generated: '2026-10-07'
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: s1.dev
  evidence: header:cf-ray
  signal: header
  confidence: high
  kin_score:
  - https_enforced
  - hsts
- vendor: clerk
  name: Clerk
  area: identity
  host: clerk.s1.dev
  evidence: s1-dev-clerk-oauth-authorization-server.json names clerk in its OAuth metadata
  signal: oauth-metadata
  confidence: high
  kin_score:
  - authentication
- vendor: betterstack
  name: Better Stack
  area: status-page
  host: status.search1api.com
  evidence: cname:betteruptime.com
  signal: cname
  confidence: high
  kin_score:
  - status_page
reliance:
  areas_vendor_served:
  - cdn
  - identity
  - status-page
  vendor_count: 3
  areas_observed: 12
  share_of_observable_areas: 0.25
  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: no-docs-host'
- s1.dev (Website)
- s1.dev (DeveloperPortal)
- s1.dev (Documentation)
- s1.dev (APIReference)
- s1.dev (GettingStarted)
- s1.dev (Support)
- app.s1.dev (Login)
- app.s1.dev (SignUp)
- status.search1api.com (StatusPage)
- api.search1api.com (baseURL)
- mcp.search1api.com (baseURL)
- blog.s1.dev (baseURL)
- mcp.search1api.com (mcp)