Research hub

AI Search Visibility & GEO Research Hub

Everything on this site for being mentioned, cited, and recommended inside ChatGPT, Gemini, Perplexity, Copilot, Claude, and Google AI Overviews: definitions, buying guidance, comparisons, runbooks, and the technical assets behind them.

Foundations

Learn how AI search visibility works

Start with the glossary, then the GEO vs SEO explainer, then the playbook.

glossary

AI Search Visibility & GEO Glossary

The evergreen dictionary of GEO, AEO, mentions, citations, share of voice, llms.txt, and more.

pillar

What Is GEO (Generative Engine Optimization)?

GEO (Generative Engine Optimization) is the practice of making your business easy for AI answer engines to understand, summarize, cite, and recommend. Here is how it works and what to do first.

pillar

How AI Search Engines Work: Retrieval, Synthesis, and Citations

An evergreen explainer of how AI answer engines like ChatGPT, AI Overviews, and Perplexity retrieve, synthesize, and cite content, and what that means for being named in answers.

guide

GEO vs SEO: What Is the Difference AI Businesses Need

A practical GEO vs SEO explainer for AI businesses: what generative engine optimization adds to SEO, when it matters, and which to prioritize your efforts.

guide

GEO Playbook: Make Your AI Business Visible in AI Search

A step-by-step GEO playbook for AI businesses to be mentioned, cited, and recommended inside ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews.

guide

How to Get Cited by AI Answer Engines

A repeatable method for getting cited by ChatGPT, AI Overviews, Gemini, Perplexity, and Copilot: become the source AI engines retrieve, summarize, and link.

guide

Website AI Crawler & llms.txt Checklist

An evergreen technical checklist for making your website easier for AI crawlers to read: llms.txt, robots.txt, structured data, entity signals, and content freshness.

Buying & Comparing

Choose the right GEO tools

Buying guides and side-by-side comparisons for AI visibility platforms.

buying guide

Best GEO and AI Search Visibility Tools in 2026

A practical shortlist of the best GEO and AI search visibility tools for tracking brand mentions and citations in ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews.

buying guide

Best AI Business Tools for 2026

A practical AI business stack for solo founders, creators, agencies, and lean teams: coding, research, SEO, marketing, email, sales, funnels, hosting, and courses.

comparison

SE Ranking vs Writesonic: When to Use SEO or GEO

A practical SE Ranking vs Writesonic comparison for AI businesses, covering SEO breadth, keyword research, rank tracking, GEO visibility, and when to use each.

comparison

Ahrefs Brand Radar vs Otterly: Where to Start Tracking AI Visibility

A practical Ahrefs Brand Radar vs Otterly comparison for small teams: citation depth, budget monitoring, engine coverage, and which AI visibility tracker to pick first.

comparison

Otterly vs Promptwatch: Pick the Right AI Visibility Tracker

A practical Otterly vs Promptwatch comparison for AI businesses: free tier, prompt tracking, citation analysis, crawler logs, and which AI visibility tracker fits your budget.

comparison

GEO vs AEO: Two Ways to Be Seen by AI Answer Engines

A practical GEO vs AEO explainer: generative engine optimization versus answer engine optimization, which signals each one needs, and how to run both in one plan.

profile

Writesonic

Writesonic has pivoted from an AI writing tool to an AI Search Growth Engine with GEO tracking across ChatGPT, Gemini, Perplexity, Claude, and Google AI Overviews.

On-site assets

Technical groundwork

The AI-readiness signals this site runs on, open for inspection.

machine-readable

llms.txt

The site's own llms.txt file: a curated machine-readable map of sections that AI systems can use.

sitemap

sitemap-index.xml

The full list of indexable pages, kept current so crawlers and AI systems find every guide.

tool category

AI Search (GEO) tools

Every GEO and visibility tool in the database, grouped in one category.