The machine-readable doorways that let AI tools find, read, and do business with your site.
Can AI agents actually reach and read your site — or do they bounce off and move on?
Sites agents can't access don't get cited — you're invisible to the tools your customers now ask first.
Connection Surface is the set of machine-readable surfaces that let agents index, talk to, and transact with your site without scraping it. A well-formed llms.txt, a fresh sitemap.xml, RSS feeds, and clean public endpoints are the foundation. On top of that, three 2026 cross-platform standards have emerged that agents from OpenAI, Google, Microsoft, and Anthropic are aligning around: A2A AgentCard for agent-to-agent discovery, Universal Commerce Protocol (UCP) for AI-driven checkout, and WebMCP for runtime tool registration in Chrome. Sites that implement these are visible to the agentic web; sites that don't are invisible to it.
Modern agents prefer llms.txt and sitemap.xml when available, then fall back to scraping. Cross-vendor agents discover peer services via A2A AgentCard at /.well-known/agent-card.json. Gemini and Google AI Mode negotiate transactions via UCP profiles at /.well-known/ucp. Gemini in Chrome actuates page-level tools via the WebMCP runtime API. A clean machine-readable surface gets indexed faster and doesn't lose to competitors that did the work to publish these standards.
A valid llms.txt at the site root listing primary pages and intent
A sitemap.xml with real, varied lastmod dates per URL
/.well-known/agent-card.json declaring the site's agent identity and skills (A2A)
/.well-known/ucp declaring checkout capabilities (Google UCP — commerce sites)
navigator.modelContext exposing page tools at runtime (WebMCP — Chrome origin trial)
The free FACTS Score grades this pillar plus the other 4 — and tells you which specific findings are dragging it down.
Free FACTS Score01
The machine-readable facts that tell AI who you are, what you do, and where you work.
02
Clear, lift-ready answers to the questions your buyers actually ask.
04
Reviews, ratings, and proof in machine-readable form, so AI can verify you're worth recommending.
05
Honest, recent signals that tell AI you're still here — and still right.