generated: '2026-08-13'
method: probed
source: probe of every Teads / Outbrain host named in apis.yml
description: >-
  Probe of the standard .well-known discovery surface plus /llms.txt across every
  host this provider names — the developer portal, the Conversions API host, the
  In-Chat Recommendations API host, and the corporate site. ONE real document was
  found: an RFC 9116 security.txt served for mv.outbrain.com (the documented
  In-Chat API host), which 302s to the same document on www.outbrain.com.
  Outbrain and Teads are the same company — Outbrain Inc. acquired Teads in 2025
  and the combined business operates under the Teads brand — so that host is this
  provider's own. Everything else 404s, or is refused with 406 by the WAF in
  front of www.teads.com / www.outbrain.com for any non-HTML request.
  No agent card, no OpenID/OAuth discovery, no api-catalog, no ai-plugin.
hosts:
- host: mv.outbrain.com
  role: Teads In-Chat Recommendations API baseURL
  documents:
  - path: /.well-known/security.txt
    status: 200
    file: teads-security.txt
    redirects_to: https://www.outbrain.com/.well-known/security.txt
    document: true
    note: RFC 9116 security.txt with Contact + Policy. No Expires field.
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/oauth-authorization-server
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
  - path: /llms.txt
    status: 404
  - path: /openapi.json
    status: 404
- host: www.outbrain.com
  role: parent-brand corporate host serving the security.txt above
  documents:
  - path: /.well-known/security.txt
    status: 200
    file: teads-security.txt
    document: true
  - path: /.well-known/agent-card.json
    status: 406
    note: WAF refuses non-HTML requests.
  - path: /.well-known/agent.json
    status: 406
  - path: /.well-known/api-catalog
    status: 406
  - path: /llms.txt
    status: 406
- host: developers.teads.com
  role: developer portal (Docusaurus)
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/oauth-authorization-server
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
  - path: /llms.txt
    status: 404
  - path: /openapi.json
    status: 404
    note: Returns the Docusaurus 404 HTML shell, not a spec.
  - path: /sitemap.xml
    status: 200
    note: 93 documentation URLs; used for the docs sweep behind this enrichment pass.
- host: ca.teads.tv
  role: Teads Conversions API baseURL
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/oauth-authorization-server
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
  - path: /llms.txt
    status: 404
  - path: /openapi.json
    status: 404
  - path: /health
    status: 200
    document: false
    note: Undocumented liveness endpoint; returns the plain string "server is up".
- host: www.teads.com
  role: corporate site
  documents:
  - path: /.well-known/security.txt
    status: 406
    note: >-
      The edge returns 406 for every non-HTML path on this host (also /llms.txt,
      /ads.txt, /sellers.json), including with a browser User-Agent and Accept
      header. HTML paths return 200 normally, so this is content-type refusal,
      not a bot block on the host.
  - path: /.well-known/agent-card.json
    status: 406
  - path: /.well-known/agent.json
    status: 406
  - path: /.well-known/api-catalog
    status: 406
  - path: /llms.txt
    status: 406
summary:
  documents_found: 1
  security_txt: true
  agent_card: false
  openid_configuration: false
  oauth_authorization_server: false
  api_catalog: false
  ai_plugin: false
  llms_txt: false
checked: '2026-08-13'