JSON-LD = SEO.
LLM-LD = AI.
The open standard for AI Search Optimization (ASO). Make your website discoverable, understandable, and actionable by LLMs, AI systems, and agents.
v1.0
Specification
100+
Sites in the Network
Free
Forever
Open
CC BY 4.0 License
Problem
AI crawlers visit your site. They find HTML designed for humans.
Solution
LLM-LD gives them structured data designed for AI.
Three Layer Architecture
Three independent layers. Each works on its own. Together, they're airtight.
LAYER 1: Structured Data That Works Today
Your AI subdomain serves the same content as your main site, enriched with Schema.org markup on every page. AI crawlers already understand this format — no new standard adoption required. This layer delivers value the moment it's deployed.
LAYER 2: Advanced Relationships and Context
Entity files and knowledge graphs give AI systems the connections between your products, services, people, and locations. Not just what you offer — how it all fits together.
LAYER 3: One File, Complete Understanding
llm-index.json — a single file at a known location that tells AI everything about your business in one request. Summary, services, actions, contact, FAQ. The full picture.
See It In Action
This is what the AI will see. One file. Complete Understanding.
{ "@context": ["https://schema.org", "https://llmld.org/v1"], "@type": "llmld:AIWebsite", "llmld:summary": { "one_liner": "Acme Dental is a family dental practice in Tampa, FL.", "key_facts": [ "Serving Tampa since 2006", "4.8 star rating (127 reviews)", "Same-day emergencies" ] }, "llmld:actions": { "primary": [{ "name": "Book Appointment", "url": "https://acmedental.com/book", "type": "schedule" }] } }
One file. Everything AI needs to understand your business.
See full examples →The Discovery Network
Find one site. Discover them all.
A standard without discovery is a document.
A standard with a network is infrastructure.
The LLM Disco Network is the open, free-to-join discovery layer for LLM-LD. When an AI crawler reaches any site in the network, it discovers every other site.
100+ sites. 10 agencies. Growing daily.
Implement the spec. Submit your site. You're in.
A standard with a network is infrastructure.
The LLM Disco Network is the open, free-to-join discovery layer for LLM-LD. When an AI crawler reaches any site in the network, it discovers every other site.
100+ sites. 10 agencies. Growing daily.
Implement the spec. Submit your site. You're in.
Built for the inevitable.
AI search isn't replacing traditional search. It's adding a new channel. The businesses that structure their data for both will dominate both. LLM-LD is how you show up when AI answers the question.