Adapt Progress Evolve · Live
What is GEO
A free, plain-English guide to Generative Engine Optimisation: what GEO is, how AI answers pick their sources, and what is actually worth doing this month. No hype, no invented stats.

About
Most explanations of GEO are either a sales pitch or a rumour. whatisgeo.app is neither: a single-page field guide for business owners and marketers that explains what Generative Engine Optimisation means, how a search-backed AI answer actually happens (query, discover, select, answer), and which of the usual recommendations are platform requirements, which are research findings, and which are just sensible advice.
It includes six principles, a section on letting the right crawlers in (search retrieval and model training are different permissions), a worked rewrite of a product page, a realistic 30-day starter plan, and a repeatable way to measure progress with a fixed prompt set. Every claim links to its source.
The guide practises what it preaches: the whole thing is served to AI systems as Markdown and plain text alongside an llms.txt, with a strict content-security policy and no analytics. An optional email list announces new guides. Live at whatisgeo.app.
Key features
- Plain-English definition of GEO and how it relates to SEO and AEO
- The four stages of a search-backed AI answer
- Six principles, each labelled requirement / research / advice
- Crawler access explained: retrieval vs training permissions
- A 30-day starter plan that assumes no budget
- A repeatable measurement method using a fixed prompt set
- Whole guide served as Markdown, plain text and llms.txt
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