generated: '2026-09-17'
method: probed
source: live HTTPS probes of the named /.well-known/ path list on every host in apis.yml + OpenAPI servers[]
summary:
  hosts_probed: 4
  paths_probed: 13
  documents_served: 1
note: 'dev.to serves exactly one well-known document: an OpenAI plugin manifest at /.well-known/ai-plugin.json (auth:
  none) that points at a 5KB ChatGPT-plugin subset spec at https://dev.to/openapi.yml — distinct from the full 139-operation
  Forem API V1 spec at https://dev.to/openapi.json. No security.txt, no api-catalog, no OAuth/OIDC discovery and
  no A2A agent card on any host; every one of those returns a real HTML 404, not an SPA shell.'
hosts:
- host: dev.to
  documents:
  - path: /.well-known/security.txt
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/openid-configuration
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/oauth-authorization-server
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/oauth-protected-resource
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/api-catalog
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/ai-plugin.json
    status: 200
    file: dev-to-ai-plugin.json
  - path: /.well-known/agent-card.json
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/agent.json
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/aauth-resource.json
    status: 404
    note: 404 — host serves an HTML 404 page at this path
- host: www.dev.to
  documents:
  - path: /.well-known/security.txt
    status: 404
    note: 404 — host serves an HTML 404 page at this path
- host: developers.forem.com
  documents:
  - path: /.well-known/security.txt
    status: 404
    note: 404 — host serves an HTML 404 page at this path
  - path: /.well-known/agent-card.json
    status: 404
    note: 404 — host serves an HTML 404 page at this path
- host: forem.com
  documents:
  - path: /.well-known/security.txt
    status: 404
    note: 404 — host serves an HTML 404 page at this path