AI SEO Guide 2026 – How to Appear in ChatGPT, Gemini and Perplexity

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AI SEO Guide 2026: How to Get Cited by ChatGPT, Gemini and Perplexity

October 2026 edition: ChatGPT Ads in Spain, Reddit's citation drop, the new crawler map and 17 GEO myths tested against data.

Portada de la guía AI SEO Guide 2026 de GEO Metrics: El futuro de la búsqueda

When to turn on ChatGPT Ads and when to wait, with the real CPC advertisers are paying

Why 80% of what AI cites is not in Google's top 10

A 30-60-90 day roadmap for CMOs, SEO managers and technical teams

Includes a Markdown version for your agent.

+30k downloads

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GEO Metrics AI SEO Guide 2026 — free ebook on how to appear in ChatGPT, Gemini and Perplexity answers

Adopted by leading companies and industry leaders

What's inside the guide

110+ pages on what changed in GEO between June and October, and what you need to decide now.

ChatGPT Ads, in depth

Timeline, formats, bidding models, real cost and a decision matrix. High-ticket B2B, wait. E-commerce with a clean feed, run a 2 to 4 week test.

ChatGPT Ads, in depth

Timeline, formats, bidding models, real cost and a decision matrix. High-ticket B2B, wait. E-commerce with a clean feed, run a 2 to 4 week test.

Rankings-citations decoupling

A domain can rank #1 on Google and be completely invisible in ChatGPT. The guide empirically documents the divergence and the factors that predict citation across each engine.

Rankings-citations decoupling

A domain can rank #1 on Google and be completely invisible in ChatGPT. The guide empirically documents the divergence and the factors that predict citation across each engine.

Reading is not citing

In August, Reddit lost 86% of its ChatGPT citations in under a week, yet it stayed between 25% and 34% of the pages ChatGPT consulted. Learn to measure what AI reads from your site and what it cites.

Reading is not citing

In August, Reddit lost 86% of its ChatGPT citations in under a week, yet it stayed between 25% and 34% of the pages ChatGPT consulted. Learn to measure what AI reads from your site and what it cites.

Cloudflare and AI agents

Since September 15, AI agents are blocked by default on pages with ads in new or free zones. The guide explains which bots to allow based on your business model.

Cloudflare and AI agents

Since September 15, AI agents are blocked by default on pages with ads in new or free zones. The guide explains which bots to allow based on your business model.

17 GEO myths, tested

llms.txt, schema, the "+40% visibility" claim, AI traffic that "converts 2 or 23 times more". The guide tests them against data and published methodology.

17 GEO myths, tested

llms.txt, schema, the "+40% visibility" claim, AI traffic that "converts 2 or 23 times more". The guide tests them against data and published methodology.

Technical and strategic, in parallel

Three reading routes (strategic, technical and paid) and a 30, 60 and 90 day roadmap, with concrete actions at the end of each key section.

Technical and strategic, in parallel

Three reading routes (strategic, technical and paid) and a 30, 60 and 90 day roadmap, with concrete actions at the end of each key section.

Download the GEO Guide · October 2026

The guide used by +30k marketers already appearing in ChatGPT, Gemini and Perplexity. Get it now.

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