **What are rich results?**
  The enhanced search listings — stars, FAQs, prices — that structured data earns you.

- **Why FAQs matter for AEO**
  How FAQ content and FAQPage markup get you quoted by AI answer engines.

- **Why page structure and headings matter**
  Clean headings and semantic HTML help readers, search, and AI extract your content.

- **Why can't AI crawlers see my single-page app?**
  React, Vue and Svelte sites serve a near-empty shell. What crawlers read instead, and what you can fix without a rewrite.

- **What are long-tail keywords?**
  Specific, high-intent phrases with less competition — the sweet spot for AI answers.

- **What do impressions, clicks and position mean?**
  The four numbers on a search report, in plain English, and what a page with impressions but no clicks is telling you.

- **GEO vs AEO vs SEO**
  All three compared row by row — what each optimizes for, where the result appears, and how you measure it.

- **SEO vs AEO**
  Ranking in links vs being cited in answers — the two-way comparison, the overlap, and why you want both.

- **What is Cloudflare?**
  The network in front of your site that makes it faster, safer — and lets MetaPilot serve metadata at the edge.

- **What is DNS?**
  The internet's phone book, and what nameservers have to do with connecting Cloudflare.

- **How is metadata served "at the edge"?**
  How a Cloudflare Worker adds your metadata to every page with no code changes or redeploys.

- **What is MCP (Model Context Protocol)?**
  The "USB-C for AI tools" — an open standard for connecting AI to data and tools.

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### Ready to put this into practice?

Our step-by-step guides show you how to set each of these up in MetaPilot.

[Browse the guides →](https://metapilot.io/guides)