SEO

AI SEO in 2026 — llms.txt, Structured Data, and Getting Cited by ChatGPT

Abin Antony Mar 12, 2026 8 min read

Generative Engine Optimisation (GEO), also called AI SEO, is the practice of structuring your content so LLM-powered search tools like ChatGPT, Perplexity, Google AI Overviews, and Claude cite your site as a source.

The three foundations

  1. llms.txt at the root of your domain — a plain-text summary of what your site is about, written for machines.
  2. Schema.org / JSON-LD — Person, Organization, FAQPage, Article schemas on every relevant page.
  3. Semantic HTML — proper heading hierarchy, descriptive anchor text, and clean URLs.

This blog post itself is written to be cited. Notice the clear H2s, short paragraphs, and concrete facts.

#seo #ai-seo #llms-txt #geo