A curated list of Generative Engine Optimization (GEO), AI Visibility, Answer Engine Optimization (AEO), LLM citations, and AI search resources.
Maintained by GetCiteFlow — Enterprise AI Brand Service.
- What is GEO?
- Research Papers
- GEO Platforms & Tools
- AI Visibility Scanner
- llms.txt Resources
- AI Search Engines
- Guides & Blog Posts
- Communities
- Open Source Projects
- Contributing
Generative Engine Optimization (GEO) is the practice of improving a website's visibility, citations, and recommendations in AI-powered search and answer engines such as ChatGPT, Claude, Gemini, Perplexity, DeepSeek, and Google AI Overviews.
Unlike traditional SEO that targets keyword rankings on Google, GEO focuses on:
- Entity clarity — making sure AI systems understand who you are and what you do
- Structured data — providing machine-readable context via Schema.org markup
- Machine-readable files — llms.txt, llms-full.txt, robots.txt, sitemap.xml
- Citation-worthiness — being referenced as a trusted source by LLMs
- Brand entity building — establishing your brand as an authoritative entity
| Paper | Link |
|---|---|
| GEO: Generative Engine Optimization (Pranav et al., 2024) | arXiv:2407.09737 |
| Princeton GEO Study — Improving visibility in generative search engines | Link |
| A Survey on LLM-based Generative Search | arXiv:2405.00603 |
| Paper | Link |
|---|---|
| Retrieval-Augmented Generation (RAG) for Knowledge-Intensive NLP Tasks | arXiv:2005.11401 |
| Search-Augmented Instruction Tuning | arXiv:2405.00603 |
| Large Language Models as Zero-Shot Search Engines | arXiv:2401.07091 |
| Citation-Enhanced Generation for LLMs | arXiv:2312.06863 |
| Dataset | Description | Link |
|---|---|---|
| GEO-Bench | Benchmark suite for evaluating GEO performance | GitHub |
| LLM Citation Attribution | Evaluating citation accuracy in LLM outputs | Link |
| Tool | Website | Description |
|---|---|---|
| GetCiteFlow | getciteflow.ai | 🔥 AI Visibility Scanner + Enterprise brand optimization |
| EchoRank | echorank.com | Free GEO checker and AI search visibility toolkit with llms.txt generator & citation gap analysis |
| Profound | profound.co | AI search performance monitoring |
| Scrunch AI | scrunchai.com | AI content optimization platform |
| Peec AI | peec.ai | AI-driven SEO analytics |
| MarketMuse | marketmuse.com | Content intelligence & AI optimization |
| Writer | writer.com | Enterprise AI platform with GEO features |
GetCiteFlow offers a free AI Visibility Scanner that analyzes any website across 6 dimensions:
| Dimension | What It Checks |
|---|---|
| 🆔 Entity Clarity | Is your brand/company/product clearly identifiable? |
| 🔖 FAQ Schema | Do you have FAQ structured data for AI rich results? |
| 📄 llms.txt | Is there a machine-readable summary for LLMs? |
| 🤖 Robots.txt | Are AI crawlers (GPTBot, Claude, etc.) allowed? |
| 🏗️ Content Structure | Is your content well-structured for AI consumption? |
| 📊 Overall AI Readiness | 0–100 score with actionable recommendations |
Try it now → getciteflow.ai
llms.txt is a proposed standard for providing AI-friendly summaries of websites. Essential for GEO.
| Resource | Link |
|---|---|
| llms.txt Official Site | llmstxt.org |
| llms-full.txt Generator | llmstxt.firecrawl.dev |
| llms.txt Generator | llmstxt-generator.vercel.app |
| llms-txt Checker | llmstxt-checker.vercel.app |
- llms.txt: The Missing Manual
- How to Create an llms.txt File for AI Crawlers
- llms.txt Explained — A Complete Guide
Here's how major AI search engines handle citations and visibility:
| AI Engine | Citation Style | GEO Priority |
|---|---|---|
| ChatGPT (Search) | Inline source links | ⭐⭐⭐⭐⭐ |
| Claude | No real-time search by default | ⭐⭐⭐ |
| Gemini | Google Search citations | ⭐⭐⭐⭐⭐ |
| Perplexity | Inline numbered sources | ⭐⭐⭐⭐⭐ |
| DeepSeek | Web search citations | ⭐⭐⭐⭐ |
| Copilot (Bing) | Microsoft Bing citations | ⭐⭐⭐⭐ |
| Google AI Overviews | Google organic results | ⭐⭐⭐⭐⭐ |
| Doubao / Qwen | Chinese AI ecosystems | ⭐⭐⭐ |
- What Is GEO? A Complete Introduction — GetCiteFlow
- AI Visibility: The Complete Guide for 2025 — GetCiteFlow
- GEO vs SEO: Key Differences Explained — GetCiteFlow
- How to Rank in ChatGPT Search — GetCiteFlow
- Why ChatGPT Doesn't Mention Your Site — GetCiteFlow
- AI Visibility for SaaS Companies — GetCiteFlow
- AI Visibility for AI Tools — GetCiteFlow
- AI Visibility for Startups — GetCiteFlow
- Building Brand Entities for AI Recognition
- The Role of Structured Data in AI Visibility
- Case Study: How We Increased AI Mentions by 340%
- Google's Guide to AI Overviews
- Bing Webmaster Guidelines for AI
- Schema.org Structured Data Documentation
| Community | Platform | Link |
|---|---|---|
| GEO Practitioners | Discord | Join |
| AI Search Marketers | r/GeoOptimization | |
| LLM Prompt Engineering | Discord | Join |
| SEO x AI Community | Slack | Join |
| GetCiteFlow Updates | X / Twitter | @getciteflow |
| Project | Repository | Description |
|---|---|---|
| GetCiteFlow ⭐ | github.com/yan253319066/CiteFlow | Enterprise AI brand visibility service — free scanner, AI analysis engine, Next.js 15 |
| GetCiteFlow Agent Commerce | github.com/yan253319066/GetCiteFlow-Agent-Commerce | AI agent commerce integration |
| llms.txt Generator | github.com/llmstxt/generator | Generate llms.txt files for any website |
| GEO-Bench | github.com/geobench/geobench | Benchmarking suite for GEO research |
⭐ GetCiteFlow Features:
- Free AI Visibility Scanner — check any URL in seconds
- 6-dimension analysis (Entity Clarity, FAQ Schema, llms.txt, Robots.txt, Content Structure, AI Readiness)
- 0–100 AI Visibility Score with actionable recommendations
- Multi-format report export
- Built with Next.js 15, React 19, Tailwind CSS 4
Contributions are welcome! If you know a great GEO resource, tool, paper, or guide that's missing:
- Fork the repo
- Add your resource (keep alphabetical order within sections)
- Submit a pull request
Please make sure your submission is:
- Directly relevant to GEO, AI visibility, or LLM citations
- Active and maintained (not dead projects)
- Properly categorized in the right section
- Website: getciteflow.ai
- X / Twitter: @getciteflow
- Email: support@getciteflow.ai
- GitHub: yan253319066/CiteFlow
MIT © 2026 Neil Yan