A common misreading places MX in the same category as Generative Engine Optimisation (GEO) or AI Engine Optimisation (AEO). It is not. The questions are different, and so are the answers.
GEO asks how to increase the probability that a specific class of LLM-powered system cites a specific web page. It is a marketing optimisation, focused on a single channel and a single moment of consumption. MX asks whether any machine can find any document in a corpus, confirm it is genuine, and know whether it is current, regardless of which machine, which format, or which access pathway.
The implication is structural. A document marked up for GEO has been tuned for one kind of reader. A document made MX-compliant is interpretable in isolation, by every kind of reader, with provenance and currency intact even when the document has been copied, summarised, or extracted from its original site.
- GEO scope
- One channel: LLM citation. One format: web pages. One outcome: probability of being cited.
- MX scope
- Any machine: training pipelines, RAG retrievers, search indexers, browser agents, voice assistants. Any format: markdown, HTML, PDF, XMP, code. Three outcomes: findability, genuineness, currency.