AI agents fetch 3.5mb of HTML to find your phone number.

I’ve been working on a better way. presence.w4 is a 2kb structured identity file at a known endpoint on your domain. AI agents read it directly. No page fetch required.

Schema.org was built for Google crawlers. presence.w4 is built for AI agents.

Spec: github.com/ferretDev/web4-presence-spec

Standard: web4presence.org (coming soon)

WordPress plugin: coming to WP repo

— Shawn McGinnis FerretDev March 17 2026