generated: '2026-10-04'
method: probed
source: pre-flight dossier (docs platform, portal detections) + CNAME chains and response headers of the hosts apis.yml names
registry: all/0-working/vendors.yml
areas_vocabulary:
- documentation
- developer-portal
- api-gateway
- cdn
- hosting
- sdk-generation
- api-collections
- status-page
- support
- community
- identity
- mcp-hosting
vendors:
- vendor: cloudflare
  name: Cloudflare
  area: cdn
  host: documentation.ubuntu.com
  evidence: header:cf-ray
  signal: header
  confidence: high
  kin_score:
  - https_enforced
  - hsts
- vendor: readthedocs
  name: Read the Docs
  area: documentation
  host: documentation.ubuntu.com
  evidence: cname:readthedocs.com
  signal: docs-platform
  confidence: high
  kin_score: []
reliance:
  areas_vendor_served:
  - cdn
  - documentation
  vendor_count: 2
  areas_observed: 12
  share_of_observable_areas: 0.167
  note: areas where a third party was DETECTED serving this provider; an area absent here was either self-run or not observed, and this script
    cannot tell those apart
checked:
- 'docs-platform: readthedocs'
- canonical.com (Website)
- documentation.ubuntu.com (Documentation)
- status.canonical.com (StatusPage)
- ubuntu.com (SignUp)
- login.ubuntu.com (Login)
- ubuntu.com (Support)
- documentation.ubuntu.com (APIReference)
- ubuntu.com (GettingStarted)
- api.snapcraft.io (baseURL)
- api.charmhub.io (baseURL)
- <maas-host> (baseURL)
- api.launchpad.net (baseURL)