DNS for AI Discovery (DNS-AID) is a proposed standard where sites publish AI-discovery metadata in DNS TXT records at _aid.example.com. The pattern lets agents perform discovery before any HTTP fetch, useful for blocked, redirected or expensive-to-fetch domains.
A TXT record at _aid.<domain> contains structured discovery data: pointer to llms.txt, AI Instructions page URL, MCP server card URL, payment endpoints. Agents query DNS first, then proceed with HTTP based on the discovered metadata.
DNS is faster, cheaper and more cache-friendly than HTTP. For agents at scale, DNS-level discovery saves enormous bandwidth and lets them route around HTTP-level bot blocking.
Add a TXT record at _aid.<your domain>. The Spacemen Digital AI Agent Readiness Check tests for DNS-AID as part of the frontier-standards section.
Run the free 50-signal AI Agent Readiness Check or book a free scoping call.
Score my site