Introduction

What is Answer Engine Optimization?

Answer Engine Optimization (AEO) is the practice of making your website discoverable and citable by AI-powered answer engines like ChatGPT, Claude, Perplexity, and SearchGPT.

Unlike traditional SEO which focuses on search engine result pages (SERPs), AEO ensures your content is understood and referenced by Large Language Models (LLMs) when they generate answers.

Why aeo.js?

AI crawlers and LLMs look for specific files and formats that most websites don’t provide:

• llms.txt — A concise summary of your site written for LLMs
• llms-full.txt — Full content concatenated for deep ingestion
• ai-index.json — Structured content optimized for RAG pipelines
• docs.json — Documentation manifest for content discovery
• Raw Markdown — Per-page .md files for clean content extraction

aeo.js generates all of these automatically from your existing pages — no manual work required.

How it works

1. Install the package and add the plugin for your framework
2. Build your site as usual
3. aeo.js scans your output, extracts content, and generates all AEO files
4. The optional widget lets visitors toggle between human and AI views of your pages

Supported Frameworks

Framework	Import
Astro	aeo.js/astro
Next.js	aeo.js/next
Vite (React, Vue, Svelte)	aeo.js/vite
Nuxt	aeo.js/nuxt
Angular	aeo.js/angular
Webpack	aeo.js/webpack
Any (CLI)	npx aeo.js generate