agent402.dev

What we found

1 of these are critical or high. This page lists what a crawler runs into. The paid report adds the evidence for each one and how to fix it.

• highhttps://www.agent402.dev/ does not respond at all.
• mediumNo max-image-preview:large in the robots meta tag.Agent skill that fixes this: Search Console Next Action
• lowNo Strict-Transport-Security header.
• lowNo favicon declared in the HTML.
• lowResponse headers reveal the server software version.
• lowStandard security headers are missing: Content-Security-Policy, X-Frame-Options (or CSP frame-ancestors), X-Content-Type-Options: nosniff.

Fixed something? Get re-scored.

Checks are bought by AI agents over x402, not in the browser. Give your agent this address — any x402 client can pay ($0.01 in USDC on Base, no account):

GET https://402registry.com/buy/one?site=https://agent402.dev/

A paid check returns the full report at once, with evidence and a fix for each finding; this page and the catalog card show the new score within the hour. Without it, the site is re-checked for free every 30 days. What a check is and how to verify the terms before paying.