DNS-AID

DNS-AID is an emerging shorthand for DNS-based AI discovery. It describes the idea of using DNS records, usually TXT records, to point AI agents toward machine-readable metadata such as policy files, API catalogs, llms.txt, or agent capability documents.

This is not yet a widely adopted web standard. Treat it as an agent-readiness pattern, not as a guaranteed ranking factor.

How It Could Work

A site might publish a DNS TXT record that advertises a discovery endpoint:

_ai.example.com TXT "aid=https://example.com/.well-known/ai-discovery.json"

An agent could query DNS before crawling the site, then fetch the declared endpoint to learn what the site supports.

SEO Guidance

Use DNS-AID only as a supporting signal. If you adopt it, keep the linked discovery document consistent with:

• robots.txt
• sitemap.xml
• llms.txt
• HTTP Link headers
• public API documentation

Avoid putting sensitive URLs or secrets in DNS. DNS is public infrastructure.

Related Concepts

• Link Headers for AI Agents
• Agent Skills Index
• API Catalog SEO
• llms.txt

Official Resources

There is no broadly accepted official DNS-AID specification yet. The stable foundations are:

• RFC 1035: Domain Names - Implementation and Specification
• RFC 8615: Well-Known URIs