generated: '2026-07-26'
method: searched
source: live HTTP probes of the /.well-known/ surface, 2026-07-26
host: https://housesigma.com
note: HouseSigma serves no security, identity, or API-discovery documents under /.well-known/ - every
  RFC 9116 / RFC 8414 / OIDC / api-catalog / ai-plugin probe returned an nginx 404 with a 146-byte body.
  The only two documents present are the mobile deep-link association files for the iOS and Android apps,
  which is consistent with a consumer product that has no developer program. The 404s are recorded here
  as negative evidence, not as gaps to fill.
other_hosts:
- host: https://api.housesigma.com
  note: Resolves and is served by nginx, but every path probed - including / , /openapi.json, /swagger.json,
    /docs and /.well-known/security.txt - returns a plain nginx 404. No discovery surface.
hosts:
- host: https://housesigma.com
  documents:
  - path: /.well-known/apple-app-site-association
    status: 200
    file: housesigma-apple-app-site-association.json
    standard: Apple Universal Links
    note: Declares three app IDs under team P5WDG52H57 (com.housesigma.ios plus apptest/appdev) and the
      deep-link path components /app/*, /web/*, /on/*, /bc/*, /ab/*, /home/*, /user/*, /listings/* and
      the /bkv2/landing/rootpage/{listing,estimate,market,precon} landing routes.
  - path: /.well-known/assetlinks.json
    status: 200
    file: housesigma-assetlinks.json
    standard: Android App Links (Digital Asset Links)
    note: delegate_permission/common.handle_all_urls for the Android package com.housesigma.android.
  - path: /.well-known/security.txt
    status: 404
    standard: RFC 9116
  - path: /.well-known/openid-configuration
    status: 404
    standard: OpenID Connect Discovery 1.0
  - path: /.well-known/oauth-authorization-server
    status: 404
    standard: RFC 8414
  - path: /.well-known/oauth-protected-resource
    status: 404
    standard: RFC 9728
  - path: /.well-known/api-catalog
    status: 404
    standard: RFC 9727
  - path: /.well-known/ai-plugin.json
    status: 404
    standard: OpenAI plugin manifest (deprecated)
x-shape-fix:
  converted: '2026-08-20'
  from: documents
  note: Rewritten into hosts[] -> documents[], the only shape well_known_docs() in score.rb reads. A served
    .well-known surface recorded in any other shape scores as absent.