GEO and technical SEO, filed by topic
This is a hub-and-spoke directory. Choose the topic, then open the article that answers one question in full.
AI search optimization
How Perplexity, ChatGPT, and other answer engines read a fetched page, and which parts of a JavaScript site they never see.
HTML architecture
Semantic tags, heading order, tables, and responsive images: the document shape that makes a passage extractable.
Structured data
JSON-LD and FAQPage markup that repeat the visible page, and the claims you should leave unmarked.
Glossary
Definitions of the terms answer engines extract, each on its own page: RAG, zero-click search, GEO, AEO, and the HTML patterns behind them.
Questions about the knowledge hub
Why is this not a chronological blog?
A date stream hides the topic. Each category is a hub, and each article is a spoke that answers one question a crawler can cite.
Who writes these pages?
GeoHTML. The organization is the author. We do not invent a person, a client logo, or a metric for these articles.
Request a free AI-extraction audit
Send one public URL. A person reads the HTML your server returns and writes back what AI crawlers can quote, and what they never see.